CINXE.COM

<!DOCTYPE html> <html lang="en" xmlns:fb="http://www.facebook.com/2008/fbml" class="wf-loading"> <head prefix="og: https://ogp.me/ns# fb: https://ogp.me/ns/fb# academia: https://ogp.me/ns/fb/academia#"> <meta charset="utf-8"> <meta name=viewport content="width=device-width, initial-scale=1"> <meta rel="search" type="application/opensearchdescription+xml" href="/open_search.xml" title="Academia.edu"> <title>Trilobita Research Papers - Academia.edu</title>  <link href="//a.academia-assets.com/images/favicons/favicon-production.ico" rel="shortcut icon" type="image/vnd.microsoft.icon"> <link rel="apple-touch-icon" sizes="57x57" href="//a.academia-assets.com/images/favicons/apple-touch-icon-57x57.png"> <link rel="apple-touch-icon" sizes="60x60" href="//a.academia-assets.com/images/favicons/apple-touch-icon-60x60.png"> <link rel="apple-touch-icon" sizes="72x72" href="//a.academia-assets.com/images/favicons/apple-touch-icon-72x72.png"> <link rel="apple-touch-icon" sizes="76x76" href="//a.academia-assets.com/images/favicons/apple-touch-icon-76x76.png"> <link rel="apple-touch-icon" sizes="114x114" href="//a.academia-assets.com/images/favicons/apple-touch-icon-114x114.png"> <link rel="apple-touch-icon" sizes="120x120" href="//a.academia-assets.com/images/favicons/apple-touch-icon-120x120.png"> <link rel="apple-touch-icon" sizes="144x144" href="//a.academia-assets.com/images/favicons/apple-touch-icon-144x144.png"> <link rel="apple-touch-icon" sizes="152x152" href="//a.academia-assets.com/images/favicons/apple-touch-icon-152x152.png"> <link rel="apple-touch-icon" sizes="180x180" href="//a.academia-assets.com/images/favicons/apple-touch-icon-180x180.png"> <link rel="icon" type="image/png" href="//a.academia-assets.com/images/favicons/favicon-32x32.png" sizes="32x32"> <link rel="icon" type="image/png" href="//a.academia-assets.com/images/favicons/favicon-194x194.png" sizes="194x194"> <link rel="icon" type="image/png" href="//a.academia-assets.com/images/favicons/favicon-96x96.png" sizes="96x96"> <link rel="icon" type="image/png" href="//a.academia-assets.com/images/favicons/android-chrome-192x192.png" sizes="192x192"> <link rel="icon" type="image/png" href="//a.academia-assets.com/images/favicons/favicon-16x16.png" sizes="16x16"> <link rel="manifest" href="//a.academia-assets.com/images/favicons/manifest.json"> <meta name="msapplication-TileColor" content="#2b5797"> <meta name="msapplication-TileImage" content="//a.academia-assets.com/images/favicons/mstile-144x144.png"> <meta name="theme-color" content="#ffffff"> <script> window.performance && window.performance.measure && window.performance.measure("Time To First Byte", "requestStart", "responseStart"); </script> <script> (function() { if (!window.URLSearchParams || !window.history || !window.history.replaceState) { return; } var searchParams = new URLSearchParams(window.location.search); var paramsToDelete = [ 'fs', 'sm', 'swp', 'iid', 'nbs', 'rcc', // related content category 'rcpos', // related content carousel position 'rcpg', // related carousel page 'rchid', // related content hit id 'f_ri', // research interest id, for SEO tracking 'f_fri', // featured research interest, for SEO tracking (param key without value) 'f_rid', // from research interest directory for SEO tracking 'f_loswp', // from research interest pills on LOSWP sidebar for SEO tracking 'rhid', // referrring hit id ]; if (paramsToDelete.every((key) => searchParams.get(key) === null)) { return; } paramsToDelete.forEach((key) => { searchParams.delete(key); }); var cleanUrl = new URL(window.location.href); cleanUrl.search = searchParams.toString(); history.replaceState({}, document.title, cleanUrl); })(); </script> <script async src="https://www.googletagmanager.com/gtag/js?id=G-5VKX33P2DS"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-5VKX33P2DS', { cookie_domain: 'academia.edu', send_page_view: false, }); gtag('event', 'page_view', { 'controller': "by_tag", 'action': "show_one", 'controller_action': 'by_tag#show_one', 'logged_in': 'false', 'edge': 'unknown', // Send nil if there is no A/B test bucket, in case some records get logged // with missing data - that way we can distinguish between the two cases. // ab_test_bucket should be of the form <ab_test_name>:<bucket> 'ab_test_bucket': null, }) </script> <script type="text/javascript"> window.sendUserTiming = function(timingName) { if (!(window.performance && window.performance.measure)) return; var entries = window.performance.getEntriesByName(timingName, "measure"); if (entries.length !== 1) return; var timingValue = Math.round(entries[0].duration); gtag('event', 'timing_complete', { name: timingName, value: timingValue, event_category: 'User-centric', }); }; window.sendUserTiming("Time To First Byte"); </script> <meta name="csrf-param" content="authenticity_token" /> <meta name="csrf-token" content="POJRADkSaRkNULMkfNU40GnxSEaEEqO_ZGh57oTfvFd62HIoNWi1kQ1m4_TeeI5EKj7PE0f59uIF8NwawVfs2g" /> <link href="/Documents/in/Trilobita?after=50%2C14187253" rel="next" /><link crossorigin="" href="https://fonts.gstatic.com/" rel="preconnect" /><link href="https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&family=Gupter:wght@400;500;700&family=IBM+Plex+Mono:wght@300;400&family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20,400,0,0&display=swap" rel="stylesheet" /><link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/design_system/common-2b6f90dbd75f5941bc38f4ad716615f3ac449e7398313bb3bc225fba451cd9fa.css" /> <meta name="description" content="View Trilobita Research Papers on Academia.edu for free." /> <meta name="google-site-verification" content="bKJMBZA7E43xhDOopFZkssMMkBRjvYERV-NaN4R6mrs" /> <script> var $controller_name = 'by_tag'; var $action_name = "show_one"; var $rails_env = 'production'; var $app_rev = '8cbfaf8766d0893fd555467e342c810c6b9f33ae'; var $domain = 'academia.edu'; var $app_host = "academia.edu"; var $asset_host = "academia-assets.com"; var $start_time = new Date().getTime(); var $recaptcha_key = "6LdxlRMTAAAAADnu_zyLhLg0YF9uACwz78shpjJB"; var $recaptcha_invisible_key = "6Lf3KHUUAAAAACggoMpmGJdQDtiyrjVlvGJ6BbAj"; var $disableClientRecordHit = false; </script> <script> window.Aedu = { hit_data: null }; window.Aedu.SiteStats = {"premium_universities_count":14016,"monthly_visitors":"107 million","monthly_visitor_count":107440917,"monthly_visitor_count_in_millions":107,"user_count":283705812,"paper_count":55203019,"paper_count_in_millions":55,"page_count":432000000,"page_count_in_millions":432,"pdf_count":16500000,"pdf_count_in_millions":16}; window.Aedu.serverRenderTime = new Date(1740507340000); window.Aedu.timeDifference = new Date().getTime() - 1740507340000; window.Aedu.isUsingCssV1 = false; window.Aedu.enableLocalization = true; window.Aedu.activateFullstory = false; window.Aedu.serviceAvailability = { status: {"attention_db":"on","bibliography_db":"on","contacts_db":"on","email_db":"on","indexability_db":"on","mentions_db":"on","news_db":"on","notifications_db":"on","offsite_mentions_db":"on","redshift":"on","redshift_exports_db":"on","related_works_db":"on","ring_db":"on","user_tests_db":"on"}, serviceEnabled: function(service) { return this.status[service] === "on"; }, readEnabled: function(service) { return this.serviceEnabled(service) || this.status[service] === "read_only"; }, }; window.Aedu.viewApmTrace = function() { // Check if x-apm-trace-id meta tag is set, and open the trace in APM // in a new window if it is. var apmTraceId = document.head.querySelector('meta[name="x-apm-trace-id"]'); if (apmTraceId) { var traceId = apmTraceId.content; // Use trace ID to construct URL, an example URL looks like: // https://app.datadoghq.com/apm/traces?query=trace_id%31298410148923562634 var apmUrl = 'https://app.datadoghq.com/apm/traces?query=trace_id%3A' + traceId; window.open(apmUrl, '_blank'); } }; </script>  <link href="https://fonts.googleapis.com/css?family=Roboto:100,100i,300,300i,400,400i,500,500i,700,700i,900,900i" rel="stylesheet"> <link rel="preload" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css" as="style" onload="this.rel='stylesheet'"> <link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/libraries-a9675dcb01ec4ef6aa807ba772c7a5a00c1820d3ff661c1038a20f80d06bb4e4.css" /> <link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/academia-1eb081e01ca8bc0c1b1d866df79d9eb4dd2c484e4beecf76e79a7806c72fee08.css" /> <link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/design_system_legacy-056a9113b9a0f5343d013b29ee1929d5a18be35fdcdceb616600b4db8bd20054.css" /> <script src="//a.academia-assets.com/assets/webpack_bundles/runtime-bundle-005434038af4252ca37c527588411a3d6a0eabb5f727fac83f8bbe7fd88d93bb.js"></script> <script src="//a.academia-assets.com/assets/webpack_bundles/webpack_libraries_and_infrequently_changed.wjs-bundle-0f3bf7f6f3517097948bf4ffb828d255bab326cd7f9daa1b0fac1bbd8d6b6df6.js"></script> <script src="//a.academia-assets.com/assets/webpack_bundles/core_webpack.wjs-bundle-bb770f3e69f95986e63e7c7781a4a48d351e700cb7be914bb67d866ee608a254.js"></script> <script src="//a.academia-assets.com/assets/webpack_bundles/sentry.wjs-bundle-5fe03fddca915c8ba0f7edbe64c194308e8ce5abaed7bffe1255ff37549c4808.js"></script> <script> jade = window.jade || {}; jade.helpers = window.$h; jade._ = window._; </script>  <script id="tag-manager-head-root">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer_old','GTM-5G9JF7Z');</script>  <script> window.gptadslots = []; window.googletag = window.googletag || {}; window.googletag.cmd = window.googletag.cmd || []; </script> <script type="text/javascript"> // TODO(jacob): This should be defined, may be rare load order problem. // Checking if null is just a quick fix, will default to en if unset. // Better fix is to run this immedietely after I18n is set. if (window.I18n != null) { I18n.defaultLocale = "en"; I18n.locale = "en"; I18n.fallbacks = true; } </script> <link rel="canonical" href="https://www.academia.edu/Documents/in/Trilobita" /> </head>   <body class='c-by_tag a-show_one logged_out u-bgColorWhite'>  <div id="fb-root"></div><script>window.fbAsyncInit = function() { FB.init({ appId: "2369844204", version: "v8.0", status: true, cookie: true, xfbml: true }); // Additional initialization code. if (window.InitFacebook) { // facebook.ts already loaded, set it up. window.InitFacebook(); } else { // Set a flag for facebook.ts to find when it loads. window.academiaAuthReadyFacebook = true; } };</script><script>window.fbAsyncLoad = function() { // Protection against double calling of this function if (window.FB) { return; } (function(d, s, id){ var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) {return;} js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/sdk.js"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk')); } if (!window.defer_facebook) { // Autoload if not deferred window.fbAsyncLoad(); } else { // Defer loading by 5 seconds setTimeout(function() { window.fbAsyncLoad(); }, 5000); }</script> <div id="google-root"></div><script>window.loadGoogle = function() { if (window.InitGoogle) { // google.ts already loaded, set it up. window.InitGoogle("331998490334-rsn3chp12mbkiqhl6e7lu2q0mlbu0f1b"); } else { // Set a flag for google.ts to use when it loads. window.GoogleClientID = "331998490334-rsn3chp12mbkiqhl6e7lu2q0mlbu0f1b"; } };</script><script>window.googleAsyncLoad = function() { // Protection against double calling of this function (function(d) { var js; var id = 'google-jssdk'; var ref = d.getElementsByTagName('script')[0]; if (d.getElementById(id)) { return; } js = d.createElement('script'); js.id = id; js.async = true; js.onload = loadGoogle; js.src = "https://accounts.google.com/gsi/client" ref.parentNode.insertBefore(js, ref); }(document)); } if (!window.defer_google) { // Autoload if not deferred window.googleAsyncLoad(); } else { // Defer loading by 5 seconds setTimeout(function() { window.googleAsyncLoad(); }, 5000); }</script> <div id="tag-manager-body-root">  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-5G9JF7Z" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>   <script> window.addEventListener('load', function() { if (document.querySelector('input[name="commit"]')) { document.querySelector('input[name="commit"]').addEventListener('click', function() { gtag('event', 'click', { event_category: 'button', event_label: 'Log In' }) }) } }); </script> </div> <script>var _comscore = _comscore || []; _comscore.push({ c1: "2", c2: "26766707" }); (function() { var s = document.createElement("script"), el = document.getElementsByTagName("script")[0]; s.async = true; s.src = (document.location.protocol == "https:" ? "https://sb" : "http://b") + ".scorecardresearch.com/beacon.js"; el.parentNode.insertBefore(s, el); })();</script><img src="https://sb.scorecardresearch.com/p?c1=2&c2=26766707&cv=2.0&cj=1" style="position: absolute; visibility: hidden" /> <div id='react-modal'></div> <div class='DesignSystem'> <a class='u-showOnFocus' href='#site'> Skip to main content </a> </div> <div id="upgrade_ie_banner" style="display: none;"><p>Academia.edu no longer supports Internet Explorer.</p><p>To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to <a href="https://www.academia.edu/upgrade-browser">upgrade your browser</a>.</p></div><script>// Show this banner for all versions of IE if (!!window.MSInputMethodContext || /(MSIE)/.test(navigator.userAgent)) { document.getElementById('upgrade_ie_banner').style.display = 'block'; }</script> <div class="DesignSystem bootstrap ShrinkableNav no-sm no-md"><div class="navbar navbar-default main-header"><div class="container-wrapper" id="main-header-container"><div class="container"><div class="navbar-header"><div class="nav-left-wrapper u-mt0x"><div class="nav-logo"><a data-main-header-link-target="logo_home" href="https://www.academia.edu/"><img class="visible-xs-inline-block" style="height: 24px;" alt="Academia.edu" src="//a.academia-assets.com/images/academia-logo-redesign-2015-A.svg" width="24" height="24" /><img width="145.2" height="18" class="hidden-xs" style="height: 24px;" alt="Academia.edu" src="//a.academia-assets.com/images/academia-logo-redesign-2015.svg" /></a></div><div class="nav-search"><div class="SiteSearch-wrapper select2-no-default-pills"><form class="js-SiteSearch-form DesignSystem" action="https://www.academia.edu/search" accept-charset="UTF-8" method="get"><i class="SiteSearch-icon fa fa-search u-fw700 u-positionAbsolute u-tcGrayDark"></i><input class="js-SiteSearch-form-input SiteSearch-form-input form-control" data-main-header-click-target="search_input" name="q" placeholder="Search" type="text" value="" /></form></div></div></div><div class="nav-right-wrapper pull-right"><ul class="NavLinks js-main-nav list-unstyled"><li class="NavLinks-link"><a class="js-header-login-url Button Button--inverseGray Button--sm u-mb4x" id="nav_log_in" rel="nofollow" href="https://www.academia.edu/login">Log In</a></li><li class="NavLinks-link u-p0x"><a class="Button Button--inverseGray Button--sm u-mb4x" rel="nofollow" href="https://www.academia.edu/signup">Sign Up</a></li></ul><button class="hidden-lg hidden-md hidden-sm u-ml4x navbar-toggle collapsed" data-target=".js-mobile-header-links" data-toggle="collapse" type="button"><span class="icon-bar"></span><span class="icon-bar"></span><span class="icon-bar"></span></button></div></div><div class="collapse navbar-collapse js-mobile-header-links"><ul class="nav navbar-nav"><li class="u-borderColorGrayLight u-borderBottom1"><a rel="nofollow" href="https://www.academia.edu/login">Log In</a></li><li class="u-borderColorGrayLight u-borderBottom1"><a rel="nofollow" href="https://www.academia.edu/signup">Sign Up</a></li><li class="u-borderColorGrayLight u-borderBottom1 js-mobile-nav-expand-trigger"><a href="#">more&nbsp<span class="caret"></span></a></li><li><ul class="js-mobile-nav-expand-section nav navbar-nav u-m0x collapse"><li class="u-borderColorGrayLight u-borderBottom1"><a rel="false" href="https://www.academia.edu/about">About</a></li><li class="u-borderColorGrayLight u-borderBottom1"><a rel="nofollow" href="https://www.academia.edu/press">Press</a></li><li class="u-borderColorGrayLight u-borderBottom1"><a rel="false" href="https://www.academia.edu/documents">Papers</a></li><li class="u-borderColorGrayLight u-borderBottom1"><a rel="nofollow" href="https://www.academia.edu/terms">Terms</a></li><li class="u-borderColorGrayLight u-borderBottom1"><a rel="nofollow" href="https://www.academia.edu/privacy">Privacy</a></li><li class="u-borderColorGrayLight u-borderBottom1"><a rel="nofollow" href="https://www.academia.edu/copyright">Copyright</a></li><li class="u-borderColorGrayLight u-borderBottom1"><a rel="nofollow" href="https://www.academia.edu/hiring"><i class="fa fa-briefcase"></i> We're Hiring!</a></li><li class="u-borderColorGrayLight u-borderBottom1"><a rel="nofollow" href="https://support.academia.edu/hc/en-us"><i class="fa fa-question-circle"></i> Help Center</a></li><li class="js-mobile-nav-collapse-trigger u-borderColorGrayLight u-borderBottom1 dropup" style="display:none"><a href="#">less&nbsp<span class="caret"></span></a></li></ul></li></ul></div></div></div><script>(function(){ var $moreLink = $(".js-mobile-nav-expand-trigger"); var $lessLink = $(".js-mobile-nav-collapse-trigger"); var $section = $('.js-mobile-nav-expand-section'); $moreLink.click(function(ev){ ev.preventDefault(); $moreLink.hide(); $lessLink.show(); $section.collapse('show'); }); $lessLink.click(function(ev){ ev.preventDefault(); $moreLink.show(); $lessLink.hide(); $section.collapse('hide'); }); })() if ($a.is_logged_in() || false) { new Aedu.NavigationController({ el: '.js-main-nav', showHighlightedNotification: false }); } else { $(".js-header-login-url").attr("href", $a.loginUrlWithRedirect()); } Aedu.autocompleteSearch = new AutocompleteSearch({el: '.js-SiteSearch-form'});</script></div></div> <div id='site' class='fixed'> <div id="content" class="clearfix"> <script>document.addEventListener('DOMContentLoaded', function(){ var $dismissible = $(".dismissible_banner"); $dismissible.click(function(ev) { $dismissible.hide(); }); });</script> <div class="DesignSystem" style="margin-top:-40px"><div class="PageHeader"><div class="container"><div class="row"><style type="text/css">.sor-abstract { display: -webkit-box; overflow: hidden; text-overflow: ellipsis; -webkit-line-clamp: 3; -webkit-box-orient: vertical; }</style><div class="col-xs-12 clearfix"><div class="u-floatLeft"><h1 class="PageHeader-title u-m0x u-fs30">Trilobita</h1><div class="u-tcGrayDark">3,987 Followers</div><div class="u-tcGrayDark u-mt2x">Recent papers in <b>Trilobita</b></div></div></div></div></div></div><div class="TabbedNavigation"><div class="container"><div class="row"><div class="col-xs-12 clearfix"><ul class="nav u-m0x u-p0x list-inline u-displayFlex"><li class="active"><a href="https://www.academia.edu/Documents/in/Trilobita">Top Papers</a></li><li><a href="https://www.academia.edu/Documents/in/Trilobita/MostCited">Most Cited Papers</a></li><li><a href="https://www.academia.edu/Documents/in/Trilobita/MostDownloaded">Most Downloaded Papers</a></li><li><a href="https://www.academia.edu/Documents/in/Trilobita/MostRecent">Newest Papers</a></li><li><a class="" href="https://www.academia.edu/People/Trilobita">People</a></li></ul></div><style type="text/css">ul.nav{flex-direction:row}@media(max-width: 567px){ul.nav{flex-direction:column}.TabbedNavigation li{max-width:100%}.TabbedNavigation li.active{background-color:var(--background-grey, #dddde2)}.TabbedNavigation li.active:before,.TabbedNavigation li.active:after{display:none}}</style></div></div></div><div class="container"><div class="row"><div class="col-xs-12"><div class="u-displayFlex"><div class="u-flexGrow1"><div class="works"><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_8950372" data-work_id="8950372" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/8950372/Kladistik_der_Euarthropoda_unter_besonderer_Ber%C3%BCcksichtigung_der_Trilobita">Kladistik der Euarthropoda unter besonderer Berücksichtigung der Trilobita</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/8950372" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="ff1f7e0c31785a51d05ea1f5936dd1fe" rel="nofollow" data-download="{"attachment_id":35269734,"asset_id":8950372,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/35269734/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3042744" href="https://univie.academia.edu/MatthiasSvojtka">Matthias Svojtka</a><script data-card-contents-for-user="3042744" type="text/json">{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}</script></span></span></li><li class="js-paper-rank-work_8950372 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="8950372"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 8950372, container: ".js-paper-rank-work_8950372", }); });</script></li><li class="js-percentile-work_8950372 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 8950372; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_8950372"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_8950372 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="8950372"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 8950372; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=8950372]").text(description); $(".js-view-count-work_8950372").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_8950372").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="8950372"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">6</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30296" rel="nofollow" href="https://www.academia.edu/Documents/in/Cladistics_Systematic_Biology_">Cladistics (Systematic Biology)</a>, <script data-card-contents-for-ri="30296" type="text/json">{"id":30296,"name":"Cladistics (Systematic Biology)","url":"https://www.academia.edu/Documents/in/Cladistics_Systematic_Biology_?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a>, <script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="57925" rel="nofollow" href="https://www.academia.edu/Documents/in/Arthropoda">Arthropoda</a><script data-card-contents-for-ri="57925" type="text/json">{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=8950372]'), work: {"id":8950372,"title":"Kladistik der Euarthropoda unter besonderer Berücksichtigung der Trilobita","created_at":"2014-10-24T21:34:47.630-07:00","url":"https://www.academia.edu/8950372/Kladistik_der_Euarthropoda_unter_besonderer_Ber%C3%BCcksichtigung_der_Trilobita?f_ri=24357","dom_id":"work_8950372","summary":null,"downloadable_attachments":[{"id":35269734,"asset_id":8950372,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30296,"name":"Cladistics (Systematic Biology)","url":"https://www.academia.edu/Documents/in/Cladistics_Systematic_Biology_?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357","nofollow":true},{"id":94388,"name":"Trilobite","url":"https://www.academia.edu/Documents/in/Trilobite?f_ri=24357"},{"id":245668,"name":"Arthropods","url":"https://www.academia.edu/Documents/in/Arthropods?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_1781252" data-work_id="1781252" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/1781252/Pattern_and_process_in_the_evolution_of_the_Odontopleuridae_Trilobita_The_Selenopeltinae_and_Ceratocephalinae">Pattern and process in the evolution of the Odontopleuridae (Trilobita). The Selenopeltinae and Ceratocephalinae</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/1781252" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="b874bbb5a3571466da555a3621586871" rel="nofollow" data-download="{"attachment_id":31671704,"asset_id":1781252,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/31671704/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="1287092" href="https://independent.academia.edu/LarsRamskold">Lars Ramskold</a><script data-card-contents-for-user="1287092" type="text/json">{"id":1287092,"first_name":"Lars","last_name":"Ramskold","domain_name":"independent","page_name":"LarsRamskold","display_name":"Lars Ramskold","profile_url":"https://independent.academia.edu/LarsRamskold?f_ri=24357","photo":"https://0.academia-photos.com/1287092/2015583/2377145/s65_lars.ramskold.jpg"}</script></span></span></li><li class="js-paper-rank-work_1781252 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="1781252"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 1781252, container: ".js-paper-rank-work_1781252", }); });</script></li><li class="js-percentile-work_1781252 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 1781252; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_1781252"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_1781252 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="1781252"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1781252; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=1781252]").text(description); $(".js-view-count-work_1781252").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_1781252").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="1781252"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">11</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="4207" rel="nofollow" href="https://www.academia.edu/Documents/in/Phylogenetics">Phylogenetics</a>, <script data-card-contents-for-ri="4207" type="text/json">{"id":4207,"name":"Phylogenetics","url":"https://www.academia.edu/Documents/in/Phylogenetics?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="28160" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeontology">Palaeontology</a><script data-card-contents-for-ri="28160" type="text/json">{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=1781252]'), work: {"id":1781252,"title":"Pattern and process in the evolution of the Odontopleuridae (Trilobita). The Selenopeltinae and Ceratocephalinae","created_at":"2012-07-11T03:26:57.368-07:00","url":"https://www.academia.edu/1781252/Pattern_and_process_in_the_evolution_of_the_Odontopleuridae_Trilobita_The_Selenopeltinae_and_Ceratocephalinae?f_ri=24357","dom_id":"work_1781252","summary":null,"downloadable_attachments":[{"id":31671704,"asset_id":1781252,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":1287092,"first_name":"Lars","last_name":"Ramskold","domain_name":"independent","page_name":"LarsRamskold","display_name":"Lars Ramskold","profile_url":"https://independent.academia.edu/LarsRamskold?f_ri=24357","photo":"https://0.academia-photos.com/1287092/2015583/2377145/s65_lars.ramskold.jpg"}],"research_interests":[{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":4207,"name":"Phylogenetics","url":"https://www.academia.edu/Documents/in/Phylogenetics?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":33576,"name":"Invertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Paleontology?f_ri=24357"},{"id":54160,"name":"Cladistics","url":"https://www.academia.edu/Documents/in/Cladistics?f_ri=24357"},{"id":64643,"name":"Silurian","url":"https://www.academia.edu/Documents/in/Silurian?f_ri=24357"},{"id":76748,"name":"Devonian","url":"https://www.academia.edu/Documents/in/Devonian?f_ri=24357"},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357"},{"id":79166,"name":"Ordovician","url":"https://www.academia.edu/Documents/in/Ordovician?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_49161325" data-work_id="49161325" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/49161325/Petrograf%C3%ADa_y_paleontolog%C3%ADa_de_las_rocas_paleozoicas_en_el_%C3%A1rea_de_Buill_42oS_costa_norte_del_fiordo_Re%C3%B1ihue_Regi%C3%B3n_de_los_Lagos">Petrografía y paleontología de las rocas paleozoicas en el área de Buill (42ºS), costa norte del fiordo Reñihue, Región de los Lagos.</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest">Petrografía y paleontología de las rocas paleozoicas en el área de Buill (42ºS), costa norte del fiordo Reñihue, Región de los Lagos. Memoria para optar al título de geólogo</div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/49161325" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="927bf1e384f47fdc049c2402e792ff25" rel="nofollow" data-download="{"attachment_id":67548252,"asset_id":49161325,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/67548252/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="192183037" href="https://independent.academia.edu/FelipeOrtiz230">Felipe Ortiz</a><script data-card-contents-for-user="192183037" type="text/json">{"id":192183037,"first_name":"Felipe","last_name":"Ortiz","domain_name":"independent","page_name":"FelipeOrtiz230","display_name":"Felipe Ortiz","profile_url":"https://independent.academia.edu/FelipeOrtiz230?f_ri=24357","photo":"https://0.academia-photos.com/192183037/55073493/43240375/s65_felipe.ortiz.jpeg"}</script></span></span></li><li class="js-paper-rank-work_49161325 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="49161325"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 49161325, container: ".js-paper-rank-work_49161325", }); });</script></li><li class="js-percentile-work_49161325 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 49161325; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_49161325"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_49161325 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="49161325"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 49161325; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=49161325]").text(description); $(".js-view-count-work_49161325").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_49161325").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="49161325"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">7</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="406" rel="nofollow" href="https://www.academia.edu/Documents/in/Geology">Geology</a>, <script data-card-contents-for-ri="406" type="text/json">{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="13530" rel="nofollow" href="https://www.academia.edu/Documents/in/Chile">Chile</a>, <script data-card-contents-for-ri="13530" type="text/json">{"id":13530,"name":"Chile","url":"https://www.academia.edu/Documents/in/Chile?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=49161325]'), work: {"id":49161325,"title":"Petrografía y paleontología de las rocas paleozoicas en el área de Buill (42ºS), costa norte del fiordo Reñihue, Región de los Lagos.","created_at":"2021-06-07T13:26:51.646-07:00","url":"https://www.academia.edu/49161325/Petrograf%C3%ADa_y_paleontolog%C3%ADa_de_las_rocas_paleozoicas_en_el_%C3%A1rea_de_Buill_42oS_costa_norte_del_fiordo_Re%C3%B1ihue_Regi%C3%B3n_de_los_Lagos?f_ri=24357","dom_id":"work_49161325","summary":"Petrografía y paleontología de las rocas paleozoicas en el área de Buill (42ºS), costa norte del fiordo Reñihue, Región de los Lagos. Memoria para optar al título de geólogo","downloadable_attachments":[{"id":67548252,"asset_id":49161325,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":192183037,"first_name":"Felipe","last_name":"Ortiz","domain_name":"independent","page_name":"FelipeOrtiz230","display_name":"Felipe Ortiz","profile_url":"https://independent.academia.edu/FelipeOrtiz230?f_ri=24357","photo":"https://0.academia-photos.com/192183037/55073493/43240375/s65_felipe.ortiz.jpeg"}],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357","nofollow":true},{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":13530,"name":"Chile","url":"https://www.academia.edu/Documents/in/Chile?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":33576,"name":"Invertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Paleontology?f_ri=24357"},{"id":176798,"name":"South America","url":"https://www.academia.edu/Documents/in/South_America?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_36836330" data-work_id="36836330" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/36836330/Fossiles_du_Maroc_Tome_I_Gisements_embl%C3%A9matiques_du_Pal%C3%A9ozo%C3%AFque_de_l_Anti_Atlas_Fossils_from_Morocco_Volume_I_Emblematic_localities_from_the_Palaeozoic_of_the_Anti_Atlas">Fossiles du Maroc. Tome I. Gisements emblématiques du Paléozoïque de l’Anti-Atlas. Fossils from Morocco. Volume I. Emblematic localities from the Palaeozoic of the Anti-Atlas</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Le Sud du Maroc recèle un incomparable ensemble d'archives paléontologiques sur les premiers développements de la Vie durant près de 180 millions d'années. Au travers d'illustrations somptueuses, servies par un texte remarquablement... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_36836330" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Le Sud du Maroc recèle un incomparable ensemble d'archives paléontologiques sur les premiers développements de la Vie durant près de 180 millions d'années. Au travers d'illustrations somptueuses, servies par un texte remarquablement documenté, l'auteur met en scène de véritables "pépites paléontologiques" patiemment exhumées par les collecteurs locaux et les paléontologues. Ce splendide ouvrage nous entraîne dans un monde extraordinaire, véritable repaire "d'aliens fossiles" aux morphologies les plus improbables ! Plus de 950 photos et illustrations pour un périple paléontologique dans le Sud du Maroc. Morocco contains an incomparable collection of palaeontological archives on the early development of life for nearly 180 million years. Through sumptuous illustrations, served by a remarkably documented text, the author describes and illustrates true "paleontological nuggets" patiently exhumed by local collectors and palaeontologists. This splendid work leads us into an extraordinary world, a true haunt of "fossil aliens" with the most improbable morphologies! More than 950 photos and illustrations for a palaeontological journey in Southern Morocco Southern. « My compliments on the massive and impressive work. This will surely be a book discussed and loved by many. I am excited to be among the first people to read it. » Allart van Viersen (Natuurhistorisch Museum Maastricht) « Un ouvrage de référence remarquablement documenté et superbement illustré sur les fossiles du Paléozoïque marocain : le "paradis des géologues" possède désormais sa Bible! » Bertrand Lefebvre (CNRS, Université Lyon 1)</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/36836330" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="d024ad01e6834c551414ebad98b4b8d7" rel="nofollow" data-download="{"attachment_id":56788769,"asset_id":36836330,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/56788769/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="996273" href="https://independent.academia.edu/PatriceLebrun">Patrice Lebrun</a><script data-card-contents-for-user="996273" type="text/json">{"id":996273,"first_name":"Patrice","last_name":"Lebrun","domain_name":"independent","page_name":"PatriceLebrun","display_name":"Patrice Lebrun","profile_url":"https://independent.academia.edu/PatriceLebrun?f_ri=24357","photo":"https://0.academia-photos.com/996273/2734265/3185127/s65_patrice.lebrun.jpg"}</script></span></span></li><li class="js-paper-rank-work_36836330 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="36836330"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 36836330, container: ".js-paper-rank-work_36836330", }); });</script></li><li class="js-percentile-work_36836330 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 36836330; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_36836330"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_36836330 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="36836330"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 36836330; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=36836330]").text(description); $(".js-view-count-work_36836330").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_36836330").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="36836330"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">8</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="13684" rel="nofollow" href="https://www.academia.edu/Documents/in/Morocco">Morocco</a>, <script data-card-contents-for-ri="13684" type="text/json">{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="13796" rel="nofollow" href="https://www.academia.edu/Documents/in/Echinoderms">Echinoderms</a>, <script data-card-contents-for-ri="13796" type="text/json">{"id":13796,"name":"Echinoderms","url":"https://www.academia.edu/Documents/in/Echinoderms?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=36836330]'), work: {"id":36836330,"title":"Fossiles du Maroc. Tome I. Gisements emblématiques du Paléozoïque de l’Anti-Atlas. Fossils from Morocco. Volume I. Emblematic localities from the Palaeozoic of the Anti-Atlas","created_at":"2018-06-13T06:23:32.277-07:00","url":"https://www.academia.edu/36836330/Fossiles_du_Maroc_Tome_I_Gisements_embl%C3%A9matiques_du_Pal%C3%A9ozo%C3%AFque_de_l_Anti_Atlas_Fossils_from_Morocco_Volume_I_Emblematic_localities_from_the_Palaeozoic_of_the_Anti_Atlas?f_ri=24357","dom_id":"work_36836330","summary":"Le Sud du Maroc recèle un incomparable ensemble d'archives paléontologiques sur les premiers développements de la Vie durant près de 180 millions d'années. Au travers d'illustrations somptueuses, servies par un texte remarquablement documenté, l'auteur met en scène de véritables \"pépites paléontologiques\" patiemment exhumées par les collecteurs locaux et les paléontologues. Ce splendide ouvrage nous entraîne dans un monde extraordinaire, véritable repaire \"d'aliens fossiles\" aux morphologies les plus improbables ! Plus de 950 photos et illustrations pour un périple paléontologique dans le Sud du Maroc. Morocco contains an incomparable collection of palaeontological archives on the early development of life for nearly 180 million years. Through sumptuous illustrations, served by a remarkably documented text, the author describes and illustrates true \"paleontological nuggets\" patiently exhumed by local collectors and palaeontologists. This splendid work leads us into an extraordinary world, a true haunt of \"fossil aliens\" with the most improbable morphologies! More than 950 photos and illustrations for a palaeontological journey in Southern Morocco Southern. « My compliments on the massive and impressive work. This will surely be a book discussed and loved by many. I am excited to be among the first people to read it. » Allart van Viersen (Natuurhistorisch Museum Maastricht) « Un ouvrage de référence remarquablement documenté et superbement illustré sur les fossiles du Paléozoïque marocain : le \"paradis des géologues\" possède désormais sa Bible! » Bertrand Lefebvre (CNRS, Université Lyon 1)","downloadable_attachments":[{"id":56788769,"asset_id":36836330,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":996273,"first_name":"Patrice","last_name":"Lebrun","domain_name":"independent","page_name":"PatriceLebrun","display_name":"Patrice Lebrun","profile_url":"https://independent.academia.edu/PatriceLebrun?f_ri=24357","photo":"https://0.academia-photos.com/996273/2734265/3185127/s65_patrice.lebrun.jpg"}],"research_interests":[{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true},{"id":13796,"name":"Echinoderms","url":"https://www.academia.edu/Documents/in/Echinoderms?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357"},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":36468,"name":"Echinodermata","url":"https://www.academia.edu/Documents/in/Echinodermata?f_ri=24357"},{"id":90326,"name":"Fossils","url":"https://www.academia.edu/Documents/in/Fossils?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_4340678" data-work_id="4340678" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/4340678/Trilobiten_Dreilapper">Trilobiten, Dreilapper</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Trilobiten sind eine ausgestorbene, rein auf das Erdaltefium (Paläozoikum) beschränkte Gruppe mariner Arthropoden (Gliedertiere). Heute noch lebende Arthropoden sind die Crustacea (Krebstiere), die Chelicerata (Spinnentiere), die... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_4340678" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Trilobiten sind eine ausgestorbene, rein auf das Erdaltefium (Paläozoikum) beschränkte Gruppe mariner Arthropoden (Gliedertiere). Heute noch lebende Arthropoden sind die Crustacea (Krebstiere), die Chelicerata (Spinnentiere), die Myriapoda (Tausendfüßler) und die lnsecta (Insekten). Trilobiten sind vom unteren Karnbrium (520 Mio. Jahre vor heute) bis in das obere Perm (255 Mio. Jahre vor heute) nachgewiesen. Ihr Panzer besteht, wie auch bei anderen Gliedeftieren, aus Chitin und Proteinen, allerdings werden bei den Trilobiten Calciumsalze in die Cuticula eingelagert (sie wird ,,calcifizieti"), wodurch sich ihre fossi le Erhaltungsftihigkeit wesentlich erhöht. Die Trilobiten bilden folglich die weitaus wichtigste und am besten überliefefte Gruppe paläozoischer Arthropoden. Durch ihren großen Formenund Individuenreichtum, zusalnmen mit hoher Evolutionsrate und meist guter Bestimmbarkeit stellen sie wichtige Leitfossilien in Kambrium und Ordovicium dar, später sind sie nur mehr von lokal-stratigraphischer Bede utung. MoRpnolocrn DES DoRs¡.lpaNznRs Calcifizierte Panzerteile sind die gesamte Dorsalseite (Rückenseite), der sogenannte Urnschlag (ventrale randliche Foftsetzung des Panzers) und das Hypostom (präorale Mundplatte). Die weichhäutigen Ventralstrukturen (Antennen, Spaltbeine, ventrale Körperdecke) sind paläontologisch nur äußerst selten überliefeft.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/4340678" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="0e86fd3c987bc76bc179056831664ee9" rel="nofollow" data-download="{"attachment_id":44287996,"asset_id":4340678,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/44287996/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3042744" href="https://univie.academia.edu/MatthiasSvojtka">Matthias Svojtka</a><script data-card-contents-for-user="3042744" type="text/json">{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}</script></span></span></li><li class="js-paper-rank-work_4340678 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="4340678"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 4340678, container: ".js-paper-rank-work_4340678", }); });</script></li><li class="js-percentile-work_4340678 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 4340678; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_4340678"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_4340678 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="4340678"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 4340678; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=4340678]").text(description); $(".js-view-count-work_4340678").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_4340678").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="4340678"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">2</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a><script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=4340678]'), work: {"id":4340678,"title":"Trilobiten, Dreilapper","created_at":"2013-08-27T05:10:56.490-07:00","url":"https://www.academia.edu/4340678/Trilobiten_Dreilapper?f_ri=24357","dom_id":"work_4340678","summary":"Trilobiten sind eine ausgestorbene, rein auf das Erdaltefium (Paläozoikum) beschränkte Gruppe mariner Arthropoden (Gliedertiere). Heute noch lebende Arthropoden sind die Crustacea (Krebstiere), die Chelicerata (Spinnentiere), die Myriapoda (Tausendfüßler) und die lnsecta (Insekten). Trilobiten sind vom unteren Karnbrium (520 Mio. Jahre vor heute) bis in das obere Perm (255 Mio. Jahre vor heute) nachgewiesen. Ihr Panzer besteht, wie auch bei anderen Gliedeftieren, aus Chitin und Proteinen, allerdings werden bei den Trilobiten Calciumsalze in die Cuticula eingelagert (sie wird ,,calcifizieti\"), wodurch sich ihre fossi le Erhaltungsftihigkeit wesentlich erhöht. Die Trilobiten bilden folglich die weitaus wichtigste und am besten überliefefte Gruppe paläozoischer Arthropoden. Durch ihren großen Formenund Individuenreichtum, zusalnmen mit hoher Evolutionsrate und meist guter Bestimmbarkeit stellen sie wichtige Leitfossilien in Kambrium und Ordovicium dar, später sind sie nur mehr von lokal-stratigraphischer Bede utung. MoRpnolocrn DES DoRs¡.lpaNznRs Calcifizierte Panzerteile sind die gesamte Dorsalseite (Rückenseite), der sogenannte Urnschlag (ventrale randliche Foftsetzung des Panzers) und das Hypostom (präorale Mundplatte). Die weichhäutigen Ventralstrukturen (Antennen, Spaltbeine, ventrale Körperdecke) sind paläontologisch nur äußerst selten überliefeft.","downloadable_attachments":[{"id":44287996,"asset_id":4340678,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_8950201" data-work_id="8950201" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/8950201/Trilobiten_Sammeln_und_Bestimmen">Trilobiten. Sammeln und Bestimmen</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/8950201" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="c295f1f79fcb790bb157eaa88e72071e" rel="nofollow" data-download="{"attachment_id":35269555,"asset_id":8950201,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/35269555/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3042744" href="https://univie.academia.edu/MatthiasSvojtka">Matthias Svojtka</a><script data-card-contents-for-user="3042744" type="text/json">{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}</script></span></span></li><li class="js-paper-rank-work_8950201 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="8950201"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 8950201, container: ".js-paper-rank-work_8950201", }); });</script></li><li class="js-percentile-work_8950201 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 8950201; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_8950201"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_8950201 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="8950201"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 8950201; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=8950201]").text(description); $(".js-view-count-work_8950201").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_8950201").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="8950201"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">3</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a>, <script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="94388" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobite">Trilobite</a><script data-card-contents-for-ri="94388" type="text/json">{"id":94388,"name":"Trilobite","url":"https://www.academia.edu/Documents/in/Trilobite?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=8950201]'), work: {"id":8950201,"title":"Trilobiten. Sammeln und Bestimmen","created_at":"2014-10-24T21:12:31.052-07:00","url":"https://www.academia.edu/8950201/Trilobiten_Sammeln_und_Bestimmen?f_ri=24357","dom_id":"work_8950201","summary":null,"downloadable_attachments":[{"id":35269555,"asset_id":8950201,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":94388,"name":"Trilobite","url":"https://www.academia.edu/Documents/in/Trilobite?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_369069" data-work_id="369069" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/369069/LATEST_EARLY_TO_EARLY_MIDDLE_DEVONIAN_TRILOBITES_FROM_THE_ERBENOCHILE_BED_JBEL_ISSOUMOUR_SOUTHEASTERN_MOROCCO">LATEST EARLY TO EARLY MIDDLE DEVONIAN TRILOBITES FROM THE ERBENOCHILE BED, JBEL ISSOUMOUR, SOUTHEASTERN MOROCCO</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/369069" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="67c7912dffc71d2af71e92b4609de653" rel="nofollow" data-download="{"attachment_id":1809825,"asset_id":369069,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/1809825/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="171759" href="https://independent.academia.edu/GibbStacey">Stacey Gibb</a><script data-card-contents-for-user="171759" type="text/json">{"id":171759,"first_name":"Stacey","last_name":"Gibb","domain_name":"independent","page_name":"GibbStacey","display_name":"Stacey Gibb","profile_url":"https://independent.academia.edu/GibbStacey?f_ri=24357","photo":"https://0.academia-photos.com/171759/43080/4170902/s65_stacey.gibb.jpg"}</script></span></span></li><li class="js-paper-rank-work_369069 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="369069"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 369069, container: ".js-paper-rank-work_369069", }); });</script></li><li class="js-percentile-work_369069 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 369069; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_369069"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_369069 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="369069"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 369069; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=369069]").text(description); $(".js-view-count-work_369069").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_369069").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="369069"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">5</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="169" rel="nofollow" href="https://www.academia.edu/Documents/in/Systematics_Taxonomy_">Systematics (Taxonomy)</a>, <script data-card-contents-for-ri="169" type="text/json">{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="13684" rel="nofollow" href="https://www.academia.edu/Documents/in/Morocco">Morocco</a>, <script data-card-contents-for-ri="13684" type="text/json">{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="33576" rel="nofollow" href="https://www.academia.edu/Documents/in/Invertebrate_Paleontology">Invertebrate Paleontology</a><script data-card-contents-for-ri="33576" type="text/json">{"id":33576,"name":"Invertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Paleontology?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=369069]'), work: {"id":369069,"title":"LATEST EARLY TO EARLY MIDDLE DEVONIAN TRILOBITES FROM THE ERBENOCHILE BED, JBEL ISSOUMOUR, SOUTHEASTERN MOROCCO","created_at":"2010-11-15T09:20:14.155-08:00","url":"https://www.academia.edu/369069/LATEST_EARLY_TO_EARLY_MIDDLE_DEVONIAN_TRILOBITES_FROM_THE_ERBENOCHILE_BED_JBEL_ISSOUMOUR_SOUTHEASTERN_MOROCCO?f_ri=24357","dom_id":"work_369069","summary":null,"downloadable_attachments":[{"id":1809825,"asset_id":369069,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":171759,"first_name":"Stacey","last_name":"Gibb","domain_name":"independent","page_name":"GibbStacey","display_name":"Stacey Gibb","profile_url":"https://independent.academia.edu/GibbStacey?f_ri=24357","photo":"https://0.academia-photos.com/171759/43080/4170902/s65_stacey.gibb.jpg"}],"research_interests":[{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357","nofollow":true},{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":33576,"name":"Invertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Paleontology?f_ri=24357","nofollow":true},{"id":76748,"name":"Devonian","url":"https://www.academia.edu/Documents/in/Devonian?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_30185201" data-work_id="30185201" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/30185201/Taphonomy_and_paleoecology_of_the_Middle_Cambrian_Series_3_formations_in_Utahs_West_Desert_recent_finds_and_new_data">Taphonomy and paleoecology of the "Middle" Cambrian (Series 3) formations in Utah's West Desert: recent finds and new data</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The middle Cambrian succession of Utah’s West Desert offers an outstanding record of one of the most important periods in Earth history, and in recent decades it has provided one of the most important faunal records of this time interval... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_30185201" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The middle Cambrian succession of Utah’s West Desert offers an outstanding record of one of the most important periods in Earth history, and in recent decades it has provided one of the most important faunal records of this time interval in the world. A total of 18 formations comprise the middle Cambrian (Series 3) succession of the West Desert and, together, they span the entirety of the series, with the Eokochaspis through Cedaria trilobite zones represented. For more than a century the middle Cambrian strata of the area have been well-known for their abundant, diverse, and well-preserved trilobites, which are especially prominent in the Wheeler, Marjum, and Weeks formations. The paleoenvironmental conditions that promoted the preservation of articulated trilobites and other mineralized organisms also contributed to soft-bodied preservation of Burgess Shale-type biotas in those units. The particularly rich fossil record from this area includes endemic taxa that are unique to the region as well as those found elsewhere in Laurentia and on other paleocontinents. In recent years, understanding of the middle Cambrian biotas from western Utah has increased as new taxa, including many soft-bodied forms, have been discovered. In the past year alone, species diversity from the Wheeler, Marjum, and Weeks formations has been expanded considerably. Taxa new to the Wheeler Formation include the protomonaxonid Lenica cf. hindei, the vetulocystid Thylacocercus ignota, the hemichordate Sphenoecium wheelerensis, and the conulariid Cambrorhytium sp.  Those from the Marjum Formation include the arthropod Dytikosicula desmatae, the cambroernid Eldonia ludwigi, and the new pterobranch hemichordate, Sphenoecium wheelerensis. The new arthropod Falcatamacaris bellua from the Weeks Formation joins two other new arthropod taxa described since 2013. The steady increase in taxonomic diversity of these units has contributed greatly to understanding the complex ecosystems that thrived in this region during the middle Cambrian. Recent work has also shed light on the living environments and circumstances surrounding exceptional preservation of the fossil assemblages. The House Range embayment, a deep water trough that first developed at the onset of Wheeler deposition, gradually filled through time, resulting in an overall shallowing upwards sequence and a general decrease in the frequency of soft-bodied preservation.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/30185201" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="d16739a097da75476f27cc10b8070718" rel="nofollow" data-download="{"attachment_id":58579153,"asset_id":30185201,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/58579153/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="5146429" href="https://utahfieldhousenaturalhistoryparkmuseum.academia.edu/JohnFoster">John Foster</a><script data-card-contents-for-user="5146429" type="text/json">{"id":5146429,"first_name":"John","last_name":"Foster","domain_name":"utahfieldhousenaturalhistoryparkmuseum","page_name":"JohnFoster","display_name":"John Foster","profile_url":"https://utahfieldhousenaturalhistoryparkmuseum.academia.edu/JohnFoster?f_ri=24357","photo":"https://0.academia-photos.com/5146429/2260491/7512167/s65_john.foster.jpg"}</script></span></span></li><li class="js-paper-rank-work_30185201 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="30185201"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 30185201, container: ".js-paper-rank-work_30185201", }); });</script></li><li class="js-percentile-work_30185201 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 30185201; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_30185201"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_30185201 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="30185201"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 30185201; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=30185201]").text(description); $(".js-view-count-work_30185201").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_30185201").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="30185201"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="7101" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleoecology">Paleoecology</a>, <script data-card-contents-for-ri="7101" type="text/json">{"id":7101,"name":"Paleoecology","url":"https://www.academia.edu/Documents/in/Paleoecology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="78109" rel="nofollow" href="https://www.academia.edu/Documents/in/Cambrian">Cambrian</a>, <script data-card-contents-for-ri="78109" type="text/json">{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="268973" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobite_taphonomy">Trilobite taphonomy</a><script data-card-contents-for-ri="268973" type="text/json">{"id":268973,"name":"Trilobite taphonomy","url":"https://www.academia.edu/Documents/in/Trilobite_taphonomy?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=30185201]'), work: {"id":30185201,"title":"Taphonomy and paleoecology of the \"Middle\" Cambrian (Series 3) formations in Utah's West Desert: recent finds and new data","created_at":"2016-11-30T14:00:43.333-08:00","url":"https://www.academia.edu/30185201/Taphonomy_and_paleoecology_of_the_Middle_Cambrian_Series_3_formations_in_Utahs_West_Desert_recent_finds_and_new_data?f_ri=24357","dom_id":"work_30185201","summary":"The middle Cambrian succession of Utah’s West Desert offers an outstanding record of one of the most important periods in Earth history, and in recent decades it has provided one of the most important faunal records of this time interval in the world. A total of 18 formations comprise the middle Cambrian (Series 3) succession of the West Desert and, together, they span the entirety of the series, with the Eokochaspis through Cedaria trilobite zones represented. For more than a century the middle Cambrian strata of the area have been well-known for their abundant, diverse, and well-preserved trilobites, which are especially prominent in the Wheeler, Marjum, and Weeks formations. The paleoenvironmental conditions that promoted the preservation of articulated trilobites and other mineralized organisms also contributed to soft-bodied preservation of Burgess Shale-type biotas in those units. The particularly rich fossil record from this area includes endemic taxa that are unique to the region as well as those found elsewhere in Laurentia and on other paleocontinents. In recent years, understanding of the middle Cambrian biotas from western Utah has increased as new taxa, including many soft-bodied forms, have been discovered. In the past year alone, species diversity from the Wheeler, Marjum, and Weeks formations has been expanded considerably. Taxa new to the Wheeler Formation include the protomonaxonid Lenica cf. hindei, the vetulocystid Thylacocercus ignota, the hemichordate Sphenoecium wheelerensis, and the conulariid Cambrorhytium sp. Those from the Marjum Formation include the arthropod Dytikosicula desmatae, the cambroernid Eldonia ludwigi, and the new pterobranch hemichordate, Sphenoecium wheelerensis. The new arthropod Falcatamacaris bellua from the Weeks Formation joins two other new arthropod taxa described since 2013. The steady increase in taxonomic diversity of these units has contributed greatly to understanding the complex ecosystems that thrived in this region during the middle Cambrian. Recent work has also shed light on the living environments and circumstances surrounding exceptional preservation of the fossil assemblages. The House Range embayment, a deep water trough that first developed at the onset of Wheeler deposition, gradually filled through time, resulting in an overall shallowing upwards sequence and a general decrease in the frequency of soft-bodied preservation.","downloadable_attachments":[{"id":58579153,"asset_id":30185201,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":5146429,"first_name":"John","last_name":"Foster","domain_name":"utahfieldhousenaturalhistoryparkmuseum","page_name":"JohnFoster","display_name":"John Foster","profile_url":"https://utahfieldhousenaturalhistoryparkmuseum.academia.edu/JohnFoster?f_ri=24357","photo":"https://0.academia-photos.com/5146429/2260491/7512167/s65_john.foster.jpg"}],"research_interests":[{"id":7101,"name":"Paleoecology","url":"https://www.academia.edu/Documents/in/Paleoecology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true},{"id":268973,"name":"Trilobite taphonomy","url":"https://www.academia.edu/Documents/in/Trilobite_taphonomy?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_213012" data-work_id="213012" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/213012/The_function_of_forks_Isotelus_type_hypostomes_and_trilobite_feeding">The function of forks: Isotelus-type hypostomes and trilobite feeding</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Despite previous investigations, the function of the forked morphology of asaphid trilobite hypostomes is enigmatic. The focus of this study is the large and robust forked hypostome of the largest known genus of trilobite, Isotelus, and... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_213012" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Despite previous investigations, the function of the forked morphology of asaphid trilobite hypostomes is enigmatic. The focus of this study is the large and robust forked hypostome of the largest known genus of trilobite, Isotelus, and the independently-derived forked hypostome of Hypodicranotus, the longest hypostome relative to body size of any trilobite. Although the trilobite hypostome is analogous to the labrum in other arthropods, forked hypostomes lack an obvious modern functional counterpart. The Isotelus hypostome is distinguished from other trilobite hypostomes by closely-spaced terrace ridges on a greatly thickened inner surface of the forked posterior margin, with the scarp of the terrace facing antero-ventrally. This is compatible with a grinding function, suggesting possible limb differentiation to complement this structure. The inner face of the tine (one of the two, prominent, sub-parallel posterior projections) is also unique in that it has a microstructure which is evident in section, running perpendicular to the surface. Macropredatory and filter-feeder roles are ruled out, and previous characterizations of the hypostome as knife-like or serrated are rejected. Its function is incompatible with that of other non-asaphid trilobites with forked hypostomes, like the remopleuridid Hypodicranotus, which lack similar terrace ridges and thickened inner-edge cuticle. □Arthropoda, Asaphida, ecology, functional morphology, Trilobita.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/213012" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="e80e2d7fcb8033994e63f1ddcbe36df1" rel="nofollow" data-download="{"attachment_id":2104011,"asset_id":213012,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/2104011/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="31995" href="https://fredonia.academia.edu/ThomasHegna">Thomas A Hegna</a><script data-card-contents-for-user="31995" type="text/json">{"id":31995,"first_name":"Thomas","last_name":"Hegna","domain_name":"fredonia","page_name":"ThomasHegna","display_name":"Thomas A Hegna","profile_url":"https://fredonia.academia.edu/ThomasHegna?f_ri=24357","photo":"https://0.academia-photos.com/31995/10327/1639061/s65_thomas.hegna.jpg"}</script></span></span></li><li class="js-paper-rank-work_213012 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="213012"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 213012, container: ".js-paper-rank-work_213012", }); });</script></li><li class="js-percentile-work_213012 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 213012; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_213012"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_213012 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="213012"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 213012; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=213012]").text(description); $(".js-view-count-work_213012").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_213012").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="213012"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="162" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleobiology">Paleobiology</a>, <script data-card-contents-for-ri="162" type="text/json">{"id":162,"name":"Paleobiology","url":"https://www.academia.edu/Documents/in/Paleobiology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="4438" rel="nofollow" href="https://www.academia.edu/Documents/in/Functional_Morphology">Functional Morphology</a>, <script data-card-contents-for-ri="4438" type="text/json">{"id":4438,"name":"Functional Morphology","url":"https://www.academia.edu/Documents/in/Functional_Morphology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="57925" rel="nofollow" href="https://www.academia.edu/Documents/in/Arthropoda">Arthropoda</a><script data-card-contents-for-ri="57925" type="text/json">{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=213012]'), work: {"id":213012,"title":"The function of forks: Isotelus-type hypostomes and trilobite feeding","created_at":"2010-02-06T04:48:25.992-08:00","url":"https://www.academia.edu/213012/The_function_of_forks_Isotelus_type_hypostomes_and_trilobite_feeding?f_ri=24357","dom_id":"work_213012","summary":"Despite previous investigations, the function of the forked morphology of asaphid trilobite hypostomes is enigmatic. The focus of this study is the large and robust forked hypostome of the largest known genus of trilobite, Isotelus, and the independently-derived forked hypostome of Hypodicranotus, the longest hypostome relative to body size of any trilobite. Although the trilobite hypostome is analogous to the labrum in other arthropods, forked hypostomes lack an obvious modern functional counterpart. The Isotelus hypostome is distinguished from other trilobite hypostomes by closely-spaced terrace ridges on a greatly thickened inner surface of the forked posterior margin, with the scarp of the terrace facing antero-ventrally. This is compatible with a grinding function, suggesting possible limb differentiation to complement this structure. The inner face of the tine (one of the two, prominent, sub-parallel posterior projections) is also unique in that it has a microstructure which is evident in section, running perpendicular to the surface. Macropredatory and filter-feeder roles are ruled out, and previous characterizations of the hypostome as knife-like or serrated are rejected. Its function is incompatible with that of other non-asaphid trilobites with forked hypostomes, like the remopleuridid Hypodicranotus, which lack similar terrace ridges and thickened inner-edge cuticle. □Arthropoda, Asaphida, ecology, functional morphology, Trilobita.","downloadable_attachments":[{"id":2104011,"asset_id":213012,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":31995,"first_name":"Thomas","last_name":"Hegna","domain_name":"fredonia","page_name":"ThomasHegna","display_name":"Thomas A Hegna","profile_url":"https://fredonia.academia.edu/ThomasHegna?f_ri=24357","photo":"https://0.academia-photos.com/31995/10327/1639061/s65_thomas.hegna.jpg"}],"research_interests":[{"id":162,"name":"Paleobiology","url":"https://www.academia.edu/Documents/in/Paleobiology?f_ri=24357","nofollow":true},{"id":4438,"name":"Functional Morphology","url":"https://www.academia.edu/Documents/in/Functional_Morphology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_35471467" data-work_id="35471467" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/35471467/Sofia_Pereira_Miguel_Pires_Armando_Marques_Guedes_et_al_2017_The_illaenid_trilobites_Vysocania_Van%C3%ACk_and_Vok%C3%A1%C3%A8_1997_and_Octillaenus_Barrande_1846_from_the_Upper_Ordovician_of_the_Czech_Republic_Portugal_Spain_and_Morocco_Bulletin_of_Geosciences_92_4_Czech_Geological_Survey_Prague">Sofia Pereira, Miguel Pires, Armando Marques Guedes, et al., (2017), The illaenid trilobites Vysocania (Vanìk & Vokáè, 1997) and Octillaenus (Barrande, 1846) from the Upper Ordovician of the Czech Republic, Portugal, Spain and Morocco, Bulletin of Geosciences 92(4), Czech Geological Survey, Prague.</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The illaenid trilobite Vysocania is widely represented in the Upper Ordovician of the Czech Republic, Portugal and Spain, and is one of the most characteristic taxa in the high-latitude peri-Gondwana palaeobiogeographical region to which... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_35471467" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The illaenid trilobite Vysocania is widely represented in the Upper Ordovician of the Czech Republic, Portugal and Spain, and is one of the most characteristic taxa in the high-latitude peri-Gondwana palaeobiogeographical region to which it is endemic. Three species of the genus that were formerly assigned to Stenopareia and Zetillaenus, from the Czech Republic and Spain respectively, are herein revised, and a new species is described from the Czech Republic. The genus Octillaenus, of which a new species is described from the Upper Ordovician of Morocco, is considered to have arisen from Vysocania through paedomorphic (neotenic) processes. The relationships between Vysocania, Octillaenus, Stenopareia and Zetillaenus are reviewed and the criteria used in the definition of these taxa discussed. Species assigned to Vysocania are V. vaneki (type-species), V. iberica, V. moraveci sp. nov. and V. panderi; species assigned to Octillaenus are O. hisingeri (type-species) and O. marocanus sp. nov. Vysocania appears for the first time in the lower Berounian (Sandbian) and has its last undoubted record in the upper Berounian (upper Katian); Octillaenus is presently restricted to the Kralodvorian (upper Katian). •</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/35471467" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="d98f5be3fd15b36f057c3426d5401e3c" rel="nofollow" data-download="{"attachment_id":55333814,"asset_id":35471467,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/55333814/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="134181" href="https://cria.academia.edu/ArmandoMarquesGuedes">Armando Marques-Guedes</a><script data-card-contents-for-user="134181" type="text/json">{"id":134181,"first_name":"Armando","last_name":"Marques-Guedes","domain_name":"cria","page_name":"ArmandoMarquesGuedes","display_name":"Armando Marques-Guedes","profile_url":"https://cria.academia.edu/ArmandoMarquesGuedes?f_ri=24357","photo":"https://0.academia-photos.com/134181/3401094/148494125/s65_armando.marques-guedes.png"}</script></span></span></li><li class="js-paper-rank-work_35471467 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="35471467"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 35471467, container: ".js-paper-rank-work_35471467", }); });</script></li><li class="js-percentile-work_35471467 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 35471467; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_35471467"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_35471467 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="35471467"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 35471467; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=35471467]").text(description); $(".js-view-count-work_35471467").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_35471467").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="35471467"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">74</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="128" rel="nofollow" href="https://www.academia.edu/Documents/in/History">History</a>, <script data-card-contents-for-ri="128" type="text/json">{"id":128,"name":"History","url":"https://www.academia.edu/Documents/in/History?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="136" rel="nofollow" href="https://www.academia.edu/Documents/in/Cultural_History">Cultural History</a>, <script data-card-contents-for-ri="136" type="text/json">{"id":136,"name":"Cultural History","url":"https://www.academia.edu/Documents/in/Cultural_History?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="155" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolutionary_Biology">Evolutionary Biology</a>, <script data-card-contents-for-ri="155" type="text/json">{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="158" rel="nofollow" href="https://www.academia.edu/Documents/in/Marine_Biology">Marine Biology</a><script data-card-contents-for-ri="158" type="text/json">{"id":158,"name":"Marine Biology","url":"https://www.academia.edu/Documents/in/Marine_Biology?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=35471467]'), work: {"id":35471467,"title":"Sofia Pereira, Miguel Pires, Armando Marques Guedes, et al., (2017), The illaenid trilobites Vysocania (Vanìk \u0026 Vokáè, 1997) and Octillaenus (Barrande, 1846) from the Upper Ordovician of the Czech Republic, Portugal, Spain and Morocco, Bulletin of Geosciences 92(4), Czech Geological Survey, Prague.","created_at":"2017-12-19T14:34:47.150-08:00","url":"https://www.academia.edu/35471467/Sofia_Pereira_Miguel_Pires_Armando_Marques_Guedes_et_al_2017_The_illaenid_trilobites_Vysocania_Van%C3%ACk_and_Vok%C3%A1%C3%A8_1997_and_Octillaenus_Barrande_1846_from_the_Upper_Ordovician_of_the_Czech_Republic_Portugal_Spain_and_Morocco_Bulletin_of_Geosciences_92_4_Czech_Geological_Survey_Prague?f_ri=24357","dom_id":"work_35471467","summary":"The illaenid trilobite Vysocania is widely represented in the Upper Ordovician of the Czech Republic, Portugal and Spain, and is one of the most characteristic taxa in the high-latitude peri-Gondwana palaeobiogeographical region to which it is endemic. Three species of the genus that were formerly assigned to Stenopareia and Zetillaenus, from the Czech Republic and Spain respectively, are herein revised, and a new species is described from the Czech Republic. The genus Octillaenus, of which a new species is described from the Upper Ordovician of Morocco, is considered to have arisen from Vysocania through paedomorphic (neotenic) processes. The relationships between Vysocania, Octillaenus, Stenopareia and Zetillaenus are reviewed and the criteria used in the definition of these taxa discussed. Species assigned to Vysocania are V. vaneki (type-species), V. iberica, V. moraveci sp. nov. and V. panderi; species assigned to Octillaenus are O. hisingeri (type-species) and O. marocanus sp. nov. Vysocania appears for the first time in the lower Berounian (Sandbian) and has its last undoubted record in the upper Berounian (upper Katian); Octillaenus is presently restricted to the Kralodvorian (upper Katian). •","downloadable_attachments":[{"id":55333814,"asset_id":35471467,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":134181,"first_name":"Armando","last_name":"Marques-Guedes","domain_name":"cria","page_name":"ArmandoMarquesGuedes","display_name":"Armando Marques-Guedes","profile_url":"https://cria.academia.edu/ArmandoMarquesGuedes?f_ri=24357","photo":"https://0.academia-photos.com/134181/3401094/148494125/s65_armando.marques-guedes.png"}],"research_interests":[{"id":128,"name":"History","url":"https://www.academia.edu/Documents/in/History?f_ri=24357","nofollow":true},{"id":136,"name":"Cultural History","url":"https://www.academia.edu/Documents/in/Cultural_History?f_ri=24357","nofollow":true},{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true},{"id":158,"name":"Marine Biology","url":"https://www.academia.edu/Documents/in/Marine_Biology?f_ri=24357","nofollow":true},{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357"},{"id":289,"name":"Palaeogeography","url":"https://www.academia.edu/Documents/in/Palaeogeography?f_ri=24357"},{"id":292,"name":"Palaeoclimatology","url":"https://www.academia.edu/Documents/in/Palaeoclimatology?f_ri=24357"},{"id":392,"name":"Archaeology","url":"https://www.academia.edu/Documents/in/Archaeology?f_ri=24357"},{"id":398,"name":"Paleoanthropology","url":"https://www.academia.edu/Documents/in/Paleoanthropology?f_ri=24357"},{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science?f_ri=24357"},{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357"},{"id":803,"name":"Philosophy","url":"https://www.academia.edu/Documents/in/Philosophy?f_ri=24357"},{"id":922,"name":"Education","url":"https://www.academia.edu/Documents/in/Education?f_ri=24357"},{"id":1237,"name":"Social Sciences","url":"https://www.academia.edu/Documents/in/Social_Sciences?f_ri=24357"},{"id":1723,"name":"Palaeoenvironment","url":"https://www.academia.edu/Documents/in/Palaeoenvironment?f_ri=24357"},{"id":2222,"name":"Portuguese Studies","url":"https://www.academia.edu/Documents/in/Portuguese_Studies?f_ri=24357"},{"id":2258,"name":"Paleoclimatology","url":"https://www.academia.edu/Documents/in/Paleoclimatology?f_ri=24357"},{"id":2621,"name":"Higher Education","url":"https://www.academia.edu/Documents/in/Higher_Education?f_ri=24357"},{"id":3126,"name":"Political Ecology","url":"https://www.academia.edu/Documents/in/Political_Ecology?f_ri=24357"},{"id":3165,"name":"Maritime History","url":"https://www.academia.edu/Documents/in/Maritime_History?f_ri=24357"},{"id":3723,"name":"History of Science","url":"https://www.academia.edu/Documents/in/History_of_Science?f_ri=24357"},{"id":4035,"name":"Marine Ecology","url":"https://www.academia.edu/Documents/in/Marine_Ecology?f_ri=24357"},{"id":4267,"name":"Community Ecology","url":"https://www.academia.edu/Documents/in/Community_Ecology?f_ri=24357"},{"id":4438,"name":"Functional Morphology","url":"https://www.academia.edu/Documents/in/Functional_Morphology?f_ri=24357"},{"id":4558,"name":"Invertebrate Biology","url":"https://www.academia.edu/Documents/in/Invertebrate_Biology?f_ri=24357"},{"id":5031,"name":"Exoskeletons","url":"https://www.academia.edu/Documents/in/Exoskeletons?f_ri=24357"},{"id":7076,"name":"Taxonomy","url":"https://www.academia.edu/Documents/in/Taxonomy?f_ri=24357"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology?f_ri=24357"},{"id":7805,"name":"Marine Conservation","url":"https://www.academia.edu/Documents/in/Marine_Conservation?f_ri=24357"},{"id":8014,"name":"Life Sciences","url":"https://www.academia.edu/Documents/in/Life_Sciences?f_ri=24357"},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology?f_ri=24357"},{"id":9941,"name":"Czech \u0026 Slovak Studies","url":"https://www.academia.edu/Documents/in/Czech_and_Slovak_Studies?f_ri=24357"},{"id":10866,"name":"Morphology","url":"https://www.academia.edu/Documents/in/Morphology?f_ri=24357"},{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357"},{"id":16441,"name":"Marine Science","url":"https://www.academia.edu/Documents/in/Marine_Science?f_ri=24357"},{"id":17472,"name":"Palaeoecology","url":"https://www.academia.edu/Documents/in/Palaeoecology?f_ri=24357"},{"id":17635,"name":"Marine biodiversity","url":"https://www.academia.edu/Documents/in/Marine_biodiversity?f_ri=24357"},{"id":18594,"name":"Evolutionary Ecology","url":"https://www.academia.edu/Documents/in/Evolutionary_Ecology?f_ri=24357"},{"id":22136,"name":"Palaeopathology","url":"https://www.academia.edu/Documents/in/Palaeopathology?f_ri=24357"},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357"},{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357"},{"id":28845,"name":"Palaeobiology","url":"https://www.academia.edu/Documents/in/Palaeobiology?f_ri=24357"},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":30926,"name":"Palaeography","url":"https://www.academia.edu/Documents/in/Palaeography?f_ri=24357"},{"id":32759,"name":"Palaeobotany","url":"https://www.academia.edu/Documents/in/Palaeobotany?f_ri=24357"},{"id":33576,"name":"Invertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Paleontology?f_ri=24357"},{"id":37270,"name":"Biology Education","url":"https://www.academia.edu/Documents/in/Biology_Education?f_ri=24357"},{"id":40516,"name":"Spain","url":"https://www.academia.edu/Documents/in/Spain?f_ri=24357"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences?f_ri=24357"},{"id":49837,"name":"Historia","url":"https://www.academia.edu/Documents/in/Historia?f_ri=24357"},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357"},{"id":78133,"name":"Gondwana","url":"https://www.academia.edu/Documents/in/Gondwana?f_ri=24357"},{"id":79166,"name":"Ordovician","url":"https://www.academia.edu/Documents/in/Ordovician?f_ri=24357"},{"id":83925,"name":"Biologia","url":"https://www.academia.edu/Documents/in/Biologia?f_ri=24357"},{"id":86369,"name":"Ecologia","url":"https://www.academia.edu/Documents/in/Ecologia?f_ri=24357"},{"id":90326,"name":"Fossils","url":"https://www.academia.edu/Documents/in/Fossils?f_ri=24357"},{"id":94388,"name":"Trilobite","url":"https://www.academia.edu/Documents/in/Trilobite?f_ri=24357"},{"id":98467,"name":"Cambrian-Devonian trilobites","url":"https://www.academia.edu/Documents/in/Cambrian-Devonian_trilobites?f_ri=24357"},{"id":136165,"name":"Upper Ordovician","url":"https://www.academia.edu/Documents/in/Upper_Ordovician?f_ri=24357"},{"id":151753,"name":"New Species","url":"https://www.academia.edu/Documents/in/New_Species?f_ri=24357"},{"id":160861,"name":"Morroco","url":"https://www.academia.edu/Documents/in/Morroco?f_ri=24357"},{"id":181077,"name":"Trilobite ontogeny","url":"https://www.academia.edu/Documents/in/Trilobite_ontogeny?f_ri=24357"},{"id":199005,"name":"Palaeoethnobotany","url":"https://www.academia.edu/Documents/in/Palaeoethnobotany?f_ri=24357"},{"id":224606,"name":"Ecología","url":"https://www.academia.edu/Documents/in/Ecolog%C3%ADa?f_ri=24357"},{"id":240084,"name":"Gondwana Research","url":"https://www.academia.edu/Documents/in/Gondwana_Research?f_ri=24357"},{"id":245668,"name":"Arthropods","url":"https://www.academia.edu/Documents/in/Arthropods?f_ri=24357"},{"id":268973,"name":"Trilobite taphonomy","url":"https://www.academia.edu/Documents/in/Trilobite_taphonomy?f_ri=24357"},{"id":591254,"name":"Gondwana Sediments","url":"https://www.academia.edu/Documents/in/Gondwana_Sediments?f_ri=24357"},{"id":653256,"name":"Ordovician Trilobites","url":"https://www.academia.edu/Documents/in/Ordovician_Trilobites?f_ri=24357"},{"id":724296,"name":"Ordovician Stratigraphy","url":"https://www.academia.edu/Documents/in/Ordovician_Stratigraphy?f_ri=24357"},{"id":741778,"name":"Late Ordovician glaciation","url":"https://www.academia.edu/Documents/in/Late_Ordovician_glaciation?f_ri=24357"},{"id":752663,"name":"Ordovician Paleoecology","url":"https://www.academia.edu/Documents/in/Ordovician_Paleoecology?f_ri=24357"},{"id":814939,"name":"Gondwana margin","url":"https://www.academia.edu/Documents/in/Gondwana_margin?f_ri=24357"},{"id":1011672,"name":"West Gondwana","url":"https://www.academia.edu/Documents/in/West_Gondwana?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_37843831" data-work_id="37843831" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/37843831/MAKALAH_TRILOBITA_YVESBS42">MAKALAH TRILOBITA YVESBS42</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Puji dan syukur penulis panjatkan kehadiran Tuhan Yang Maha Esa, karena atas berkat dan karunia-Nya penulis dapat menyelesaikan makalah ini dengan judul " Kelas Trilobita " untuk memenuhi tugas pada mata kuliah Paloentologi. Dalam... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_37843831" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Puji dan syukur penulis panjatkan kehadiran Tuhan Yang Maha Esa, karena atas berkat dan karunia-Nya penulis dapat menyelesaikan makalah ini dengan judul " Kelas Trilobita " untuk memenuhi tugas pada mata kuliah Paloentologi. Dalam penulisan makalah ini, penulis banyak mendapatkan bantuan dan bimbingan serta dorongan dari berbagai pihak. Penulis menyadari bahwa dalam penulisan ini masih terdapat banyak kesalahan maupun kekurangan, baik dalam susunan kata – kata, kalimat maupun bahasannya karena terbatasnya</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/37843831" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="b8473b73b2d216ceb5df08ce9cf0bc79" rel="nofollow" data-download="{"attachment_id":57847266,"asset_id":37843831,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/57847266/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="67762388" href="https://mnhn.academia.edu/YvesSusilo">Yves Belgiaswara Susilo</a><script data-card-contents-for-user="67762388" type="text/json">{"id":67762388,"first_name":"Yves Belgiaswara","last_name":"Susilo","domain_name":"mnhn","page_name":"YvesSusilo","display_name":"Yves Belgiaswara Susilo","profile_url":"https://mnhn.academia.edu/YvesSusilo?f_ri=24357","photo":"https://0.academia-photos.com/67762388/17617305/17670795/s65_yves.belgiaswara.jpg"}</script></span></span></li><li class="js-paper-rank-work_37843831 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="37843831"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 37843831, container: ".js-paper-rank-work_37843831", }); });</script></li><li class="js-percentile-work_37843831 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 37843831; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_37843831"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_37843831 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="37843831"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 37843831; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=37843831]").text(description); $(".js-view-count-work_37843831").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_37843831").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="37843831"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">10</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="406" rel="nofollow" href="https://www.academia.edu/Documents/in/Geology">Geology</a>, <script data-card-contents-for-ri="406" type="text/json">{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17215" rel="nofollow" href="https://www.academia.edu/Documents/in/Micropaleontology">Micropaleontology</a>, <script data-card-contents-for-ri="17215" type="text/json">{"id":17215,"name":"Micropaleontology","url":"https://www.academia.edu/Documents/in/Micropaleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=37843831]'), work: {"id":37843831,"title":"MAKALAH TRILOBITA YVESBS42","created_at":"2018-11-24T20:49:10.871-08:00","url":"https://www.academia.edu/37843831/MAKALAH_TRILOBITA_YVESBS42?f_ri=24357","dom_id":"work_37843831","summary":"Puji dan syukur penulis panjatkan kehadiran Tuhan Yang Maha Esa, karena atas berkat dan karunia-Nya penulis dapat menyelesaikan makalah ini dengan judul \" Kelas Trilobita \" untuk memenuhi tugas pada mata kuliah Paloentologi. Dalam penulisan makalah ini, penulis banyak mendapatkan bantuan dan bimbingan serta dorongan dari berbagai pihak. Penulis menyadari bahwa dalam penulisan ini masih terdapat banyak kesalahan maupun kekurangan, baik dalam susunan kata – kata, kalimat maupun bahasannya karena terbatasnya","downloadable_attachments":[{"id":57847266,"asset_id":37843831,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":67762388,"first_name":"Yves Belgiaswara","last_name":"Susilo","domain_name":"mnhn","page_name":"YvesSusilo","display_name":"Yves Belgiaswara Susilo","profile_url":"https://mnhn.academia.edu/YvesSusilo?f_ri=24357","photo":"https://0.academia-photos.com/67762388/17617305/17670795/s65_yves.belgiaswara.jpg"}],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357","nofollow":true},{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":17215,"name":"Micropaleontology","url":"https://www.academia.edu/Documents/in/Micropaleontology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":24375,"name":"Vertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Vertebrate_Paleontology?f_ri=24357"},{"id":94388,"name":"Trilobite","url":"https://www.academia.edu/Documents/in/Trilobite?f_ri=24357"},{"id":166008,"name":"Artropodos","url":"https://www.academia.edu/Documents/in/Artropodos?f_ri=24357"},{"id":366206,"name":"Cambrian and Precambrian","url":"https://www.academia.edu/Documents/in/Cambrian_and_Precambrian?f_ri=24357"},{"id":734523,"name":"Trisakti","url":"https://www.academia.edu/Documents/in/Trisakti?f_ri=24357"},{"id":1458479,"name":"Paelontology","url":"https://www.academia.edu/Documents/in/Paelontology?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_4257006" data-work_id="4257006" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/4257006/AVAILABLE_GENERIC_NAMES_FOR_TRILOBITES">AVAILABLE GENERIC NAMES FOR TRILOBITES</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Aconsolidated list of available generic names introduced since the beginning of the binomial nomenclature system for trilobites is presented for the first time. Each entry is accompanied by the author and date of availability, by the... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_4257006" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Aconsolidated list of available generic names introduced since the beginning of the binomial <br />nomenclature system for trilobites is presented for the first time. Each entry is accompanied <br />by the author and date of availability, by the name of the type species, by a lithostratigraphic <br />or biostratigraphic and geographic reference for the type species, by a family assignment and <br />by an age indication of the type species at the Period level (e.g. MCAM, LDEV). A second <br />listing of these names is taxonomically arranged in families with the families listed <br />alphabetically, higher level classification being outside the scope of this work. We also <br />provide a list of names that have apparently been applied to trilobites but which remain <br />nomina nuda within the ICZN definition.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/4257006" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="9ff434722e99c038b21832f0a1f5021c" rel="nofollow" data-download="{"attachment_id":31734137,"asset_id":4257006,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/31734137/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="2548345" href="https://ulisboa.academia.edu/MiguelCaldeiraPais">Miguel Caldeira Pais - Mediterranic™</a><script data-card-contents-for-user="2548345" type="text/json">{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}</script></span></span></li><li class="js-paper-rank-work_4257006 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="4257006"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 4257006, container: ".js-paper-rank-work_4257006", }); });</script></li><li class="js-percentile-work_4257006 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 4257006; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_4257006"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_4257006 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="4257006"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 4257006; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=4257006]").text(description); $(".js-view-count-work_4257006").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_4257006").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="4257006"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">3</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="169" rel="nofollow" href="https://www.academia.edu/Documents/in/Systematics_Taxonomy_">Systematics (Taxonomy)</a>, <script data-card-contents-for-ri="169" type="text/json">{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=4257006]'), work: {"id":4257006,"title":"AVAILABLE GENERIC NAMES FOR TRILOBITES","created_at":"2013-08-16T12:43:34.697-07:00","url":"https://www.academia.edu/4257006/AVAILABLE_GENERIC_NAMES_FOR_TRILOBITES?f_ri=24357","dom_id":"work_4257006","summary":"Aconsolidated list of available generic names introduced since the beginning of the binomial\r\nnomenclature system for trilobites is presented for the first time. Each entry is accompanied\r\nby the author and date of availability, by the name of the type species, by a lithostratigraphic\r\nor biostratigraphic and geographic reference for the type species, by a family assignment and\r\nby an age indication of the type species at the Period level (e.g. MCAM, LDEV). A second\r\nlisting of these names is taxonomically arranged in families with the families listed\r\nalphabetically, higher level classification being outside the scope of this work. We also\r\nprovide a list of names that have apparently been applied to trilobites but which remain\r\nnomina nuda within the ICZN definition.","downloadable_attachments":[{"id":31734137,"asset_id":4257006,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}],"research_interests":[{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357","nofollow":true},{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_41351603" data-work_id="41351603" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/41351603/Die_Riesen_Phacopiden_aus_dem_Maider_SE_marokkanische_Pra_Sahara_STRUVE_W_1995_">Die Riesen-Phacopiden aus dem Maider, SE-marokkanische Pra-Sahara (STRUVE, W., 1995)</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Contributions to the knowledge of Phacopina (Trilobita). The giant phacopids From Maider, SE-Moroccan Pre-Sahara. The giant trilobites from the Middle Devonian of the Maider area - which attain a total length of 12-17 cm. and... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_41351603" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Contributions to the knowledge of Phacopina (Trilobita). The giant phacopids From Maider, SE-Moroccan Pre-Sahara.<br /><br />The giant trilobites from the Middle Devonian of the Maider area - which attain a total length of 12-17 cm. and occasionally up to 20 cm. - are here assigned to the Tribus Geosopini STRUVE 1984 of the Subfamilia Phacopinae WAWLE & CORDA 1847. They belong to the "North African" genus Drotops STRUVE 1990, represented by the taxa megalomanicus megalomanicus STRUVE 1990, megalomanicus subornatus n. subsp., and armatus n. sp. as well by the "Central European" (sub-)genus Pedinoparops (Hypsipariops) STRUVE 1982, represented by the species vagabundus STRUVE 1990. - The introductory part of this paper treats with the marketing behavior of collectors and dealers, first attempts at determination, and with the problem of falsifications and/or "artifacts". The taxonomic-systematic part is introduced by a discussion of morphological features essential for generic determination. The descriptions are supported by a key for (sub-) generic assignment of Rhenish "aspect" phacopids and by a very simplified key for discrimination of "Maider Giants". - The evaluative part of the paper deals with the biostratinomic and palaeoecologic interpretation of the "Maider Giants" beds. Establishment  of geological age(s) of the collecting site(s) is attempted by conodont and brachiopod evidence, as well as by the evaluation of the developmental stage of the species vagabundus within the phylogeny of Pedinopariops (Hypsipariops). Placozoogeographical affinities are discussed - The appendix treats with the subgeneric sub-division of Phacops EMMRICH 1839 [cited tn the key], with Atryparia eta n. sp. [Zone brachiopod, mentioned in the stratigraphic discussion] and with Chondrites praetargionii n. ichnosp.  [facies indicator, metioned in the palaeoecological-palaeobathymetrical discusson].</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/41351603" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="54f49bb342e9ae26f31210ca635583b0" rel="nofollow" data-download="{"attachment_id":61553285,"asset_id":41351603,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/61553285/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="2548345" href="https://ulisboa.academia.edu/MiguelCaldeiraPais">Miguel Caldeira Pais - Mediterranic™</a><script data-card-contents-for-user="2548345" type="text/json">{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}</script></span></span></li><li class="js-paper-rank-work_41351603 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="41351603"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 41351603, container: ".js-paper-rank-work_41351603", }); });</script></li><li class="js-percentile-work_41351603 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 41351603; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_41351603"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_41351603 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="41351603"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 41351603; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=41351603]").text(description); $(".js-view-count-work_41351603").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_41351603").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="41351603"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">8</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="406" rel="nofollow" href="https://www.academia.edu/Documents/in/Geology">Geology</a>, <script data-card-contents-for-ri="406" type="text/json">{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="13684" rel="nofollow" href="https://www.academia.edu/Documents/in/Morocco">Morocco</a>, <script data-card-contents-for-ri="13684" type="text/json">{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=41351603]'), work: {"id":41351603,"title":"Die Riesen-Phacopiden aus dem Maider, SE-marokkanische Pra-Sahara (STRUVE, W., 1995)","created_at":"2019-12-18T12:46:10.542-08:00","url":"https://www.academia.edu/41351603/Die_Riesen_Phacopiden_aus_dem_Maider_SE_marokkanische_Pra_Sahara_STRUVE_W_1995_?f_ri=24357","dom_id":"work_41351603","summary":"Contributions to the knowledge of Phacopina (Trilobita). The giant phacopids From Maider, SE-Moroccan Pre-Sahara.\n\nThe giant trilobites from the Middle Devonian of the Maider area - which attain a total length of 12-17 cm. and occasionally up to 20 cm. - are here assigned to the Tribus Geosopini STRUVE 1984 of the Subfamilia Phacopinae WAWLE \u0026 CORDA 1847. They belong to the \"North African\" genus Drotops STRUVE 1990, represented by the taxa megalomanicus megalomanicus STRUVE 1990, megalomanicus subornatus n. subsp., and armatus n. sp. as well by the \"Central European\" (sub-)genus Pedinoparops (Hypsipariops) STRUVE 1982, represented by the species vagabundus STRUVE 1990. - The introductory part of this paper treats with the marketing behavior of collectors and dealers, first attempts at determination, and with the problem of falsifications and/or \"artifacts\". The taxonomic-systematic part is introduced by a discussion of morphological features essential for generic determination. The descriptions are supported by a key for (sub-) generic assignment of Rhenish \"aspect\" phacopids and by a very simplified key for discrimination of \"Maider Giants\". - The evaluative part of the paper deals with the biostratinomic and palaeoecologic interpretation of the \"Maider Giants\" beds. Establishment of geological age(s) of the collecting site(s) is attempted by conodont and brachiopod evidence, as well as by the evaluation of the developmental stage of the species vagabundus within the phylogeny of Pedinopariops (Hypsipariops). Placozoogeographical affinities are discussed - The appendix treats with the subgeneric sub-division of Phacops EMMRICH 1839 [cited tn the key], with Atryparia eta n. sp. [Zone brachiopod, mentioned in the stratigraphic discussion] and with Chondrites praetargionii n. ichnosp. [facies indicator, metioned in the palaeoecological-palaeobathymetrical discusson]. ","downloadable_attachments":[{"id":61553285,"asset_id":41351603,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357","nofollow":true},{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":76748,"name":"Devonian","url":"https://www.academia.edu/Documents/in/Devonian?f_ri=24357"},{"id":90326,"name":"Fossils","url":"https://www.academia.edu/Documents/in/Fossils?f_ri=24357"},{"id":94388,"name":"Trilobite","url":"https://www.academia.edu/Documents/in/Trilobite?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_278039" data-work_id="278039" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/278039/Inferring_internal_anatomy_from_the_trilobite_exoskeleton_the_relationship_between_frontal_auxiliary_impressions_and_the_digestive_system">Inferring internal anatomy from the trilobite exoskeleton: the relationship between frontal auxiliary impressions and the digestive system.</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The digestive system of trilobites is rarely preserved. As a result, many aspects of its organization remain unknown. Fortunately, the exoskeleton sometimes preserves evidence of soft-tissue attachment sites that can be used to infer... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_278039" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The digestive system of trilobites is rarely preserved. As a result, many aspects of its organization remain unknown. Fortunately, the exoskeleton sometimes preserves evidence of soft-tissue attachment sites that can be used to infer internal anatomy. Among them are the frontal auxiliary impressions (FAIs), probable soft-tissue insertion sites located on the fronto-median glabellar lobe of some trilobites. FAIs are herein described in the Carboniferous trilobite Phillipsia belgica Osmolska 1970 – representing the only known example of such structures in the Proetida and their youngest occurrence. A taphonomic scenario is proposed to explain their variable preservation. Although particularly common in the Phacopina, FAIs or FAI-like structures are also found in several orders that differ greatly. Comparisons with modern analogues suggest that FAIs might represent attachment sites for extrinsic muscles associated with a differentiated crop within the foregut. A review of purported remains of the trilobite digestive system indicates that it usually consisted of a tube-like tract flanked by a variable number of metamerically paired diverticulae. Its anterior portion is not particularly individualized, except in a few specimens that might hint at the presence of a crop. This differentiation of a crop might have constituted a secondarily evolution of the foregut in trilobites, occurring independently in different clades. Accompanied by a strengthening of associated extrinsic muscles, this modification of the foregut might explain the presence of more conspicuous muscle insertion sites on the glabella. Study of FAIs might therefore provide new data on the anatomy of the foregut in trilobites and evidence of diverse feeding habits.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/278039" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="cd3008200560dc8a4a2c24cb852087fb" rel="nofollow" data-download="{"attachment_id":31594273,"asset_id":278039,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/31594273/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="224642" href="https://une-au.academia.edu/RudyLeroseyAubril">Rudy Lerosey-Aubril</a><script data-card-contents-for-user="224642" type="text/json">{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}</script></span></span></li><li class="js-paper-rank-work_278039 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="278039"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 278039, container: ".js-paper-rank-work_278039", }); });</script></li><li class="js-percentile-work_278039 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 278039; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_278039"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_278039 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="278039"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 278039; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=278039]").text(description); $(".js-view-count-work_278039").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_278039").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="278039"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">7</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="7710" rel="nofollow" href="https://www.academia.edu/Documents/in/Biology">Biology</a>, <script data-card-contents-for-ri="7710" type="text/json">{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="28845" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeobiology">Palaeobiology</a>, <script data-card-contents-for-ri="28845" type="text/json">{"id":28845,"name":"Palaeobiology","url":"https://www.academia.edu/Documents/in/Palaeobiology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a><script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=278039]'), work: {"id":278039,"title":"Inferring internal anatomy from the trilobite exoskeleton: the relationship between frontal auxiliary impressions and the digestive system.","created_at":"2010-07-29T03:27:19.992-07:00","url":"https://www.academia.edu/278039/Inferring_internal_anatomy_from_the_trilobite_exoskeleton_the_relationship_between_frontal_auxiliary_impressions_and_the_digestive_system?f_ri=24357","dom_id":"work_278039","summary":"The digestive system of trilobites is rarely preserved. As a result, many aspects of its organization remain unknown. Fortunately, the exoskeleton sometimes preserves evidence of soft-tissue attachment sites that can be used to infer internal anatomy. Among them are the frontal auxiliary impressions (FAIs), probable soft-tissue insertion sites located on the fronto-median glabellar lobe of some trilobites. FAIs are herein described in the Carboniferous trilobite Phillipsia belgica Osmolska 1970 – representing the only known example of such structures in the Proetida and their youngest occurrence. A taphonomic scenario is proposed to explain their variable preservation. Although particularly common in the Phacopina, FAIs or FAI-like structures are also found in several orders that differ greatly. Comparisons with modern analogues suggest that FAIs might represent attachment sites for extrinsic muscles associated with a differentiated crop within the foregut. A review of purported remains of the trilobite digestive system indicates that it usually consisted of a tube-like tract flanked by a variable number of metamerically paired diverticulae. Its anterior portion is not particularly individualized, except in a few specimens that might hint at the presence of a crop. This differentiation of a crop might have constituted a secondarily evolution of the foregut in trilobites, occurring independently in different clades. Accompanied by a strengthening of associated extrinsic muscles, this modification of the foregut might explain the presence of more conspicuous muscle insertion sites on the glabella. Study of FAIs might therefore provide new data on the anatomy of the foregut in trilobites and evidence of diverse feeding habits.","downloadable_attachments":[{"id":31594273,"asset_id":278039,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}],"research_interests":[{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":28845,"name":"Palaeobiology","url":"https://www.academia.edu/Documents/in/Palaeobiology?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":54589,"name":"Anatomy","url":"https://www.academia.edu/Documents/in/Anatomy?f_ri=24357"},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357"},{"id":182297,"name":"Animal feeding and nutrition","url":"https://www.academia.edu/Documents/in/Animal_feeding_and_nutrition?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_42689618" data-work_id="42689618" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/42689618/Unexpectedly_curved_spines_in_a_Cambrian_trilobite_considerations_on_the_spinosity_in_Kingaspidoides_spinirecurvatus_sp_nov_from_the_Anti_Atlas_Morocco_and_related_Cambrian_ellipsocephaloids">Unexpectedly curved spines in a Cambrian trilobite: considerations on the spinosity in Kingaspidoides spinirecurvatus sp. nov. from the Anti-Atlas, Morocco, and related Cambrian ellipsocephaloids</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The new ellipsocephaloid trilobite species Kingaspidoides spinirecurvatus has a spectacular morphology because of a unique set of two long and anteriorly recurved spines on the occipital ring and the axial ring of thoracic segment 8.... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_42689618" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The new ellipsocephaloid trilobite species Kingaspidoides spinirecurvatus has a spectacular morphology because of a unique set of two long and anteriorly recurved spines on the occipital ring and the axial ring of thoracic segment 8. Together with the long genal spines this whimsical dorsally directed spine arrangement is thought to act as a non-standard protective device against predators. This is illustrated by the body posture during different stages of enrolment, contrasting with the more sophisticated spinosities seen in later trilobites, which are discussed in brief. Kingaspidoides spinirecurvatus from the lower–middle Cambrian boundary interval of the eastern Anti-Atlas in Morocco has been known for about two decades, with specimens handled as precious objects on the fossil market. Similar, but far less spectacular, spine arrangements on the thoracic axial rings are known from other ellipsocephaloid trilobites from the Anti-Atlas of Morocco and the Franconian Forest region of Germany. This suggests that an experimental phase of spine development took place within the Kingaspidoides clade during the early–middle Cambrian boundary interval.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/42689618" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="0cda75a3cb4f2835715ae0212b97761a" rel="nofollow" data-download="{"attachment_id":62900325,"asset_id":42689618,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/62900325/download_file?st=MTc0MDUwNzMzOSw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="2548345" href="https://ulisboa.academia.edu/MiguelCaldeiraPais">Miguel Caldeira Pais - Mediterranic™</a><script data-card-contents-for-user="2548345" type="text/json">{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}</script></span></span></li><li class="js-paper-rank-work_42689618 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="42689618"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 42689618, container: ".js-paper-rank-work_42689618", }); });</script></li><li class="js-percentile-work_42689618 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 42689618; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_42689618"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_42689618 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="42689618"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 42689618; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=42689618]").text(description); $(".js-view-count-work_42689618").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_42689618").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="42689618"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">6</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="10770" rel="nofollow" href="https://www.academia.edu/Documents/in/Biostratigraphy">Biostratigraphy</a>, <script data-card-contents-for-ri="10770" type="text/json">{"id":10770,"name":"Biostratigraphy","url":"https://www.academia.edu/Documents/in/Biostratigraphy?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="13684" rel="nofollow" href="https://www.academia.edu/Documents/in/Morocco">Morocco</a>, <script data-card-contents-for-ri="13684" type="text/json">{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17824" rel="nofollow" href="https://www.academia.edu/Documents/in/Systematics">Systematics</a>, <script data-card-contents-for-ri="17824" type="text/json">{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=42689618]'), work: {"id":42689618,"title":"Unexpectedly curved spines in a Cambrian trilobite: considerations on the spinosity in Kingaspidoides spinirecurvatus sp. nov. from the Anti-Atlas, Morocco, and related Cambrian ellipsocephaloids","created_at":"2020-04-10T07:00:28.705-07:00","url":"https://www.academia.edu/42689618/Unexpectedly_curved_spines_in_a_Cambrian_trilobite_considerations_on_the_spinosity_in_Kingaspidoides_spinirecurvatus_sp_nov_from_the_Anti_Atlas_Morocco_and_related_Cambrian_ellipsocephaloids?f_ri=24357","dom_id":"work_42689618","summary":"The new ellipsocephaloid trilobite species Kingaspidoides spinirecurvatus has a spectacular morphology because of a unique set of two long and anteriorly recurved spines on the occipital ring and the axial ring of thoracic segment 8. Together with the long genal spines this whimsical dorsally directed spine arrangement is thought to act as a non-standard protective device against predators. This is illustrated by the body posture during different stages of enrolment, contrasting with the more sophisticated spinosities seen in later trilobites, which are discussed in brief. Kingaspidoides spinirecurvatus from the lower–middle Cambrian boundary interval of the eastern Anti-Atlas in Morocco has been known for about two decades, with specimens handled as precious objects on the fossil market. Similar, but far less spectacular, spine arrangements on the thoracic axial rings are known from other ellipsocephaloid trilobites from the Anti-Atlas of Morocco and the Franconian Forest region of Germany. This suggests that an experimental phase of spine development took place within the Kingaspidoides clade during the early–middle Cambrian boundary interval.","downloadable_attachments":[{"id":62900325,"asset_id":42689618,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}],"research_interests":[{"id":10770,"name":"Biostratigraphy","url":"https://www.academia.edu/Documents/in/Biostratigraphy?f_ri=24357","nofollow":true},{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true},{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357"},{"id":1011672,"name":"West Gondwana","url":"https://www.academia.edu/Documents/in/West_Gondwana?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_5444623" data-work_id="5444623" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/5444623/Parvilichas_marochii_New_genus_and_species_of_Lichidae_from_the_Zagora_region_Morocco_Early_Ordovician_Floian_">Parvilichas marochii: New genus and species of Lichidae from the Zagora region (Morocco); Early Ordovician (Floian)</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">A new genus of Lichidae (Parvilichas n. gen., with the type species P. marochii n. sp.) is described from the Floian of the Tinzouline (Zagora region, Morocco). Its closest relative is Uralichas Delgado, 1892, but Parvilichas n. gen.... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_5444623" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">A new genus of Lichidae (Parvilichas n. gen., with the type species P. marochii n. sp.) is described from the Floian of the Tinzouline (Zagora region, Morocco). Its closest relative is Uralichas Delgado, 1892, but Parvilichas n. gen. differs from Uralichas mainly in its smaller size, its larger eyes and longer genal spines. Parvilichas n. gen. extends the range of the Subfamily Lichinae down to the Floian.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/5444623" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="d38312333182f2fd01fcea6677cd17b4" rel="nofollow" data-download="{"attachment_id":32568624,"asset_id":5444623,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/32568624/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="7628811" href="https://independent.academia.edu/VelaJuan">Juan Vela</a><script data-card-contents-for-user="7628811" type="text/json">{"id":7628811,"first_name":"Juan","last_name":"Vela","domain_name":"independent","page_name":"VelaJuan","display_name":"Juan Vela","profile_url":"https://independent.academia.edu/VelaJuan?f_ri=24357","photo":"https://0.academia-photos.com/7628811/6436668/7280465/s65_juan.vela.jpg_oh_552e330c4067548774471030a6c26d56_oe_55406bf2___gda___1429794652_83ff48df4b0848f22325dcfd7293cf4f"}</script></span></span></li><li class="js-paper-rank-work_5444623 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="5444623"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 5444623, container: ".js-paper-rank-work_5444623", }); });</script></li><li class="js-percentile-work_5444623 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 5444623; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_5444623"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_5444623 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="5444623"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 5444623; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=5444623]").text(description); $(".js-view-count-work_5444623").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_5444623").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="5444623"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">7</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="155" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolutionary_Biology">Evolutionary Biology</a>, <script data-card-contents-for-ri="155" type="text/json">{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="10882" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolution">Evolution</a>, <script data-card-contents-for-ri="10882" type="text/json">{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=5444623]'), work: {"id":5444623,"title":"Parvilichas marochii: New genus and species of Lichidae from the Zagora region (Morocco); Early Ordovician (Floian)","created_at":"2013-12-16T04:11:33.169-08:00","url":"https://www.academia.edu/5444623/Parvilichas_marochii_New_genus_and_species_of_Lichidae_from_the_Zagora_region_Morocco_Early_Ordovician_Floian_?f_ri=24357","dom_id":"work_5444623","summary":"A new genus of Lichidae (Parvilichas n. gen., with the type species P. marochii n. sp.) is described from the Floian of the Tinzouline (Zagora region, Morocco). Its closest relative is Uralichas Delgado, 1892, but Parvilichas n. gen. differs from Uralichas mainly in its smaller size, its larger eyes and longer genal spines. Parvilichas n. gen. extends the range of the Subfamily Lichinae down to the Floian.","downloadable_attachments":[{"id":32568624,"asset_id":5444623,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":7628811,"first_name":"Juan","last_name":"Vela","domain_name":"independent","page_name":"VelaJuan","display_name":"Juan Vela","profile_url":"https://independent.academia.edu/VelaJuan?f_ri=24357","photo":"https://0.academia-photos.com/7628811/6436668/7280465/s65_juan.vela.jpg_oh_552e330c4067548774471030a6c26d56_oe_55406bf2___gda___1429794652_83ff48df4b0848f22325dcfd7293cf4f"}],"research_interests":[{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true},{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":1215155,"name":"Lichidae","url":"https://www.academia.edu/Documents/in/Lichidae?f_ri=24357"},{"id":1215157,"name":"Upper Fezouata Formation","url":"https://www.academia.edu/Documents/in/Upper_Fezouata_Formation?f_ri=24357"},{"id":1215158,"name":"Floian","url":"https://www.academia.edu/Documents/in/Floian?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_30985659 coauthored" data-work_id="30985659" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/30985659/Lerosey_Aubril_R_Paterson_J_R_Gibb_S_and_Chatterton_B_D_E_2017_Exceptionally_preserved_late_Cambrian_fossils_from_the_McKay_Group_British_Columbia_Canada_and_the_evolution_of_tagmosis_in_aglaspidid_arthropods_Gondwana_Research_42_264_279">Lerosey-Aubril, R., Paterson, J.R., Gibb, S. & Chatterton, B.D.E., 2017. Exceptionally-preserved late Cambrian fossils from the McKay Group (British Columbia, Canada) and the evolution of tagmosis in aglaspidid arthropods. Gondwana Research, 42: 264-279.</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Documentation of non-or weakly biomineralizing animals that lived during the Furongian is essential for a comprehensive understanding of the diversification dynamics of metazoans during the early Palaeozoic. However, the fossil record of... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_30985659" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Documentation of non-or weakly biomineralizing animals that lived during the Furongian is essential for a comprehensive understanding of the diversification dynamics of metazoans during the early Palaeozoic. However, the fossil record of 'soft'-bodied metazoans is particularly scarce for this critical time interval, consisting of rare fossils found at a dozen or so localities worldwide. Here we report new occurrences of exceptional preservation in Furongian (Jiangshanian) strata of the McKay Group near Cranbrook, British Columbia, Canada. This locality had already yielded trilobites with phosphatised guts, with all specimens representing the same species and occurring within a 10-m-thick interval. Two stratigraphically higher horizons with soft-tissue preservation are reported herein; one has yielded a ctenophore and an aglaspidid arthropod, the other a trilobite with a phosphatised gut belonging to a different species than the previously described specimens. The ctenophore represents the first Furongian record of the phylum and the first reported occurrence of Burgess Shale-type preservation in the upper Cambrian of Laurentia. The aglaspidid belongs to a new species of Glypharthrus, and is atypical in having twelve trunk tergites and an anteriorly narrow 'tailspine'. These features suggest that the tailspine of aglaspidids evolved from the fusion of a twelfth trunk segment with the telson. They also confirm the vicissicaudatan affinities of these extinct arthropods. Compositional analyses suggest that aglaspidid cuticle was essentially organic with a thin biomineralised (apatitic) outer layer. The trilobite reveals previously unknown gut features, such as medial fusion of digestive glands, possibly related to enhanced capabilities for digestion , storage, or the assimilation of food. The new fossils demonstrate that conditions conducive to soft-tissue preservation repeatedly developed in the outer shelf environment represented by the Furongian strata near Cranbrook. Future exploration of the c. 600-m-thick, mudstone-dominated upper part of the section may result in more abundant discoveries of exceptional fossils.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/30985659" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="4c3c7bde3422c6b3b86fe8519dd72ad0" rel="nofollow" data-download="{"attachment_id":51417717,"asset_id":30985659,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/51417717/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="155425" href="https://une-au.academia.edu/JohnPaterson">John Paterson</a><script data-card-contents-for-user="155425" type="text/json">{"id":155425,"first_name":"John","last_name":"Paterson","domain_name":"une-au","page_name":"JohnPaterson","display_name":"John Paterson","profile_url":"https://une-au.academia.edu/JohnPaterson?f_ri=24357","photo":"https://0.academia-photos.com/155425/40361/37093/s65_john.paterson.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-30985659">+1</span><div class="hidden js-additional-users-30985659"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://une-au.academia.edu/RudyLeroseyAubril">Rudy Lerosey-Aubril</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-30985659'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-30985659').html(); } } new HoverPopover(popoverSettings); })();</script></li><li class="js-paper-rank-work_30985659 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="30985659"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 30985659, container: ".js-paper-rank-work_30985659", }); });</script></li><li class="js-percentile-work_30985659 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 30985659; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_30985659"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_30985659 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="30985659"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 30985659; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=30985659]").text(description); $(".js-view-count-work_30985659").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_30985659").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="30985659"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">11</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="10882" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolution">Evolution</a>, <script data-card-contents-for-ri="10882" type="text/json">{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a>, <script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="78109" rel="nofollow" href="https://www.academia.edu/Documents/in/Cambrian">Cambrian</a><script data-card-contents-for-ri="78109" type="text/json">{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=30985659]'), work: {"id":30985659,"title":"Lerosey-Aubril, R., Paterson, J.R., Gibb, S. \u0026 Chatterton, B.D.E., 2017. Exceptionally-preserved late Cambrian fossils from the McKay Group (British Columbia, Canada) and the evolution of tagmosis in aglaspidid arthropods. Gondwana Research, 42: 264-279.","created_at":"2017-01-18T16:46:56.117-08:00","url":"https://www.academia.edu/30985659/Lerosey_Aubril_R_Paterson_J_R_Gibb_S_and_Chatterton_B_D_E_2017_Exceptionally_preserved_late_Cambrian_fossils_from_the_McKay_Group_British_Columbia_Canada_and_the_evolution_of_tagmosis_in_aglaspidid_arthropods_Gondwana_Research_42_264_279?f_ri=24357","dom_id":"work_30985659","summary":"Documentation of non-or weakly biomineralizing animals that lived during the Furongian is essential for a comprehensive understanding of the diversification dynamics of metazoans during the early Palaeozoic. However, the fossil record of 'soft'-bodied metazoans is particularly scarce for this critical time interval, consisting of rare fossils found at a dozen or so localities worldwide. Here we report new occurrences of exceptional preservation in Furongian (Jiangshanian) strata of the McKay Group near Cranbrook, British Columbia, Canada. This locality had already yielded trilobites with phosphatised guts, with all specimens representing the same species and occurring within a 10-m-thick interval. Two stratigraphically higher horizons with soft-tissue preservation are reported herein; one has yielded a ctenophore and an aglaspidid arthropod, the other a trilobite with a phosphatised gut belonging to a different species than the previously described specimens. The ctenophore represents the first Furongian record of the phylum and the first reported occurrence of Burgess Shale-type preservation in the upper Cambrian of Laurentia. The aglaspidid belongs to a new species of Glypharthrus, and is atypical in having twelve trunk tergites and an anteriorly narrow 'tailspine'. These features suggest that the tailspine of aglaspidids evolved from the fusion of a twelfth trunk segment with the telson. They also confirm the vicissicaudatan affinities of these extinct arthropods. Compositional analyses suggest that aglaspidid cuticle was essentially organic with a thin biomineralised (apatitic) outer layer. The trilobite reveals previously unknown gut features, such as medial fusion of digestive glands, possibly related to enhanced capabilities for digestion , storage, or the assimilation of food. The new fossils demonstrate that conditions conducive to soft-tissue preservation repeatedly developed in the outer shelf environment represented by the Furongian strata near Cranbrook. Future exploration of the c. 600-m-thick, mudstone-dominated upper part of the section may result in more abundant discoveries of exceptional fossils.","downloadable_attachments":[{"id":51417717,"asset_id":30985659,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":155425,"first_name":"John","last_name":"Paterson","domain_name":"une-au","page_name":"JohnPaterson","display_name":"John Paterson","profile_url":"https://une-au.academia.edu/JohnPaterson?f_ri=24357","photo":"https://0.academia-photos.com/155425/40361/37093/s65_john.paterson.jpg"},{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}],"research_interests":[{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true},{"id":244904,"name":"Cambrian explosion","url":"https://www.academia.edu/Documents/in/Cambrian_explosion?f_ri=24357"},{"id":245668,"name":"Arthropods","url":"https://www.academia.edu/Documents/in/Arthropods?f_ri=24357"},{"id":332829,"name":"Lagerstätte","url":"https://www.academia.edu/Documents/in/Lagerst%C3%A4tte?f_ri=24357"},{"id":360187,"name":"Exceptional Preservation","url":"https://www.academia.edu/Documents/in/Exceptional_Preservation?f_ri=24357"},{"id":539997,"name":"Lagerstatten","url":"https://www.academia.edu/Documents/in/Lagerstatten?f_ri=24357"},{"id":714026,"name":"Fossil Arthropods","url":"https://www.academia.edu/Documents/in/Fossil_Arthropods?f_ri=24357"},{"id":1300875,"name":"Animal Evolution, Cambrian Explosion","url":"https://www.academia.edu/Documents/in/Animal_Evolution_Cambrian_Explosion?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_39053052" data-work_id="39053052" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/39053052/Paterson_J_R_Edgecombe_G_D_and_Lee_M_S_Y_2019_Trilobite_evolutionary_rates_constrain_the_duration_of_the_Cambrian_explosion_Proceedings_of_the_National_Academy_of_Sciences_USA_116_10_4394_4399">Paterson, J.R., Edgecombe, G.D. & Lee, M.S.Y., 2019 Trilobite evolutionary rates constrain the duration of the Cambrian explosion. Proceedings of the National Academy of Sciences (USA), 116(10): 4394-4399.</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Trilobites are often considered exemplary for understanding the Cambrian explosion of animal life, due to their unsurpassed diversity and abundance. These biomineralized arthropods appear abruptly in the fossil record with an established... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_39053052" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Trilobites are often considered exemplary for understanding the Cambrian explosion of animal life, due to their unsurpassed diversity and abundance. These biomineralized arthropods appear abruptly in the fossil record with an established diversity, phyloge-netic disparity, and provincialism at the beginning of Cambrian Series 2 (∼521 Ma), suggesting a protracted but cryptic earlier history that possibly extends into the Precambrian. However, recent analyses indicate elevated rates of phenotypic and genomic evolution for arthropods during the early Cambrian, thereby shortening the phylogenetic fuse. Furthermore, comparatively little research has been devoted to understanding the duration of the Cambrian explosion, after which normal Phanerozoic evolutionary rates were established. We test these hypotheses by applying Bayesian tip-dating methods to a comprehensive dataset of Cambrian trilobites. We show that trilobites have a Cambrian origin, as supported by the trace fossil record and molecular clocks. Surprisingly, they exhibit constant evolutionary rates across the entire Cambrian, for all aspects of the preserved phenotype: discrete, meristic, and continuous morphological traits. Our data therefore provide robust, quantitative evidence that by the time the typical Cambrian fossil record begins (∼521 Ma), the Cambrian explosion had already largely concluded. This suggests that a modern-style marine biosphere had rapidly emerged during the latest Ediacaran and earliest Cambrian (∼20 million years), followed by broad-scale evolutionary stasis throughout the remainder of the Cambrian.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/39053052" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="fa287a741384bdbfbbb3322d58325a1b" rel="nofollow" data-download="{"attachment_id":59167318,"asset_id":39053052,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/59167318/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="155425" href="https://une-au.academia.edu/JohnPaterson">John Paterson</a><script data-card-contents-for-user="155425" type="text/json">{"id":155425,"first_name":"John","last_name":"Paterson","domain_name":"une-au","page_name":"JohnPaterson","display_name":"John Paterson","profile_url":"https://une-au.academia.edu/JohnPaterson?f_ri=24357","photo":"https://0.academia-photos.com/155425/40361/37093/s65_john.paterson.jpg"}</script></span></span></li><li class="js-paper-rank-work_39053052 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="39053052"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 39053052, container: ".js-paper-rank-work_39053052", }); });</script></li><li class="js-percentile-work_39053052 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 39053052; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_39053052"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_39053052 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="39053052"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 39053052; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=39053052]").text(description); $(".js-view-count-work_39053052").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_39053052").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="39053052"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">20</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="155" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolutionary_Biology">Evolutionary Biology</a>, <script data-card-contents-for-ri="155" type="text/json">{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="3244" rel="nofollow" href="https://www.academia.edu/Documents/in/Bayesian">Bayesian</a>, <script data-card-contents-for-ri="3244" type="text/json">{"id":3244,"name":"Bayesian","url":"https://www.academia.edu/Documents/in/Bayesian?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="3364" rel="nofollow" href="https://www.academia.edu/Documents/in/Morphological_evolution">Morphological evolution</a>, <script data-card-contents-for-ri="3364" type="text/json">{"id":3364,"name":"Morphological evolution","url":"https://www.academia.edu/Documents/in/Morphological_evolution?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="10882" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolution">Evolution</a><script data-card-contents-for-ri="10882" type="text/json">{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=39053052]'), work: {"id":39053052,"title":"Paterson, J.R., Edgecombe, G.D. \u0026 Lee, M.S.Y., 2019 Trilobite evolutionary rates constrain the duration of the Cambrian explosion. Proceedings of the National Academy of Sciences (USA), 116(10): 4394-4399.","created_at":"2019-05-08T00:49:09.574-07:00","url":"https://www.academia.edu/39053052/Paterson_J_R_Edgecombe_G_D_and_Lee_M_S_Y_2019_Trilobite_evolutionary_rates_constrain_the_duration_of_the_Cambrian_explosion_Proceedings_of_the_National_Academy_of_Sciences_USA_116_10_4394_4399?f_ri=24357","dom_id":"work_39053052","summary":"Trilobites are often considered exemplary for understanding the Cambrian explosion of animal life, due to their unsurpassed diversity and abundance. These biomineralized arthropods appear abruptly in the fossil record with an established diversity, phyloge-netic disparity, and provincialism at the beginning of Cambrian Series 2 (∼521 Ma), suggesting a protracted but cryptic earlier history that possibly extends into the Precambrian. However, recent analyses indicate elevated rates of phenotypic and genomic evolution for arthropods during the early Cambrian, thereby shortening the phylogenetic fuse. Furthermore, comparatively little research has been devoted to understanding the duration of the Cambrian explosion, after which normal Phanerozoic evolutionary rates were established. We test these hypotheses by applying Bayesian tip-dating methods to a comprehensive dataset of Cambrian trilobites. We show that trilobites have a Cambrian origin, as supported by the trace fossil record and molecular clocks. Surprisingly, they exhibit constant evolutionary rates across the entire Cambrian, for all aspects of the preserved phenotype: discrete, meristic, and continuous morphological traits. Our data therefore provide robust, quantitative evidence that by the time the typical Cambrian fossil record begins (∼521 Ma), the Cambrian explosion had already largely concluded. This suggests that a modern-style marine biosphere had rapidly emerged during the latest Ediacaran and earliest Cambrian (∼20 million years), followed by broad-scale evolutionary stasis throughout the remainder of the Cambrian.","downloadable_attachments":[{"id":59167318,"asset_id":39053052,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":155425,"first_name":"John","last_name":"Paterson","domain_name":"une-au","page_name":"JohnPaterson","display_name":"John Paterson","profile_url":"https://une-au.academia.edu/JohnPaterson?f_ri=24357","photo":"https://0.academia-photos.com/155425/40361/37093/s65_john.paterson.jpg"}],"research_interests":[{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true},{"id":3244,"name":"Bayesian","url":"https://www.academia.edu/Documents/in/Bayesian?f_ri=24357","nofollow":true},{"id":3364,"name":"Morphological evolution","url":"https://www.academia.edu/Documents/in/Morphological_evolution?f_ri=24357","nofollow":true},{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357"},{"id":27854,"name":"Darwin","url":"https://www.academia.edu/Documents/in/Darwin?f_ri=24357"},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":38701,"name":"Bayesian Analysis","url":"https://www.academia.edu/Documents/in/Bayesian_Analysis?f_ri=24357"},{"id":41239,"name":"Bayesian statistics \u0026 modelling","url":"https://www.academia.edu/Documents/in/Bayesian_statistics_and_modelling?f_ri=24357"},{"id":75774,"name":"Charles Darwin","url":"https://www.academia.edu/Documents/in/Charles_Darwin?f_ri=24357"},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357"},{"id":84941,"name":"Cambrian Ecosystem","url":"https://www.academia.edu/Documents/in/Cambrian_Ecosystem?f_ri=24357"},{"id":98467,"name":"Cambrian-Devonian trilobites","url":"https://www.academia.edu/Documents/in/Cambrian-Devonian_trilobites?f_ri=24357"},{"id":208180,"name":"Geology (Palaeontology and stratigraphy of Neoproterozoic and Early Cambrian)","url":"https://www.academia.edu/Documents/in/Geology_Palaeontology_and_stratigraphy_of_Neoproterozoic_and_Early_Cambrian_?f_ri=24357"},{"id":244904,"name":"Cambrian explosion","url":"https://www.academia.edu/Documents/in/Cambrian_explosion?f_ri=24357"},{"id":366206,"name":"Cambrian and Precambrian","url":"https://www.academia.edu/Documents/in/Cambrian_and_Precambrian?f_ri=24357"},{"id":390024,"name":"Cambrian Fossils","url":"https://www.academia.edu/Documents/in/Cambrian_Fossils?f_ri=24357"},{"id":617735,"name":"Evolutionary Rates","url":"https://www.academia.edu/Documents/in/Evolutionary_Rates?f_ri=24357"},{"id":870553,"name":"Cambrian Trilobites","url":"https://www.academia.edu/Documents/in/Cambrian_Trilobites?f_ri=24357"},{"id":954603,"name":"Cambrian Ecology","url":"https://www.academia.edu/Documents/in/Cambrian_Ecology?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_39713486" data-work_id="39713486" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/39713486/Ordovician_trilobites_from_Deh_Molla_eastern_Alborz_Iran_Mansoureh_Ghobadi_Pour">Ordovician trilobites from Deh-Molla, eastern Alborz, Iran Mansoureh Ghobadi Pour</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Seventeen species from 14 genera of Tremadocian and Darriwilian trilobites, plus two taxa recognizable only down to family level, have been documented from the Lower to Middle Ordovician succession of the Deh-Molla area, southeast of... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_39713486" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Seventeen species from 14 genera of Tremadocian and Darriwilian trilobites, plus two taxa recognizable only down to family level, have been<br />documented from the Lower to Middle Ordovician succession of the Deh-Molla area, southeast of Shahrud in northern Iran. Two species,<br />Asaphellus intermedius and Conophrys multituberculatus, are new to science. Unlike previously documented Iranian faunas, the early<br />Tremadocian trilobite assemblage is characterized by proliferation of the olenid Chungkingaspis sinensis, which is also known as the eponymous<br />taxon of the basal Ordovician trilobite biozone in South China. This is the first record of the occurrence of the olenid biofacies in the Ordovician<br />of Iran. Overall, both the Tremadocian and Darriwilian trilobite assemblages show distinct similarity to the contemporaneous faunas of South<br />China down to species level. Trilobite-based correlation with the Ordovician succession of South China confirms the existence of a hiatus at the<br />base of the Ordovician succession in the eastern Alborz and a significant gap, with the upper Tremadocian, Floian and Dapingian parts of the<br />succession completely missing in Deh-Molla.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/39713486" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="01a89edb692743c771eecec42d2879c6" rel="nofollow" data-download="{"attachment_id":59887264,"asset_id":39713486,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/59887264/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="159426" href="https://m-savadkouhi.academia.edu/MansourehGhobadipour">Mansoureh Ghobadipour</a><script data-card-contents-for-user="159426" type="text/json">{"id":159426,"first_name":"Mansoureh","last_name":"Ghobadipour","domain_name":"m-savadkouhi","page_name":"MansourehGhobadipour","display_name":"Mansoureh Ghobadipour","profile_url":"https://m-savadkouhi.academia.edu/MansourehGhobadipour?f_ri=24357","photo":"https://0.academia-photos.com/159426/95835/109019/s65_mansoureh.ghobadipour.jpg"}</script></span></span></li><li class="js-paper-rank-work_39713486 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="39713486"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 39713486, container: ".js-paper-rank-work_39713486", }); });</script></li><li class="js-percentile-work_39713486 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 39713486; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_39713486"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_39713486 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="39713486"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 39713486; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=39713486]").text(description); $(".js-view-count-work_39713486").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_39713486").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="39713486"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">3</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="79166" rel="nofollow" href="https://www.academia.edu/Documents/in/Ordovician">Ordovician</a>, <script data-card-contents-for-ri="79166" type="text/json">{"id":79166,"name":"Ordovician","url":"https://www.academia.edu/Documents/in/Ordovician?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="246364" rel="nofollow" href="https://www.academia.edu/Documents/in/Invertebrate_Palaeontology">Invertebrate Palaeontology</a><script data-card-contents-for-ri="246364" type="text/json">{"id":246364,"name":"Invertebrate Palaeontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Palaeontology?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=39713486]'), work: {"id":39713486,"title":"Ordovician trilobites from Deh-Molla, eastern Alborz, Iran Mansoureh Ghobadi Pour","created_at":"2019-06-28T00:58:17.011-07:00","url":"https://www.academia.edu/39713486/Ordovician_trilobites_from_Deh_Molla_eastern_Alborz_Iran_Mansoureh_Ghobadi_Pour?f_ri=24357","dom_id":"work_39713486","summary":"Seventeen species from 14 genera of Tremadocian and Darriwilian trilobites, plus two taxa recognizable only down to family level, have been\ndocumented from the Lower to Middle Ordovician succession of the Deh-Molla area, southeast of Shahrud in northern Iran. Two species,\nAsaphellus intermedius and Conophrys multituberculatus, are new to science. Unlike previously documented Iranian faunas, the early\nTremadocian trilobite assemblage is characterized by proliferation of the olenid Chungkingaspis sinensis, which is also known as the eponymous\ntaxon of the basal Ordovician trilobite biozone in South China. This is the first record of the occurrence of the olenid biofacies in the Ordovician\nof Iran. Overall, both the Tremadocian and Darriwilian trilobite assemblages show distinct similarity to the contemporaneous faunas of South\nChina down to species level. Trilobite-based correlation with the Ordovician succession of South China confirms the existence of a hiatus at the\nbase of the Ordovician succession in the eastern Alborz and a significant gap, with the upper Tremadocian, Floian and Dapingian parts of the\nsuccession completely missing in Deh-Molla.","downloadable_attachments":[{"id":59887264,"asset_id":39713486,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":159426,"first_name":"Mansoureh","last_name":"Ghobadipour","domain_name":"m-savadkouhi","page_name":"MansourehGhobadipour","display_name":"Mansoureh Ghobadipour","profile_url":"https://m-savadkouhi.academia.edu/MansourehGhobadipour?f_ri=24357","photo":"https://0.academia-photos.com/159426/95835/109019/s65_mansoureh.ghobadipour.jpg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":79166,"name":"Ordovician","url":"https://www.academia.edu/Documents/in/Ordovician?f_ri=24357","nofollow":true},{"id":246364,"name":"Invertebrate Palaeontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Palaeontology?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_37523883" data-work_id="37523883" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" rel="nofollow" href="https://www.academia.edu/37523883/Digestive_structures_in_the_Middle_Ordovician_trilobite_Prionocheilus_Rouault_1847_from_the_Barrandian_area_of_Czech_Republic">Digestive structures in the Middle Ordovician trilobite Prionocheilus Rouault 1847, from the Barrandian area of Czech Republic</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Remains of a digestive system from a slightly damaged articulated specimen of the comparatively rare bathycheilid trilobite Prionocheilus vokovicensis (Šnajdr, 1956) are described for the first time. The specimen comes from the Middle... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_37523883" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Remains of a digestive system from a slightly damaged articulated specimen of the comparatively rare bathycheilid trilobite Prionocheilus vokovicensis (Šnajdr, 1956) are described for the first time. The specimen comes from the Middle Ordovician Šárka Formation of the Prague Basin and contains the midgut region of the digestive system preserved through the axial region of glabella and six anterior thoracic segments. The anterior-most part of the digestive system is unknown as the anterior glabellar lobes are not preserved in the studied specimen. In the cephalic shield, the remains of two pairs of gut diverticulae are seen in the posterior region of the glabella. Remains of five pairs of small cavities developed in the axis of the first six thoracic segments represent the remains of thoracic gut diverticulae. The discussed specimen possess the first undoubted remain of digestive structures established within the family Bathycheilidae (PŘibyl, 1953).</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/37523883" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="87777249" href="https://ub.academia.edu/GeologicaActa">Geologica Acta</a><script data-card-contents-for-user="87777249" type="text/json">{"id":87777249,"first_name":"Geologica","last_name":"Acta","domain_name":"ub","page_name":"GeologicaActa","display_name":"Geologica Acta","profile_url":"https://ub.academia.edu/GeologicaActa?f_ri=24357","photo":"https://0.academia-photos.com/87777249/29360399/27335799/s65_geologica.acta.jpg"}</script></span></span></li><li class="js-paper-rank-work_37523883 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="37523883"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 37523883, container: ".js-paper-rank-work_37523883", }); });</script></li><li class="js-percentile-work_37523883 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 37523883; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_37523883"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_37523883 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="37523883"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 37523883; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=37523883]").text(description); $(".js-view-count-work_37523883").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_37523883").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="37523883"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">14</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="28160" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeontology">Palaeontology</a>, <script data-card-contents-for-ri="28160" type="text/json">{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a><script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=37523883]'), work: {"id":37523883,"title":"Digestive structures in the Middle Ordovician trilobite Prionocheilus Rouault 1847, from the Barrandian area of Czech Republic","created_at":"2018-10-03T10:02:12.430-07:00","url":"https://www.academia.edu/37523883/Digestive_structures_in_the_Middle_Ordovician_trilobite_Prionocheilus_Rouault_1847_from_the_Barrandian_area_of_Czech_Republic?f_ri=24357","dom_id":"work_37523883","summary":"Remains of a digestive system from a slightly damaged articulated specimen of the comparatively rare bathycheilid trilobite Prionocheilus vokovicensis (Šnajdr, 1956) are described for the first time. The specimen comes from the Middle Ordovician Šárka Formation of the Prague Basin and contains the midgut region of the digestive system preserved through the axial region of glabella and six anterior thoracic segments. The anterior-most part of the digestive system is unknown as the anterior glabellar lobes are not preserved in the studied specimen. In the cephalic shield, the remains of two pairs of gut diverticulae are seen in the posterior region of the glabella. Remains of five pairs of small cavities developed in the axis of the first six thoracic segments represent the remains of thoracic gut diverticulae. The discussed specimen possess the first undoubted remain of digestive structures established within the family Bathycheilidae (PŘibyl, 1953).","downloadable_attachments":[],"ordered_authors":[{"id":87777249,"first_name":"Geologica","last_name":"Acta","domain_name":"ub","page_name":"GeologicaActa","display_name":"Geologica Acta","profile_url":"https://ub.academia.edu/GeologicaActa?f_ri=24357","photo":"https://0.academia-photos.com/87777249/29360399/27335799/s65_geologica.acta.jpg"}],"research_interests":[{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":39549,"name":"Czech Republic","url":"https://www.academia.edu/Documents/in/Czech_Republic?f_ri=24357"},{"id":45598,"name":"Phacopidae","url":"https://www.academia.edu/Documents/in/Phacopidae?f_ri=24357"},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357"},{"id":79166,"name":"Ordovician","url":"https://www.academia.edu/Documents/in/Ordovician?f_ri=24357"},{"id":90326,"name":"Fossils","url":"https://www.academia.edu/Documents/in/Fossils?f_ri=24357"},{"id":104823,"name":"Prague","url":"https://www.academia.edu/Documents/in/Prague?f_ri=24357"},{"id":326939,"name":"Digestive Tract","url":"https://www.academia.edu/Documents/in/Digestive_Tract?f_ri=24357"},{"id":336223,"name":"Digestive System","url":"https://www.academia.edu/Documents/in/Digestive_System?f_ri=24357"},{"id":708490,"name":"Prague Basin","url":"https://www.academia.edu/Documents/in/Prague_Basin?f_ri=24357"},{"id":1506061,"name":"Specimen","url":"https://www.academia.edu/Documents/in/Specimen?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_38867825" data-work_id="38867825" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/38867825/Early_post_embryonic_trilobite_stages_and_possible_eggs_from_the_Tunel_Ordov%C4%B1cico_del_Fabar_Middle_Ordovician_northwestern_Spain_">Early post-embryonic trilobite stages and possible eggs from the ‘Tunel Ordovıcico del Fabar’ (Middle Ordovician, northwestern Spain)</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The sub-surface section of the Middle Ordovician Sueve Formation of the Cantabrian Zone, studied during the construction of a tunnel in the A-8 free highway of northern Spain, provided abundant fossiliferous horizons rich in trilobites of... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_38867825" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The sub-surface section of the Middle Ordovician Sueve Formation of the Cantabrian<br />Zone, studied during the construction of a tunnel in the A-8 free highway of northern<br />Spain, provided abundant fossiliferous horizons rich in trilobites of Darriwilian age. Finegrained mudstones of the Cofino Member delicately preserve a number of early stages of ~<br />the calymenacean trilobite Prionocheilus mendax (Vanek), from protaspides to meraspid<br />degree 2, including in situ exuviae with disarticulated librigenae. From the upper part of<br />the Bayo Member, small clusters of pyrite spheres ca. 0.5 mm in diameter are recorded,<br />and may represent eggs of trilobites, being associated with the pliomerid Placoparia<br />(Coplacoparia) tournemini. (Rouault) in the same beds. The sphaeroids may represent the<br />pyrite infilling of the internal cavity of possible eggs, and the covering is replaced by phyllosilicates. Differences in shape and size from presumed olenid eggs may be caused by the<br />particular environmental adaptations of the latter group. The relatively large size of both<br />the calymenid larvae and the pyritized eggs suggests a lecithotrophy development related<br />to higher latitudes and/or with scarce organic matter.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/38867825" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="e5b9d94877a99171d432ce845c0bc643" rel="nofollow" data-download="{"attachment_id":58963927,"asset_id":38867825,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/58963927/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="2548345" href="https://ulisboa.academia.edu/MiguelCaldeiraPais">Miguel Caldeira Pais - Mediterranic™</a><script data-card-contents-for-user="2548345" type="text/json">{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}</script></span></span></li><li class="js-paper-rank-work_38867825 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="38867825"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 38867825, container: ".js-paper-rank-work_38867825", }); });</script></li><li class="js-percentile-work_38867825 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 38867825; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_38867825"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_38867825 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="38867825"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 38867825; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=38867825]").text(description); $(".js-view-count-work_38867825").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_38867825").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="38867825"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">7</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a>, <script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="40516" rel="nofollow" href="https://www.academia.edu/Documents/in/Spain">Spain</a>, <script data-card-contents-for-ri="40516" type="text/json">{"id":40516,"name":"Spain","url":"https://www.academia.edu/Documents/in/Spain?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="57125" rel="nofollow" href="https://www.academia.edu/Documents/in/Fossil_Eggs">Fossil Eggs</a><script data-card-contents-for-ri="57125" type="text/json">{"id":57125,"name":"Fossil Eggs","url":"https://www.academia.edu/Documents/in/Fossil_Eggs?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=38867825]'), work: {"id":38867825,"title":"Early post-embryonic trilobite stages and possible eggs from the ‘Tunel Ordovıcico del Fabar’ (Middle Ordovician, northwestern Spain)","created_at":"2019-04-19T10:56:27.674-07:00","url":"https://www.academia.edu/38867825/Early_post_embryonic_trilobite_stages_and_possible_eggs_from_the_Tunel_Ordov%C4%B1cico_del_Fabar_Middle_Ordovician_northwestern_Spain_?f_ri=24357","dom_id":"work_38867825","summary":"The sub-surface section of the Middle Ordovician Sueve Formation of the Cantabrian\nZone, studied during the construction of a tunnel in the A-8 free highway of northern\nSpain, provided abundant fossiliferous horizons rich in trilobites of Darriwilian age. Finegrained mudstones of the Cofino Member delicately preserve a number of early stages of ~\nthe calymenacean trilobite Prionocheilus mendax (Vanek), from protaspides to meraspid\ndegree 2, including in situ exuviae with disarticulated librigenae. From the upper part of\nthe Bayo Member, small clusters of pyrite spheres ca. 0.5 mm in diameter are recorded,\nand may represent eggs of trilobites, being associated with the pliomerid Placoparia\n(Coplacoparia) tournemini. (Rouault) in the same beds. The sphaeroids may represent the\npyrite infilling of the internal cavity of possible eggs, and the covering is replaced by phyllosilicates. Differences in shape and size from presumed olenid eggs may be caused by the\nparticular environmental adaptations of the latter group. The relatively large size of both\nthe calymenid larvae and the pyritized eggs suggests a lecithotrophy development related\nto higher latitudes and/or with scarce organic matter. ","downloadable_attachments":[{"id":58963927,"asset_id":38867825,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":40516,"name":"Spain","url":"https://www.academia.edu/Documents/in/Spain?f_ri=24357","nofollow":true},{"id":57125,"name":"Fossil Eggs","url":"https://www.academia.edu/Documents/in/Fossil_Eggs?f_ri=24357","nofollow":true},{"id":78133,"name":"Gondwana","url":"https://www.academia.edu/Documents/in/Gondwana?f_ri=24357"},{"id":3206244,"name":"biological development","url":"https://www.academia.edu/Documents/in/biological_development?f_ri=24357"},{"id":3206245,"name":"lecithotrophy","url":"https://www.academia.edu/Documents/in/lecithotrophy?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_14262329 coauthored" data-work_id="14262329" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/14262329/Phylogenetic_support_for_the_monophyly_of_proetide_trilobites">Phylogenetic support for the monophyly of proetide trilobites</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The monophyly of the order Proetida, the only trilobite group to survive the end- Devonian mass extinction, has been regularly questioned since its erection almost three decades ago. Through analysis of a novel phylogenetic dataset... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_14262329" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The monophyly of the order Proetida, the only trilobite group to survive the end- Devonian mass extinction, has been regularly questioned since its erection almost three decades ago. Through analysis of a novel phylogenetic dataset comprising 114 characters coded for 55 taxa, including both traditional members of the Proetida along with a number of other trilobite groups, the monophyly of proetide trilobites is rigorously tested for the first time. Proetida is shown to be monophyletic, united by the initial compound eye formation in early protaspids occurring at the lateral margin rather than the anterior margin, and the form of the protaspid glabella being tapering with a preglabellar field. A number of adult characters, including the possession of a quadrate or shield-shaped hypostome with angular posterior margins, the hypostome median body being divided by a deep groove that entirely traverses the median body, the presence of an enlarged thoracic spine on the sixth tergite, and a tergite count of between 7 and 10, also define the basal node. Hystricurid and dimeropygid trilobites are shown to resolve at the base of the group, while the remaining proetide taxa are divided between large proetoid and aulacopleuroid clades. Some taxa previously allied with Aulacopleuroidea, such as rorringtoniids and scharyiids, are retrieved as basal members of the Proetoidea.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/14262329" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="e096b53e949ae41065ac8541b1487734" rel="nofollow" data-download="{"attachment_id":38250178,"asset_id":14262329,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/38250178/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="244700" href="https://wvu.academia.edu/JamesLamsdell">James Lamsdell</a><script data-card-contents-for-user="244700" type="text/json">{"id":244700,"first_name":"James","last_name":"Lamsdell","domain_name":"wvu","page_name":"JamesLamsdell","display_name":"James Lamsdell","profile_url":"https://wvu.academia.edu/JamesLamsdell?f_ri=24357","photo":"https://0.academia-photos.com/244700/53058/14333988/s65_james.lamsdell.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-14262329">+1</span><div class="hidden js-additional-users-14262329"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://kansas.academia.edu/PaulSelden">Paul Selden</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-14262329'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-14262329').html(); } } new HoverPopover(popoverSettings); })();</script></li><li class="js-paper-rank-work_14262329 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="14262329"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 14262329, container: ".js-paper-rank-work_14262329", }); });</script></li><li class="js-percentile-work_14262329 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 14262329; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_14262329"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_14262329 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="14262329"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 14262329; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=14262329]").text(description); $(".js-view-count-work_14262329").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_14262329").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="14262329"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">10</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="4207" rel="nofollow" href="https://www.academia.edu/Documents/in/Phylogenetics">Phylogenetics</a>, <script data-card-contents-for-ri="4207" type="text/json">{"id":4207,"name":"Phylogenetics","url":"https://www.academia.edu/Documents/in/Phylogenetics?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="28160" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeontology">Palaeontology</a><script data-card-contents-for-ri="28160" type="text/json">{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=14262329]'), work: {"id":14262329,"title":"Phylogenetic support for the monophyly of proetide trilobites","created_at":"2015-07-21T09:14:42.884-07:00","url":"https://www.academia.edu/14262329/Phylogenetic_support_for_the_monophyly_of_proetide_trilobites?f_ri=24357","dom_id":"work_14262329","summary":"The monophyly of the order Proetida, the only trilobite group to survive the end- Devonian mass extinction, has been regularly questioned since its erection almost three decades ago. Through analysis of a novel phylogenetic dataset comprising 114 characters coded for 55 taxa, including both traditional members of the Proetida along with a number of other trilobite groups, the monophyly of proetide trilobites is rigorously tested for the first time. Proetida is shown to be monophyletic, united by the initial compound eye formation in early protaspids occurring at the lateral margin rather than the anterior margin, and the form of the protaspid glabella being tapering with a preglabellar field. A number of adult characters, including the possession of a quadrate or shield-shaped hypostome with angular posterior margins, the hypostome median body being divided by a deep groove that entirely traverses the median body, the presence of an enlarged thoracic spine on the sixth tergite, and a tergite count of between 7 and 10, also define the basal node. Hystricurid and dimeropygid trilobites are shown to resolve at the base of the group, while the remaining proetide taxa are divided between large proetoid and aulacopleuroid clades. Some taxa previously allied with Aulacopleuroidea, such as rorringtoniids and scharyiids, are retrieved as basal members of the Proetoidea.","downloadable_attachments":[{"id":38250178,"asset_id":14262329,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":244700,"first_name":"James","last_name":"Lamsdell","domain_name":"wvu","page_name":"JamesLamsdell","display_name":"James Lamsdell","profile_url":"https://wvu.academia.edu/JamesLamsdell?f_ri=24357","photo":"https://0.academia-photos.com/244700/53058/14333988/s65_james.lamsdell.jpg"},{"id":143325,"first_name":"Paul","last_name":"Selden","domain_name":"kansas","page_name":"PaulSelden","display_name":"Paul Selden","profile_url":"https://kansas.academia.edu/PaulSelden?f_ri=24357","photo":"https://0.academia-photos.com/143325/37974/34880/s65_paul.selden.jpg"}],"research_interests":[{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":4207,"name":"Phylogenetics","url":"https://www.academia.edu/Documents/in/Phylogenetics?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":54433,"name":"Phylogeny","url":"https://www.academia.edu/Documents/in/Phylogeny?f_ri=24357"},{"id":96238,"name":"Palaeozoic","url":"https://www.academia.edu/Documents/in/Palaeozoic?f_ri=24357"},{"id":171492,"name":"Paleozoic","url":"https://www.academia.edu/Documents/in/Paleozoic?f_ri=24357"},{"id":245668,"name":"Arthropods","url":"https://www.academia.edu/Documents/in/Arthropods?f_ri=24357"},{"id":249738,"name":"Phylogenetic Systematics","url":"https://www.academia.edu/Documents/in/Phylogenetic_Systematics?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_39052699" data-work_id="39052699" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/39052699/Betts_M_J_Paterson_J_R_Jago_J_B_Jacquet_S_M_Skovsted_C_B_Topper_T_P_and_Brock_G_A_2017_Global_correlation_of_the_early_Cambrian_of_South_Australia_Shelly_fauna_of_the_Dailyatia_odyssei_Zone_Gondwana_Research_46_240_279">Betts, M.J., Paterson, J.R., Jago, J.B., Jacquet, S.M., Skovsted, C.B., Topper, T.P. & Brock, G.A., 2017. Global correlation of the early Cambrian of South Australia: Shelly fauna of the Dailyatia odyssei Zone. Gondwana Research, 46: 240-279.</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">A lack of well resolved biostratigraphic data has prevented robust regional and global correlation of lower Cam-brian successions from South Australia. A new early Cambrian biostratigraphy, based on data derived from 21 measured... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_39052699" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">A lack of well resolved biostratigraphic data has prevented robust regional and global correlation of lower Cam-brian successions from South Australia. A new early Cambrian biostratigraphy, based on data derived from 21 measured stratigraphic sections and drill cores (11 described herein) reveals the abundance and diversity of shelly fauna from the Arrowie Basin, and the value of early Cambrian "small shelly fossils" (SSF) for biostrati-graphic studies. Here we examine shelly fauna associated with the youngest of three recently established biozones, the Dailyatia odyssei Taxon Range Zone (hereafter D. odyssei Zone), and their correlative potential. The D. odyssei Zone features a diverse suite of tommotiids, organophosphatic brachiopods, bradoriid arthropods, molluscs and phosphatic problematica. This fauna permits strong correlation (often at species-level) with other major early Cambrian terranes, particularly Antarctica, South China and Laurentia, and suggest a Cambrian Series 2, Stages 3-4 age for the D. odyssei Zone. Bradoriids have proven to be useful biostratigraphic tools. Four new species and three new genera are described herein: Acutobalteus sinuosus gen. et sp. nov., Eozhexiella adnyamathanha gen. et sp. nov., Manawarra jonesi gen. et sp. nov. and Mongolitubulus descensus sp. nov. The description of Eohadrotreta sp. cf. zhenbaensis represents the first occurrence of the acrotretoid brachiopod Eohadrotreta from Australia.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/39052699" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="d4d620bf0ae8ff0066c796a32c7156b6" rel="nofollow" data-download="{"attachment_id":59167017,"asset_id":39052699,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/59167017/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="155425" href="https://une-au.academia.edu/JohnPaterson">John Paterson</a><script data-card-contents-for-user="155425" type="text/json">{"id":155425,"first_name":"John","last_name":"Paterson","domain_name":"une-au","page_name":"JohnPaterson","display_name":"John Paterson","profile_url":"https://une-au.academia.edu/JohnPaterson?f_ri=24357","photo":"https://0.academia-photos.com/155425/40361/37093/s65_john.paterson.jpg"}</script></span></span></li><li class="js-paper-rank-work_39052699 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="39052699"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 39052699, container: ".js-paper-rank-work_39052699", }); });</script></li><li class="js-percentile-work_39052699 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 39052699; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_39052699"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_39052699 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="39052699"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 39052699; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=39052699]").text(description); $(".js-view-count-work_39052699").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_39052699").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="39052699"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">7</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a>, <script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="78109" rel="nofollow" href="https://www.academia.edu/Documents/in/Cambrian">Cambrian</a>, <script data-card-contents-for-ri="78109" type="text/json">{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="84942" rel="nofollow" href="https://www.academia.edu/Documents/in/Small_Shelly_Fossils">Small Shelly Fossils</a><script data-card-contents-for-ri="84942" type="text/json">{"id":84942,"name":"Small Shelly Fossils","url":"https://www.academia.edu/Documents/in/Small_Shelly_Fossils?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=39052699]'), work: {"id":39052699,"title":"Betts, M.J., Paterson, J.R., Jago, J.B., Jacquet, S.M., Skovsted, C.B., Topper, T.P. \u0026 Brock, G.A., 2017. Global correlation of the early Cambrian of South Australia: Shelly fauna of the Dailyatia odyssei Zone. Gondwana Research, 46: 240-279.","created_at":"2019-05-08T00:19:27.575-07:00","url":"https://www.academia.edu/39052699/Betts_M_J_Paterson_J_R_Jago_J_B_Jacquet_S_M_Skovsted_C_B_Topper_T_P_and_Brock_G_A_2017_Global_correlation_of_the_early_Cambrian_of_South_Australia_Shelly_fauna_of_the_Dailyatia_odyssei_Zone_Gondwana_Research_46_240_279?f_ri=24357","dom_id":"work_39052699","summary":"A lack of well resolved biostratigraphic data has prevented robust regional and global correlation of lower Cam-brian successions from South Australia. A new early Cambrian biostratigraphy, based on data derived from 21 measured stratigraphic sections and drill cores (11 described herein) reveals the abundance and diversity of shelly fauna from the Arrowie Basin, and the value of early Cambrian \"small shelly fossils\" (SSF) for biostrati-graphic studies. Here we examine shelly fauna associated with the youngest of three recently established biozones, the Dailyatia odyssei Taxon Range Zone (hereafter D. odyssei Zone), and their correlative potential. The D. odyssei Zone features a diverse suite of tommotiids, organophosphatic brachiopods, bradoriid arthropods, molluscs and phosphatic problematica. This fauna permits strong correlation (often at species-level) with other major early Cambrian terranes, particularly Antarctica, South China and Laurentia, and suggest a Cambrian Series 2, Stages 3-4 age for the D. odyssei Zone. Bradoriids have proven to be useful biostratigraphic tools. Four new species and three new genera are described herein: Acutobalteus sinuosus gen. et sp. nov., Eozhexiella adnyamathanha gen. et sp. nov., Manawarra jonesi gen. et sp. nov. and Mongolitubulus descensus sp. nov. The description of Eohadrotreta sp. cf. zhenbaensis represents the first occurrence of the acrotretoid brachiopod Eohadrotreta from Australia.","downloadable_attachments":[{"id":59167017,"asset_id":39052699,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":155425,"first_name":"John","last_name":"Paterson","domain_name":"une-au","page_name":"JohnPaterson","display_name":"John Paterson","profile_url":"https://une-au.academia.edu/JohnPaterson?f_ri=24357","photo":"https://0.academia-photos.com/155425/40361/37093/s65_john.paterson.jpg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true},{"id":84942,"name":"Small Shelly Fossils","url":"https://www.academia.edu/Documents/in/Small_Shelly_Fossils?f_ri=24357","nofollow":true},{"id":208180,"name":"Geology (Palaeontology and stratigraphy of Neoproterozoic and Early Cambrian)","url":"https://www.academia.edu/Documents/in/Geology_Palaeontology_and_stratigraphy_of_Neoproterozoic_and_Early_Cambrian_?f_ri=24357"},{"id":388445,"name":"Fossil Brachiopods","url":"https://www.academia.edu/Documents/in/Fossil_Brachiopods?f_ri=24357"},{"id":1116656,"name":"Bradoriida","url":"https://www.academia.edu/Documents/in/Bradoriida?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_1781254" data-work_id="1781254" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/1781254/Silurian_odontopleurid_trilobites_from_Gotland">Silurian odontopleurid trilobites from Gotland</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/1781254" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="858fdd615b275cba3ae33ff64558a2e4" rel="nofollow" data-download="{"attachment_id":23901233,"asset_id":1781254,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/23901233/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="1287092" href="https://independent.academia.edu/LarsRamskold">Lars Ramskold</a><script data-card-contents-for-user="1287092" type="text/json">{"id":1287092,"first_name":"Lars","last_name":"Ramskold","domain_name":"independent","page_name":"LarsRamskold","display_name":"Lars Ramskold","profile_url":"https://independent.academia.edu/LarsRamskold?f_ri=24357","photo":"https://0.academia-photos.com/1287092/2015583/2377145/s65_lars.ramskold.jpg"}</script></span></span></li><li class="js-paper-rank-work_1781254 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="1781254"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 1781254, container: ".js-paper-rank-work_1781254", }); });</script></li><li class="js-percentile-work_1781254 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 1781254; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_1781254"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_1781254 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="1781254"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1781254; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=1781254]").text(description); $(".js-view-count-work_1781254").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_1781254").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="1781254"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">6</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="28160" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeontology">Palaeontology</a>, <script data-card-contents-for-ri="28160" type="text/json">{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a><script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=1781254]'), work: {"id":1781254,"title":"Silurian odontopleurid trilobites from Gotland","created_at":"2012-07-11T03:27:32.858-07:00","url":"https://www.academia.edu/1781254/Silurian_odontopleurid_trilobites_from_Gotland?f_ri=24357","dom_id":"work_1781254","summary":null,"downloadable_attachments":[{"id":23901233,"asset_id":1781254,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":1287092,"first_name":"Lars","last_name":"Ramskold","domain_name":"independent","page_name":"LarsRamskold","display_name":"Lars Ramskold","profile_url":"https://independent.academia.edu/LarsRamskold?f_ri=24357","photo":"https://0.academia-photos.com/1287092/2015583/2377145/s65_lars.ramskold.jpg"}],"research_interests":[{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":33576,"name":"Invertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Paleontology?f_ri=24357"},{"id":64643,"name":"Silurian","url":"https://www.academia.edu/Documents/in/Silurian?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_2384569" data-work_id="2384569" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/2384569/A_new_representative_of_the_lichid_genus_Ohleum_Trilobita_from_the_Eifelian">A new representative of the lichid genus Ohleum (Trilobita) from the Eifelian</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/2384569" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="076101c4a6c018fdc067b1d5fb896268" rel="nofollow" data-download="{"attachment_id":30880373,"asset_id":2384569,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/30880373/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3080998" href="https://independent.academia.edu/PeterTaghon">Peter Taghon</a><script data-card-contents-for-user="3080998" type="text/json">{"id":3080998,"first_name":"Peter","last_name":"Taghon","domain_name":"independent","page_name":"PeterTaghon","display_name":"Peter Taghon","profile_url":"https://independent.academia.edu/PeterTaghon?f_ri=24357","photo":"https://0.academia-photos.com/3080998/1012425/1265862/s65_peter.taghon.jpg"}</script></span></span></li><li class="js-paper-rank-work_2384569 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="2384569"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 2384569, container: ".js-paper-rank-work_2384569", }); });</script></li><li class="js-percentile-work_2384569 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 2384569; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_2384569"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_2384569 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="2384569"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 2384569; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=2384569]").text(description); $(".js-view-count-work_2384569").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_2384569").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="2384569"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i></div><span class="InlineList-item-text u-textTruncate u-pl6x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (false) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=2384569]'), work: {"id":2384569,"title":"A new representative of the lichid genus Ohleum (Trilobita) from the Eifelian","created_at":"2013-01-10T04:08:41.676-08:00","url":"https://www.academia.edu/2384569/A_new_representative_of_the_lichid_genus_Ohleum_Trilobita_from_the_Eifelian?f_ri=24357","dom_id":"work_2384569","summary":null,"downloadable_attachments":[{"id":30880373,"asset_id":2384569,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3080998,"first_name":"Peter","last_name":"Taghon","domain_name":"independent","page_name":"PeterTaghon","display_name":"Peter Taghon","profile_url":"https://independent.academia.edu/PeterTaghon?f_ri=24357","photo":"https://0.academia-photos.com/3080998/1012425/1265862/s65_peter.taghon.jpg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_213022 coauthored" data-work_id="213022" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/213022/The_frontal_auxiliary_impressions_and_their_potential_interest_for_the_study_of_the_digestive_system_of_trilobites">The frontal auxiliary impressions and their potential interest for the study of the digestive system of trilobites</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The digestive system of trilobites is rarely preserved. As a result, many aspects of its organization remain unknown. Fortunately, the exoskeleton sometimes preserves evidence of soft-tissue attachment sites that can be used to infer... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_213022" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The digestive system of trilobites is rarely preserved. As a result, many aspects of its organization remain unknown. Fortunately, the exoskeleton sometimes preserves evidence of soft-tissue attachment sites that can be used to infer internal anatomy. Among them are the frontal auxiliary impressions (FAIs), probable soft-tissue insertion sites located on the frontomedian glabellar lobe of some trilobites. FAIs are herein described in the Carboniferous trilobite Phillipsia belgica (Osmólska, 1970)—representing the only known example of such structures in the Proetida and their youngest occurrence. A taphonomic scenario is proposed to explain their variable preservation. Although common in the Phacopina, FAIs or FAI-like structures are found in several orders that differ greatly. Comparisons with modern analogues suggest that FAIs might represent attachment sites for extrinsic muscles associated with a differentiated crop within the foregut. A review of purported remains of trilobite digestive system indicates that it usually consisted of a tube-like tract flanked by a variable number of metamerically paired diverticulae. Its anterior portion is not particularly individualized except in a few specimens that might hint at the presence of a crop. This differentiation of a crop might have constituted a secondarily evolution of the foregut in trilobites, occurring independently in different clades. Accompanied by a strengthening of associated extrinsic muscles, this modification of the foregut might explain the presence of more conspicuous muscle insertion sites on the glabella. Study of FAIs might therefore provide new data on the anatomy of the foregut in trilobites and evidence of diverse feeding habits.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/213022" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="5bbb6e34fc2d2249a7dfb81ac8f7cd38" rel="nofollow" data-download="{"attachment_id":2844398,"asset_id":213022,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/2844398/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="31995" href="https://fredonia.academia.edu/ThomasHegna">Thomas A Hegna</a><script data-card-contents-for-user="31995" type="text/json">{"id":31995,"first_name":"Thomas","last_name":"Hegna","domain_name":"fredonia","page_name":"ThomasHegna","display_name":"Thomas A Hegna","profile_url":"https://fredonia.academia.edu/ThomasHegna?f_ri=24357","photo":"https://0.academia-photos.com/31995/10327/1639061/s65_thomas.hegna.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-213022">+2</span><div class="hidden js-additional-users-213022"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://naturalsciences-be.academia.edu/S%C3%A9bastienOlive">Sébastien Olive</a></span></div><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://une-au.academia.edu/RudyLeroseyAubril">Rudy Lerosey-Aubril</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-213022'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-213022').html(); } } new HoverPopover(popoverSettings); })();</script></li><li class="js-paper-rank-work_213022 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="213022"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 213022, container: ".js-paper-rank-work_213022", }); });</script></li><li class="js-percentile-work_213022 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 213022; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_213022"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_213022 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="213022"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 213022; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=213022]").text(description); $(".js-view-count-work_213022").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_213022").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="213022"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">3</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="162" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleobiology">Paleobiology</a>, <script data-card-contents-for-ri="162" type="text/json">{"id":162,"name":"Paleobiology","url":"https://www.academia.edu/Documents/in/Paleobiology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="4438" rel="nofollow" href="https://www.academia.edu/Documents/in/Functional_Morphology">Functional Morphology</a>, <script data-card-contents-for-ri="4438" type="text/json">{"id":4438,"name":"Functional Morphology","url":"https://www.academia.edu/Documents/in/Functional_Morphology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=213022]'), work: {"id":213022,"title":"The frontal auxiliary impressions and their potential interest for the study of the digestive system of trilobites","created_at":"2010-02-06T05:12:55.567-08:00","url":"https://www.academia.edu/213022/The_frontal_auxiliary_impressions_and_their_potential_interest_for_the_study_of_the_digestive_system_of_trilobites?f_ri=24357","dom_id":"work_213022","summary":"The digestive system of trilobites is rarely preserved. As a result, many aspects of its organization remain unknown. Fortunately, the exoskeleton sometimes preserves evidence of soft-tissue attachment sites that can be used to infer internal anatomy. Among them are the frontal auxiliary impressions (FAIs), probable soft-tissue insertion sites located on the frontomedian glabellar lobe of some trilobites. FAIs are herein described in the Carboniferous trilobite Phillipsia belgica (Osmólska, 1970)—representing the only known example of such structures in the Proetida and their youngest occurrence. A taphonomic scenario is proposed to explain their variable preservation. Although common in the Phacopina, FAIs or FAI-like structures are found in several orders that differ greatly. Comparisons with modern analogues suggest that FAIs might represent attachment sites for extrinsic muscles associated with a differentiated crop within the foregut. A review of purported remains of trilobite digestive system indicates that it usually consisted of a tube-like tract flanked by a variable number of metamerically paired diverticulae. Its anterior portion is not particularly individualized except in a few specimens that might hint at the presence of a crop. This differentiation of a crop might have constituted a secondarily evolution of the foregut in trilobites, occurring independently in different clades. Accompanied by a strengthening of associated extrinsic muscles, this modification of the foregut might explain the presence of more conspicuous muscle insertion sites on the glabella. Study of FAIs might therefore provide new data on the anatomy of the foregut in trilobites and evidence of diverse feeding habits.","downloadable_attachments":[{"id":2844398,"asset_id":213022,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":31995,"first_name":"Thomas","last_name":"Hegna","domain_name":"fredonia","page_name":"ThomasHegna","display_name":"Thomas A Hegna","profile_url":"https://fredonia.academia.edu/ThomasHegna?f_ri=24357","photo":"https://0.academia-photos.com/31995/10327/1639061/s65_thomas.hegna.jpg"},{"id":3176623,"first_name":"Sébastien","last_name":"Olive","domain_name":"naturalsciences-be","page_name":"SébastienOlive","display_name":"Sébastien Olive","profile_url":"https://naturalsciences-be.academia.edu/S%C3%A9bastienOlive?f_ri=24357","photo":"https://0.academia-photos.com/3176623/1044697/4962861/s65_s_bastien.olive.jpg"},{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}],"research_interests":[{"id":162,"name":"Paleobiology","url":"https://www.academia.edu/Documents/in/Paleobiology?f_ri=24357","nofollow":true},{"id":4438,"name":"Functional Morphology","url":"https://www.academia.edu/Documents/in/Functional_Morphology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_642649 coauthored" data-work_id="642649" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/642649/Silurian_Encrinurinae_Trilobita_from_the_central_United_States">Silurian Encrinurinae (Trilobita) from the central United States</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Silurian (Llandovery-Ludlow) Encrinurinae from Wisconsin, Indiana, and Illinois include species of Balizoma Holloway, 1980, Curiella Lamont, 1978, Distyrax Lane, 1988, Encrinurus Emmrich, 1844, Mackenziurus Edgecombe and Chatterton,... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_642649" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Silurian (Llandovery-Ludlow) Encrinurinae from Wisconsin, Indiana, and Illinois include species of Balizoma Holloway, 1980, Curiella Lamont, 1978, Distyrax Lane, 1988, Encrinurus Emmrich, 1844, Mackenziurus Edgecombe and Chatterton, 1990a, and Nucleurus Ramsköld, 1986. Mackenziurus lauriae n. sp. is described from Wenlock strata of the Racine and Sugar Run Dolomites; nine segments in the holaspid thorax are the fewest known for any encrinurid. A square rostral plate is diagnostic of Mackenziurus. New morphological data are provided by Illinois specimens of Balizoma indianensis (Kindle and Breger, 1904) from the Wenlock-Ludlow Racine Dolomite, and of Curiella tuberculifrons (Weller, 1907) from the Llandovery Elwood-Wilhelmi Formations. Nucleurus n. sp. is possibly from Llandovery strata of Wisconsin. Distyrax n. sp. occurs in the Brandon Bridge Member (late Llandovery-early Wenlock) of the Joliet Dolomite in Illinois. The type pygidia and possible topotype material of Encrinurus nereus Hall, 1867, confirm assignment to that genus as currently viewed; this reefal species is distinct from the closely related inter-reef species E. egani Miller, 1880, and appears to be distinct from reefal E. reflexus Raymond, 1916. Lectotypes are selected for those Encrinurus species.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/642649" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="f317033def8bb8752f6d57000e56a6ce" rel="nofollow" data-download="{"attachment_id":3520840,"asset_id":642649,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/3520840/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="472490" href="https://mpm.academia.edu/KennethGass">Kenneth C Gass</a><script data-card-contents-for-user="472490" type="text/json">{"id":472490,"first_name":"Kenneth","last_name":"Gass","domain_name":"mpm","page_name":"KennethGass","display_name":"Kenneth C Gass","profile_url":"https://mpm.academia.edu/KennethGass?f_ri=24357","photo":"https://0.academia-photos.com/472490/158030/800840/s65_kenneth.gass.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-642649">+1</span><div class="hidden js-additional-users-642649"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/LarsRamskold">Lars Ramskold</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-642649'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-642649').html(); } } new HoverPopover(popoverSettings); })();</script></li><li class="js-paper-rank-work_642649 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="642649"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 642649, container: ".js-paper-rank-work_642649", }); });</script></li><li class="js-percentile-work_642649 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 642649; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_642649"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_642649 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="642649"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 642649; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=642649]").text(description); $(".js-view-count-work_642649").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_642649").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="642649"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">9</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="155" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolutionary_Biology">Evolutionary Biology</a>, <script data-card-contents-for-ri="155" type="text/json">{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="406" rel="nofollow" href="https://www.academia.edu/Documents/in/Geology">Geology</a>, <script data-card-contents-for-ri="406" type="text/json">{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="417" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleontology">Paleontology</a>, <script data-card-contents-for-ri="417" type="text/json">{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="9846" rel="nofollow" href="https://www.academia.edu/Documents/in/Ecology">Ecology</a><script data-card-contents-for-ri="9846" type="text/json">{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=642649]'), work: {"id":642649,"title":"Silurian Encrinurinae (Trilobita) from the central United States","created_at":"2011-06-04T13:38:40.532-07:00","url":"https://www.academia.edu/642649/Silurian_Encrinurinae_Trilobita_from_the_central_United_States?f_ri=24357","dom_id":"work_642649","summary":"Silurian (Llandovery-Ludlow) Encrinurinae from Wisconsin, Indiana, and Illinois include species of Balizoma Holloway, 1980, Curiella Lamont, 1978, Distyrax Lane, 1988, Encrinurus Emmrich, 1844, Mackenziurus Edgecombe and Chatterton, 1990a, and Nucleurus Ramsköld, 1986. Mackenziurus lauriae n. sp. is described from Wenlock strata of the Racine and Sugar Run Dolomites; nine segments in the holaspid thorax are the fewest known for any encrinurid. A square rostral plate is diagnostic of Mackenziurus. New morphological data are provided by Illinois specimens of Balizoma indianensis (Kindle and Breger, 1904) from the Wenlock-Ludlow Racine Dolomite, and of Curiella tuberculifrons (Weller, 1907) from the Llandovery Elwood-Wilhelmi Formations. Nucleurus n. sp. is possibly from Llandovery strata of Wisconsin. Distyrax n. sp. occurs in the Brandon Bridge Member (late Llandovery-early Wenlock) of the Joliet Dolomite in Illinois. The type pygidia and possible topotype material of Encrinurus nereus Hall, 1867, confirm assignment to that genus as currently viewed; this reefal species is distinct from the closely related inter-reef species E. egani Miller, 1880, and appears to be distinct from reefal E. reflexus Raymond, 1916. Lectotypes are selected for those Encrinurus species.","downloadable_attachments":[{"id":3520840,"asset_id":642649,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":472490,"first_name":"Kenneth","last_name":"Gass","domain_name":"mpm","page_name":"KennethGass","display_name":"Kenneth C Gass","profile_url":"https://mpm.academia.edu/KennethGass?f_ri=24357","photo":"https://0.academia-photos.com/472490/158030/800840/s65_kenneth.gass.jpg"},{"id":1287092,"first_name":"Lars","last_name":"Ramskold","domain_name":"independent","page_name":"LarsRamskold","display_name":"Lars Ramskold","profile_url":"https://independent.academia.edu/LarsRamskold?f_ri=24357","photo":"https://0.academia-photos.com/1287092/2015583/2377145/s65_lars.ramskold.jpg"}],"research_interests":[{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357","nofollow":true},{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357","nofollow":true},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357"},{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357"},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":33576,"name":"Invertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Paleontology?f_ri=24357"},{"id":64643,"name":"Silurian","url":"https://www.academia.edu/Documents/in/Silurian?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_8955497" data-work_id="8955497" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/8955497/Fakten_und_Kuriosit%C3%A4ten_zur_Trilobiten_Taxonomie">Fakten und Kuriositäten zur Trilobiten-Taxonomie</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/8955497" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="6fb61e8c9f5ca67c704918fda3761008" rel="nofollow" data-download="{"attachment_id":35274194,"asset_id":8955497,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/35274194/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3042744" href="https://univie.academia.edu/MatthiasSvojtka">Matthias Svojtka</a><script data-card-contents-for-user="3042744" type="text/json">{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}</script></span></span></li><li class="js-paper-rank-work_8955497 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="8955497"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 8955497, container: ".js-paper-rank-work_8955497", }); });</script></li><li class="js-percentile-work_8955497 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 8955497; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_8955497"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_8955497 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="8955497"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 8955497; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=8955497]").text(description); $(".js-view-count-work_8955497").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_8955497").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="8955497"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="169" rel="nofollow" href="https://www.academia.edu/Documents/in/Systematics_Taxonomy_">Systematics (Taxonomy)</a>, <script data-card-contents-for-ri="169" type="text/json">{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a>, <script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="94388" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobite">Trilobite</a><script data-card-contents-for-ri="94388" type="text/json">{"id":94388,"name":"Trilobite","url":"https://www.academia.edu/Documents/in/Trilobite?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=8955497]'), work: {"id":8955497,"title":"Fakten und Kuriositäten zur Trilobiten-Taxonomie","created_at":"2014-10-25T05:54:00.529-07:00","url":"https://www.academia.edu/8955497/Fakten_und_Kuriosit%C3%A4ten_zur_Trilobiten_Taxonomie?f_ri=24357","dom_id":"work_8955497","summary":null,"downloadable_attachments":[{"id":35274194,"asset_id":8955497,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}],"research_interests":[{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":94388,"name":"Trilobite","url":"https://www.academia.edu/Documents/in/Trilobite?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_7721751" data-work_id="7721751" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/7721751/Systematics_taphonomy_and_paleoecology_of_homalonotid_trilobites_Phacopida_from_the_Ponta_Grossa_Formation">Systematics, taphonomy, and paleoecology of homalonotid trilobites (Phacopida) from the Ponta Grossa Formation</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/7721751" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="ef12f1f20df5a5db31303b4610668718" rel="nofollow" data-download="{"attachment_id":34246842,"asset_id":7721751,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/34246842/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="14135484" href="https://independent.academia.edu/SabrinaSoares4">Sabrina Soares</a><script data-card-contents-for-user="14135484" type="text/json">{"id":14135484,"first_name":"Sabrina","last_name":"Soares","domain_name":"independent","page_name":"SabrinaSoares4","display_name":"Sabrina Soares","profile_url":"https://independent.academia.edu/SabrinaSoares4?f_ri=24357","photo":"https://0.academia-photos.com/14135484/7014992/7908975/s65_sabrina.soares.jpg"}</script></span></span></li><li class="js-paper-rank-work_7721751 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="7721751"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 7721751, container: ".js-paper-rank-work_7721751", }); });</script></li><li class="js-percentile-work_7721751 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 7721751; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_7721751"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_7721751 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="7721751"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 7721751; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=7721751]").text(description); $(".js-view-count-work_7721751").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_7721751").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="7721751"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">8</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="7101" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleoecology">Paleoecology</a>, <script data-card-contents-for-ri="7101" type="text/json">{"id":7101,"name":"Paleoecology","url":"https://www.academia.edu/Documents/in/Paleoecology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="15780" rel="nofollow" href="https://www.academia.edu/Documents/in/Taphonomy">Taphonomy</a>, <script data-card-contents-for-ri="15780" type="text/json">{"id":15780,"name":"Taphonomy","url":"https://www.academia.edu/Documents/in/Taphonomy?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17824" rel="nofollow" href="https://www.academia.edu/Documents/in/Systematics">Systematics</a>, <script data-card-contents-for-ri="17824" type="text/json">{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=7721751]'), work: {"id":7721751,"title":"Systematics, taphonomy, and paleoecology of homalonotid trilobites (Phacopida) from the Ponta Grossa Formation","created_at":"2014-07-20T05:09:09.455-07:00","url":"https://www.academia.edu/7721751/Systematics_taphonomy_and_paleoecology_of_homalonotid_trilobites_Phacopida_from_the_Ponta_Grossa_Formation?f_ri=24357","dom_id":"work_7721751","summary":null,"downloadable_attachments":[{"id":34246842,"asset_id":7721751,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":14135484,"first_name":"Sabrina","last_name":"Soares","domain_name":"independent","page_name":"SabrinaSoares4","display_name":"Sabrina Soares","profile_url":"https://independent.academia.edu/SabrinaSoares4?f_ri=24357","photo":"https://0.academia-photos.com/14135484/7014992/7908975/s65_sabrina.soares.jpg"}],"research_interests":[{"id":7101,"name":"Paleoecology","url":"https://www.academia.edu/Documents/in/Paleoecology?f_ri=24357","nofollow":true},{"id":15780,"name":"Taphonomy","url":"https://www.academia.edu/Documents/in/Taphonomy?f_ri=24357","nofollow":true},{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":76748,"name":"Devonian","url":"https://www.academia.edu/Documents/in/Devonian?f_ri=24357"},{"id":105637,"name":"Taphonomy and Paleoecology","url":"https://www.academia.edu/Documents/in/Taphonomy_and_Paleoecology?f_ri=24357"},{"id":320020,"name":"Revista Brasileira de Paleontologia","url":"https://www.academia.edu/Documents/in/Revista_Brasileira_de_Paleontologia?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_75569753" data-work_id="75569753" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/75569753/Unexpectedly_curved_spines_in_a_Cambrian_trilobite_considerations_on_the_spinosity_in_Kingaspidoides_spinirecurvatus_sp_nov_from_the_Anti_Atlas_Morocco_and_related_Cambrian_ellipsocephaloids">Unexpectedly curved spines in a Cambrian trilobite: considerations on the spinosity in Kingaspidoides spinirecurvatus sp. nov. from the Anti-Atlas, Morocco, and related Cambrian ellipsocephaloids</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The new ellipsocephaloid trilobite species Kingaspidoides spinirecurvatus has a spectacular morphology because of a unique set of two long and anteriorly recurved spines on the occipital ring and the axial ring of thoracic segment 8.... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_75569753" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The new ellipsocephaloid trilobite species Kingaspidoides spinirecurvatus has a spectacular morphology because of a unique set of two long and anteriorly recurved spines on the occipital ring and the axial ring of thoracic segment 8. Together with the long genal spines this whimsical dorsally directed spine arrangement is thought to act as a non-standard protective device against predators. This is illustrated by the body posture during different stages of enrolment, contrasting with the more sophisticated spinosities seen in later trilobites, which are discussed in brief. Kingaspidoides spinirecurvatus from the lower–middle Cambrian boundary interval of the eastern Anti-Atlas in Morocco has been known for about two decades, with specimens handled as precious objects on the fossil market. Similar, but far less spectacular, spine arrangements on the thoracic axial rings are known from other ellipsocephaloid trilobites from the Anti-Atlas of Morocco and the Franconian Forest region of...</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/75569753" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="84ce6b67ac1df895c9528e747f18c571" rel="nofollow" data-download="{"attachment_id":83285618,"asset_id":75569753,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/83285618/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="2548345" href="https://ulisboa.academia.edu/MiguelCaldeiraPais">Miguel Caldeira Pais - Mediterranic™</a><script data-card-contents-for-user="2548345" type="text/json">{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}</script></span></span></li><li class="js-paper-rank-work_75569753 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="75569753"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 75569753, container: ".js-paper-rank-work_75569753", }); });</script></li><li class="js-percentile-work_75569753 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 75569753; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_75569753"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_75569753 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="75569753"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 75569753; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=75569753]").text(description); $(".js-view-count-work_75569753").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_75569753").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="75569753"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">9</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="155" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolutionary_Biology">Evolutionary Biology</a>, <script data-card-contents-for-ri="155" type="text/json">{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="406" rel="nofollow" href="https://www.academia.edu/Documents/in/Geology">Geology</a>, <script data-card-contents-for-ri="406" type="text/json">{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="9846" rel="nofollow" href="https://www.academia.edu/Documents/in/Ecology">Ecology</a>, <script data-card-contents-for-ri="9846" type="text/json">{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="10770" rel="nofollow" href="https://www.academia.edu/Documents/in/Biostratigraphy">Biostratigraphy</a><script data-card-contents-for-ri="10770" type="text/json">{"id":10770,"name":"Biostratigraphy","url":"https://www.academia.edu/Documents/in/Biostratigraphy?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=75569753]'), work: {"id":75569753,"title":"Unexpectedly curved spines in a Cambrian trilobite: considerations on the spinosity in Kingaspidoides spinirecurvatus sp. nov. from the Anti-Atlas, Morocco, and related Cambrian ellipsocephaloids","created_at":"2022-04-05T16:05:18.541-07:00","url":"https://www.academia.edu/75569753/Unexpectedly_curved_spines_in_a_Cambrian_trilobite_considerations_on_the_spinosity_in_Kingaspidoides_spinirecurvatus_sp_nov_from_the_Anti_Atlas_Morocco_and_related_Cambrian_ellipsocephaloids?f_ri=24357","dom_id":"work_75569753","summary":"The new ellipsocephaloid trilobite species Kingaspidoides spinirecurvatus has a spectacular morphology because of a unique set of two long and anteriorly recurved spines on the occipital ring and the axial ring of thoracic segment 8. Together with the long genal spines this whimsical dorsally directed spine arrangement is thought to act as a non-standard protective device against predators. This is illustrated by the body posture during different stages of enrolment, contrasting with the more sophisticated spinosities seen in later trilobites, which are discussed in brief. Kingaspidoides spinirecurvatus from the lower–middle Cambrian boundary interval of the eastern Anti-Atlas in Morocco has been known for about two decades, with specimens handled as precious objects on the fossil market. Similar, but far less spectacular, spine arrangements on the thoracic axial rings are known from other ellipsocephaloid trilobites from the Anti-Atlas of Morocco and the Franconian Forest region of...","downloadable_attachments":[{"id":83285618,"asset_id":75569753,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}],"research_interests":[{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357","nofollow":true},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology?f_ri=24357","nofollow":true},{"id":10770,"name":"Biostratigraphy","url":"https://www.academia.edu/Documents/in/Biostratigraphy?f_ri=24357","nofollow":true},{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357"},{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357"},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357"},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357"},{"id":1011672,"name":"West Gondwana","url":"https://www.academia.edu/Documents/in/West_Gondwana?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_50201194" data-work_id="50201194" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/50201194/A_new_nevadiid_trilobite_recognized_from_Sonora_Mexico">A new nevadiid trilobite recognized from Sonora, Mexico</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/50201194" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="208d273143420fc5b4d3d75c648ffeed" rel="nofollow" data-download="{"attachment_id":68275579,"asset_id":50201194,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/68275579/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="1807492" href="https://mtholyoke.academia.edu/MarkMcMenamin">Mark McMenamin</a><script data-card-contents-for-user="1807492" type="text/json">{"id":1807492,"first_name":"Mark","last_name":"McMenamin","domain_name":"mtholyoke","page_name":"MarkMcMenamin","display_name":"Mark McMenamin","profile_url":"https://mtholyoke.academia.edu/MarkMcMenamin?f_ri=24357","photo":"https://0.academia-photos.com/1807492/617264/766249/s65_mark.mcmenamin.jpg"}</script></span></span></li><li class="js-paper-rank-work_50201194 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="50201194"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 50201194, container: ".js-paper-rank-work_50201194", }); });</script></li><li class="js-percentile-work_50201194 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 50201194; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_50201194"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_50201194 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="50201194"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 50201194; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=50201194]").text(description); $(".js-view-count-work_50201194").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_50201194").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="50201194"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">5</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a>, <script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="78109" rel="nofollow" href="https://www.academia.edu/Documents/in/Cambrian">Cambrian</a>, <script data-card-contents-for-ri="78109" type="text/json">{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="244904" rel="nofollow" href="https://www.academia.edu/Documents/in/Cambrian_explosion">Cambrian explosion</a><script data-card-contents-for-ri="244904" type="text/json">{"id":244904,"name":"Cambrian explosion","url":"https://www.academia.edu/Documents/in/Cambrian_explosion?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=50201194]'), work: {"id":50201194,"title":"A new nevadiid trilobite recognized from Sonora, Mexico","created_at":"2021-07-23T12:02:13.729-07:00","url":"https://www.academia.edu/50201194/A_new_nevadiid_trilobite_recognized_from_Sonora_Mexico?f_ri=24357","dom_id":"work_50201194","summary":null,"downloadable_attachments":[{"id":68275579,"asset_id":50201194,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":1807492,"first_name":"Mark","last_name":"McMenamin","domain_name":"mtholyoke","page_name":"MarkMcMenamin","display_name":"Mark McMenamin","profile_url":"https://mtholyoke.academia.edu/MarkMcMenamin?f_ri=24357","photo":"https://0.academia-photos.com/1807492/617264/766249/s65_mark.mcmenamin.jpg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true},{"id":244904,"name":"Cambrian explosion","url":"https://www.academia.edu/Documents/in/Cambrian_explosion?f_ri=24357","nofollow":true},{"id":790647,"name":"Homeotic Genes","url":"https://www.academia.edu/Documents/in/Homeotic_Genes?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_44773119" data-work_id="44773119" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/44773119/Trilobiten">Trilobiten</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Trilobiten sind eine ausgestorbene, rein auf das Erdaltertum (Paläozoikum) beschränkte Gruppe mariner Arthropoden (Gliedertiere). Heute noch lebende Arthropoden sind die Crustacea (Krebstiere), die Chelicerata (Spinnentiere), die... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_44773119" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Trilobiten sind eine ausgestorbene, rein auf das Erdaltertum (Paläozoikum) beschränkte Gruppe mariner Arthropoden (Gliedertiere). Heute noch lebende Arthropoden sind die Crustacea (Krebstiere), die Chelicerata (Spinnentiere), die *Myriapoda* (Tausendfüßler) und die Insecta (Insekten). Sie sind vom unteren Kambrium (560 Mio. Jahre vor heute) bis in das obere Perm (250 Mio. Jahre vor heute) nachgewiesen. Ihr Panzer besteht, wie auch bei anderen Gliedertieren, aus Chitin und Proteinen, allerdings werden bei den Trilobiten Calciumsalze in diese Cuticula eingelagert (sie wird "calcifiziert"), wodurch sich ihre fossile Erhaltungsfähigkeit wesentlich erhöht. Die Trilobiten bilden daher die weitaus wichtigste Gruppe paläozoischer Arthropoden. Durch ihren großen Formen-und Individuenreichtum, zusammen mit hoher Evolutionsrate und meist guter Bestimmbarkeit stellen sie wichtige Leitfossilien in Kambrium und Ordovicium dar, später sind sie nur mehr von lokal-stratigraphischer Bedeutung. Morphologie des Dorsalpanzers Calcifizierte Panzerteile sind die gesamte Dorsalseite (Rückenseite), der Umschlag (ventrale randliche Fortsetzung des Panzers) und das Hypostom (präorale Mundplatte). Die weichhäutigen Ventralstrukturen (Antennen, Spaltbeine, ventrale Körperdecke) sind paläontologisch äußerst selten überliefert. Der Dorsalpanzer ist durch die beiden Dorsalfurchen (Rückenfurchen; b.4; im folgenden beziehen sich alle Buchstaben-und Nummernverweise auf die Bildtafel, Fig.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/44773119" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="23e4487e1de1fc31303fe94101458ede" rel="nofollow" data-download="{"attachment_id":65263956,"asset_id":44773119,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/65263956/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3042744" href="https://univie.academia.edu/MatthiasSvojtka">Matthias Svojtka</a><script data-card-contents-for-user="3042744" type="text/json">{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}</script></span></span></li><li class="js-paper-rank-work_44773119 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="44773119"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 44773119, container: ".js-paper-rank-work_44773119", }); });</script></li><li class="js-percentile-work_44773119 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 44773119; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_44773119"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_44773119 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="44773119"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 44773119; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=44773119]").text(description); $(".js-view-count-work_44773119").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_44773119").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="44773119"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">3</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="162" rel="nofollow" href="https://www.academia.edu/Documents/in/Paleobiology">Paleobiology</a>, <script data-card-contents-for-ri="162" type="text/json">{"id":162,"name":"Paleobiology","url":"https://www.academia.edu/Documents/in/Paleobiology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a><script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=44773119]'), work: {"id":44773119,"title":"Trilobiten","created_at":"2020-12-25T08:58:18.927-08:00","url":"https://www.academia.edu/44773119/Trilobiten?f_ri=24357","dom_id":"work_44773119","summary":"Trilobiten sind eine ausgestorbene, rein auf das Erdaltertum (Paläozoikum) beschränkte Gruppe mariner Arthropoden (Gliedertiere). Heute noch lebende Arthropoden sind die Crustacea (Krebstiere), die Chelicerata (Spinnentiere), die *Myriapoda* (Tausendfüßler) und die Insecta (Insekten). Sie sind vom unteren Kambrium (560 Mio. Jahre vor heute) bis in das obere Perm (250 Mio. Jahre vor heute) nachgewiesen. Ihr Panzer besteht, wie auch bei anderen Gliedertieren, aus Chitin und Proteinen, allerdings werden bei den Trilobiten Calciumsalze in diese Cuticula eingelagert (sie wird \"calcifiziert\"), wodurch sich ihre fossile Erhaltungsfähigkeit wesentlich erhöht. Die Trilobiten bilden daher die weitaus wichtigste Gruppe paläozoischer Arthropoden. Durch ihren großen Formen-und Individuenreichtum, zusammen mit hoher Evolutionsrate und meist guter Bestimmbarkeit stellen sie wichtige Leitfossilien in Kambrium und Ordovicium dar, später sind sie nur mehr von lokal-stratigraphischer Bedeutung. Morphologie des Dorsalpanzers Calcifizierte Panzerteile sind die gesamte Dorsalseite (Rückenseite), der Umschlag (ventrale randliche Fortsetzung des Panzers) und das Hypostom (präorale Mundplatte). Die weichhäutigen Ventralstrukturen (Antennen, Spaltbeine, ventrale Körperdecke) sind paläontologisch äußerst selten überliefert. Der Dorsalpanzer ist durch die beiden Dorsalfurchen (Rückenfurchen; b.4; im folgenden beziehen sich alle Buchstaben-und Nummernverweise auf die Bildtafel, Fig.","downloadable_attachments":[{"id":65263956,"asset_id":44773119,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}],"research_interests":[{"id":162,"name":"Paleobiology","url":"https://www.academia.edu/Documents/in/Paleobiology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_39052916" data-work_id="39052916" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/39052916/Smith_P_M_Paterson_J_R_and_Brock_G_A_2018_Trilobites_and_agnostids_from_the_Goyder_Formation_Cambrian_Series_3_Guzhangian_Mindyallan_Amadeus_Basin_central_Australia_Zootaxa_4396_1_1_67">Smith, P.M., Paterson, J.R. & Brock, G.A., 2018. Trilobites and agnostids from the Goyder Formation (Cambrian Series 3, Guzhangian; Mindyallan), Amadeus Basin, central Australia. Zootaxa, 4396(1): 1-67.</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/39052916" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="2fd80c122455fb2e1fc5d5cb89d5b8b0" rel="nofollow" data-download="{"attachment_id":59167170,"asset_id":39052916,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/59167170/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="155425" href="https://une-au.academia.edu/JohnPaterson">John Paterson</a><script data-card-contents-for-user="155425" type="text/json">{"id":155425,"first_name":"John","last_name":"Paterson","domain_name":"une-au","page_name":"JohnPaterson","display_name":"John Paterson","profile_url":"https://une-au.academia.edu/JohnPaterson?f_ri=24357","photo":"https://0.academia-photos.com/155425/40361/37093/s65_john.paterson.jpg"}</script></span></span></li><li class="js-paper-rank-work_39052916 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="39052916"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 39052916, container: ".js-paper-rank-work_39052916", }); });</script></li><li class="js-percentile-work_39052916 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 39052916; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_39052916"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_39052916 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="39052916"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 39052916; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=39052916]").text(description); $(".js-view-count-work_39052916").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_39052916").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="39052916"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">5</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a>, <script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="78109" rel="nofollow" href="https://www.academia.edu/Documents/in/Cambrian">Cambrian</a>, <script data-card-contents-for-ri="78109" type="text/json">{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="98467" rel="nofollow" href="https://www.academia.edu/Documents/in/Cambrian-Devonian_trilobites">Cambrian-Devonian trilobites</a><script data-card-contents-for-ri="98467" type="text/json">{"id":98467,"name":"Cambrian-Devonian trilobites","url":"https://www.academia.edu/Documents/in/Cambrian-Devonian_trilobites?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=39052916]'), work: {"id":39052916,"title":"Smith, P.M., Paterson, J.R. \u0026 Brock, G.A., 2018. Trilobites and agnostids from the Goyder Formation (Cambrian Series 3, Guzhangian; Mindyallan), Amadeus Basin, central Australia. Zootaxa, 4396(1): 1-67.","created_at":"2019-05-08T00:30:21.203-07:00","url":"https://www.academia.edu/39052916/Smith_P_M_Paterson_J_R_and_Brock_G_A_2018_Trilobites_and_agnostids_from_the_Goyder_Formation_Cambrian_Series_3_Guzhangian_Mindyallan_Amadeus_Basin_central_Australia_Zootaxa_4396_1_1_67?f_ri=24357","dom_id":"work_39052916","summary":null,"downloadable_attachments":[{"id":59167170,"asset_id":39052916,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":155425,"first_name":"John","last_name":"Paterson","domain_name":"une-au","page_name":"JohnPaterson","display_name":"John Paterson","profile_url":"https://une-au.academia.edu/JohnPaterson?f_ri=24357","photo":"https://0.academia-photos.com/155425/40361/37093/s65_john.paterson.jpg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true},{"id":98467,"name":"Cambrian-Devonian trilobites","url":"https://www.academia.edu/Documents/in/Cambrian-Devonian_trilobites?f_ri=24357","nofollow":true},{"id":870553,"name":"Cambrian Trilobites","url":"https://www.academia.edu/Documents/in/Cambrian_Trilobites?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_24984004" data-work_id="24984004" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/24984004/The_Ordovician_trilobite_genus_Hemiarges_Lichidae_Trochurinae_from_North_America_and_Greenland">The Ordovician trilobite genus Hemiarges (Lichidae: Trochurinae) from North America and Greenland</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/24984004" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="fd7711aaba2fffea0d3ab6098f45ba00" rel="nofollow" data-download="{"attachment_id":45312416,"asset_id":24984004,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/45312416/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="1063302" href="https://rom.academia.edu/DaveRudkin">Dave Rudkin</a><script data-card-contents-for-user="1063302" type="text/json">{"id":1063302,"first_name":"Dave","last_name":"Rudkin","domain_name":"rom","page_name":"DaveRudkin","display_name":"Dave Rudkin","profile_url":"https://rom.academia.edu/DaveRudkin?f_ri=24357","photo":"https://0.academia-photos.com/1063302/2799133/17951686/s65_dave.rudkin.jpeg"}</script></span></span></li><li class="js-paper-rank-work_24984004 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="24984004"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 24984004, container: ".js-paper-rank-work_24984004", }); });</script></li><li class="js-percentile-work_24984004 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 24984004; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_24984004"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_24984004 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="24984004"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 24984004; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=24984004]").text(description); $(".js-view-count-work_24984004").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_24984004").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="24984004"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">2</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="169" rel="nofollow" href="https://www.academia.edu/Documents/in/Systematics_Taxonomy_">Systematics (Taxonomy)</a>, <script data-card-contents-for-ri="169" type="text/json">{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=24984004]'), work: {"id":24984004,"title":"The Ordovician trilobite genus Hemiarges (Lichidae: Trochurinae) from North America and Greenland","created_at":"2016-05-03T06:45:30.738-07:00","url":"https://www.academia.edu/24984004/The_Ordovician_trilobite_genus_Hemiarges_Lichidae_Trochurinae_from_North_America_and_Greenland?f_ri=24357","dom_id":"work_24984004","summary":null,"downloadable_attachments":[{"id":45312416,"asset_id":24984004,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":1063302,"first_name":"Dave","last_name":"Rudkin","domain_name":"rom","page_name":"DaveRudkin","display_name":"Dave Rudkin","profile_url":"https://rom.academia.edu/DaveRudkin?f_ri=24357","photo":"https://0.academia-photos.com/1063302/2799133/17951686/s65_dave.rudkin.jpeg"}],"research_interests":[{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_45321123" data-work_id="45321123" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/45321123/Paterson_J_R_2020_The_trouble_with_trilobites_classification_phylogeny_and_the_cryptogenesis_problem_Geological_Magazine_157_1_35_46">Paterson, J.R., 2020. The trouble with trilobites: classification, phylogeny and the cryptogenesis problem. Geological Magazine, 157(1): 35–46.</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Trilobites are an iconic group of extinct arthropods that lived in Palaeozoic oceans for c. 270 Ma, before their demise at the end of the Permian Period. Despite their considerable diversity (> 22 000 species) and abundance, particularly... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_45321123" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Trilobites are an iconic group of extinct arthropods that lived in Palaeozoic oceans for c. 270 Ma, before their demise at the end of the Permian Period. Despite their considerable diversity (> 22 000 species) and abundance, particularly in Cambrian and Ordovician rocks, as well as intensive study for well over 200 years, trilobite systematics remains in a state of flux. In this contribution, the complex history of trilobite classification over the last century is briefly reviewed, including the seminal scheme published by Henry Swinnerton in 1915. The cryptogenesis problem, which relates to the supposedly obscure phylogenetic links between major post-Cambrian trilobite clades and their Cambrian sister taxa, is also discussed. Previous studies have suggested that the cryptogenesis problem is largely a taxonomic artefact, but the Cambrian origins of some post-Cambrian groups, such as the orders Proetida and Odontopleurida, are still unclear. Future directions for research on trilobite systematics are outlined, from taxonomic studies involving comprehensive documentation and extensive illustration of morphology at the species level, through to broad-scale phylogenetic analyses that initiate or test hypotheses about relationships across the major groups. Other ongoing issues to be addressed include identifying the sister group of Trilobita, and determining whether certain taxa, such as the suborder Agnostina and Cambrian family Burlingiidae, represent trilobites.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/45321123" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="bd51360f3e458dcadd87d48d6070d0a2" rel="nofollow" data-download="{"attachment_id":65866048,"asset_id":45321123,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/65866048/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="155425" href="https://une-au.academia.edu/JohnPaterson">John Paterson</a><script data-card-contents-for-user="155425" type="text/json">{"id":155425,"first_name":"John","last_name":"Paterson","domain_name":"une-au","page_name":"JohnPaterson","display_name":"John Paterson","profile_url":"https://une-au.academia.edu/JohnPaterson?f_ri=24357","photo":"https://0.academia-photos.com/155425/40361/37093/s65_john.paterson.jpg"}</script></span></span></li><li class="js-paper-rank-work_45321123 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="45321123"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 45321123, container: ".js-paper-rank-work_45321123", }); });</script></li><li class="js-percentile-work_45321123 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 45321123; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_45321123"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_45321123 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="45321123"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 45321123; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=45321123]").text(description); $(".js-view-count-work_45321123").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_45321123").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="45321123"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">6</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="169" rel="nofollow" href="https://www.academia.edu/Documents/in/Systematics_Taxonomy_">Systematics (Taxonomy)</a>, <script data-card-contents-for-ri="169" type="text/json">{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a>, <script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="78109" rel="nofollow" href="https://www.academia.edu/Documents/in/Cambrian">Cambrian</a><script data-card-contents-for-ri="78109" type="text/json">{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=45321123]'), work: {"id":45321123,"title":"Paterson, J.R., 2020. The trouble with trilobites: classification, phylogeny and the cryptogenesis problem. Geological Magazine, 157(1): 35–46.","created_at":"2021-03-02T21:26:34.632-08:00","url":"https://www.academia.edu/45321123/Paterson_J_R_2020_The_trouble_with_trilobites_classification_phylogeny_and_the_cryptogenesis_problem_Geological_Magazine_157_1_35_46?f_ri=24357","dom_id":"work_45321123","summary":"Trilobites are an iconic group of extinct arthropods that lived in Palaeozoic oceans for c. 270 Ma, before their demise at the end of the Permian Period. Despite their considerable diversity (\u003e 22 000 species) and abundance, particularly in Cambrian and Ordovician rocks, as well as intensive study for well over 200 years, trilobite systematics remains in a state of flux. In this contribution, the complex history of trilobite classification over the last century is briefly reviewed, including the seminal scheme published by Henry Swinnerton in 1915. The cryptogenesis problem, which relates to the supposedly obscure phylogenetic links between major post-Cambrian trilobite clades and their Cambrian sister taxa, is also discussed. Previous studies have suggested that the cryptogenesis problem is largely a taxonomic artefact, but the Cambrian origins of some post-Cambrian groups, such as the orders Proetida and Odontopleurida, are still unclear. Future directions for research on trilobite systematics are outlined, from taxonomic studies involving comprehensive documentation and extensive illustration of morphology at the species level, through to broad-scale phylogenetic analyses that initiate or test hypotheses about relationships across the major groups. Other ongoing issues to be addressed include identifying the sister group of Trilobita, and determining whether certain taxa, such as the suborder Agnostina and Cambrian family Burlingiidae, represent trilobites.","downloadable_attachments":[{"id":65866048,"asset_id":45321123,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":155425,"first_name":"John","last_name":"Paterson","domain_name":"une-au","page_name":"JohnPaterson","display_name":"John Paterson","profile_url":"https://une-au.academia.edu/JohnPaterson?f_ri=24357","photo":"https://0.academia-photos.com/155425/40361/37093/s65_john.paterson.jpg"}],"research_interests":[{"id":169,"name":"Systematics (Taxonomy)","url":"https://www.academia.edu/Documents/in/Systematics_Taxonomy_?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357","nofollow":true},{"id":79166,"name":"Ordovician","url":"https://www.academia.edu/Documents/in/Ordovician?f_ri=24357"},{"id":249738,"name":"Phylogenetic Systematics","url":"https://www.academia.edu/Documents/in/Phylogenetic_Systematics?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_5274442" data-work_id="5274442" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/5274442/Die_Trilobitensammlung_der_Universit%C3%A4t_Wien_eine_Revision_mit_Beitr%C3%A4gen_zur_Stammesgeschichte_der_Trilobita">Die Trilobitensammlung der Universität Wien: eine Revision mit Beiträgen zur Stammesgeschichte der Trilobita</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">A REVISION OF THE UNIVERSITY OF VIENNA’S TRILOBITE COLLECTION: A COMPILING CATALOGUE WITH ADDITIONAL INFORMATION ON THE PHYLOGENETIC POSITION OF THE TRILOBITA. Trilobites have been known some 15.000 years. Although the group is not as... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_5274442" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">A REVISION OF THE UNIVERSITY OF VIENNA’S TRILOBITE COLLECTION: A COMPILING CATALOGUE WITH ADDITIONAL INFORMATION ON THE PHYLOGENETIC POSITION OF THE TRILOBITA. <br />Trilobites have been known some 15.000 years. Although the group is not as important in a cultural sense as for example, molluscs, trilobites have been used as cultic objects by certain Indian tribes of North and South America, as amulets and jewellery by Europeans; they are even mentioned  in literature and poetry. <br />WALCH introduced the name ”Trilobites” in 1771; since then highly different views concerning their zoological position have been discussed, and even at present their exact phylogenetic position remains an unsolved problem. In 1939 and in the following years STØRMER reconstructed the morphology of the trilobite biramous limb: he believed in the presence of a precoxa on the protopodite, to which the outer branch of the biramous appendage is attached. If this is true, the trilobite exite should be a pre-epipodite and therefore cannot be homologous to the crustacean exite, which is a true exopodite originating from the basis. In STØRMER’s view this trilobite-type limb is an important characteristic uniting Trilobitomorpha and Chelicerata (the ”Arachnomorpha” or ”Arachnata” concept), the latter having primary biramous appendages, as indicated by xiphosuran limbs with a small remaining exite. None of the following studies, however, was able to prove the existence of STØRMER’s precoxa. According to new findings in stem-lineage crustaceans it is highly probable that neither Lamellipedia (= new appropriate name for ”Trilobitomorpha”) nor Chelicerata possess a true coxa (in the crustacean sense), their protopodite therefore being homologous to the basis of Crustacea. The important characteristics of the trilobite-type appendage are that the exopodite (exite of basis) bears long, flattened setae; these setae are directed away from the endopodite. Trilobite-type and crustacean-type biramous limbs are clearly homologous structures, originating from a simple construction of schizoramous appendage as shown in the proschizoramian Fuxianhuia. Neither do additional characteristics like cephalisation, pygidium and facial sutures prove a closer relationship of Lamellipedia and Chelicerata. At present the Lamellipedia are best treated as an independent subphylum of the phylum Arthropoda, with no closer connection to the Chelicerata than to the Crustacea. Rejecting the Uniramia-hypothesis the Arthropoda as a whole are considered to be monophyletic. <br />During the work on the trilobite collection, every fossil was cleaned, classified, and labelled. The specimens are now housed adequately in sealed plastic bags or showcases. The trilobite collection consists of 1411 fossils mainly from the Czech Republic (1091 specimens), but also from other countries such as Germany, Austria, Sweden, Great Britain, the United States of America, Russia, Estonia, Italy, Morocco and France. These objects were brought together by a variety of different people, some of them important palaeontologists: Othenio ABEL, Ignaz HAWLE, Jaroslav J. JAHN, Rudolf KNER, Valerian von MÖLLER and Ottomar P. NOVÁK; a separate chapter deals with the historical origin of some specimens. Being a collection for educational purposes various indices are added to the systematic catalogue in order to find objects according to specific criteria important for teaching at the university.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/5274442" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="acebefae958ff71f912330a1cc4a0bec" rel="nofollow" data-download="{"attachment_id":32450166,"asset_id":5274442,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/32450166/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3042744" href="https://univie.academia.edu/MatthiasSvojtka">Matthias Svojtka</a><script data-card-contents-for-user="3042744" type="text/json">{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}</script></span></span></li><li class="js-paper-rank-work_5274442 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="5274442"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 5274442, container: ".js-paper-rank-work_5274442", }); });</script></li><li class="js-percentile-work_5274442 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 5274442; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_5274442"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_5274442 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="5274442"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 5274442; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=5274442]").text(description); $(".js-view-count-work_5274442").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_5274442").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="5274442"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="15761" rel="nofollow" href="https://www.academia.edu/Documents/in/History_of_Collections">History of Collections</a>, <script data-card-contents-for-ri="15761" type="text/json">{"id":15761,"name":"History of Collections","url":"https://www.academia.edu/Documents/in/History_of_Collections?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a>, <script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="52072" rel="nofollow" href="https://www.academia.edu/Documents/in/History_of_Collecting">History of Collecting</a><script data-card-contents-for-ri="52072" type="text/json">{"id":52072,"name":"History of Collecting","url":"https://www.academia.edu/Documents/in/History_of_Collecting?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=5274442]'), work: {"id":5274442,"title":"Die Trilobitensammlung der Universität Wien: eine Revision mit Beiträgen zur Stammesgeschichte der Trilobita","created_at":"2013-11-30T20:55:22.804-08:00","url":"https://www.academia.edu/5274442/Die_Trilobitensammlung_der_Universit%C3%A4t_Wien_eine_Revision_mit_Beitr%C3%A4gen_zur_Stammesgeschichte_der_Trilobita?f_ri=24357","dom_id":"work_5274442","summary":"A REVISION OF THE UNIVERSITY OF VIENNA’S TRILOBITE COLLECTION: A COMPILING CATALOGUE WITH ADDITIONAL INFORMATION ON THE PHYLOGENETIC POSITION OF THE TRILOBITA. \r\nTrilobites have been known some 15.000 years. Although the group is not as important in a cultural sense as for example, molluscs, trilobites have been used as cultic objects by certain Indian tribes of North and South America, as amulets and jewellery by Europeans; they are even mentioned in literature and poetry.\r\nWALCH introduced the name ”Trilobites” in 1771; since then highly different views concerning their zoological position have been discussed, and even at present their exact phylogenetic position remains an unsolved problem. In 1939 and in the following years STØRMER reconstructed the morphology of the trilobite biramous limb: he believed in the presence of a precoxa on the protopodite, to which the outer branch of the biramous appendage is attached. If this is true, the trilobite exite should be a pre-epipodite and therefore cannot be homologous to the crustacean exite, which is a true exopodite originating from the basis. In STØRMER’s view this trilobite-type limb is an important characteristic uniting Trilobitomorpha and Chelicerata (the ”Arachnomorpha” or ”Arachnata” concept), the latter having primary biramous appendages, as indicated by xiphosuran limbs with a small remaining exite. None of the following studies, however, was able to prove the existence of STØRMER’s precoxa. According to new findings in stem-lineage crustaceans it is highly probable that neither Lamellipedia (= new appropriate name for ”Trilobitomorpha”) nor Chelicerata possess a true coxa (in the crustacean sense), their protopodite therefore being homologous to the basis of Crustacea. The important characteristics of the trilobite-type appendage are that the exopodite (exite of basis) bears long, flattened setae; these setae are directed away from the endopodite. Trilobite-type and crustacean-type biramous limbs are clearly homologous structures, originating from a simple construction of schizoramous appendage as shown in the proschizoramian Fuxianhuia. Neither do additional characteristics like cephalisation, pygidium and facial sutures prove a closer relationship of Lamellipedia and Chelicerata. At present the Lamellipedia are best treated as an independent subphylum of the phylum Arthropoda, with no closer connection to the Chelicerata than to the Crustacea. Rejecting the Uniramia-hypothesis the Arthropoda as a whole are considered to be monophyletic. \r\nDuring the work on the trilobite collection, every fossil was cleaned, classified, and labelled. The specimens are now housed adequately in sealed plastic bags or showcases. The trilobite collection consists of 1411 fossils mainly from the Czech Republic (1091 specimens), but also from other countries such as Germany, Austria, Sweden, Great Britain, the United States of America, Russia, Estonia, Italy, Morocco and France. These objects were brought together by a variety of different people, some of them important palaeontologists: Othenio ABEL, Ignaz HAWLE, Jaroslav J. JAHN, Rudolf KNER, Valerian von MÖLLER and Ottomar P. NOVÁK; a separate chapter deals with the historical origin of some specimens. Being a collection for educational purposes various indices are added to the systematic catalogue in order to find objects according to specific criteria important for teaching at the university.","downloadable_attachments":[{"id":32450166,"asset_id":5274442,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}],"research_interests":[{"id":15761,"name":"History of Collections","url":"https://www.academia.edu/Documents/in/History_of_Collections?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true},{"id":52072,"name":"History of Collecting","url":"https://www.academia.edu/Documents/in/History_of_Collecting?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_278000" data-work_id="278000" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/278000/The_ontogeny_and_systematics_of_the_otarionine_trilobites_Otarionella_from_the_Devonian_of_the_Montagne_Noire_France_and_the_Maider_Morocco">The ontogeny and systematics of the otarionine trilobites Otarionella from the Devonian of the Montagne Noire, France and the Maider, Morocco. </a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">A new otarionine trilobite Otarionella rastrum sp. nov., from the late Emsian Mont Peyroux Formation (Montagne Noire, France), is described. Silicified remains, recovered from the underlying Bissounel Formation (early to late Emsian), are... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_278000" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">A new otarionine trilobite Otarionella rastrum sp. nov., from the late Emsian Mont Peyroux Formation (Montagne Noire, France), is described. Silicified remains, recovered from the underlying Bissounel Formation (early to late Emsian), are also attributed to this new species. These isolated silicified sclerites represent metaprotaspid to young holaspid growth stages, which enables the almost complete ontogeny of an otarionine trilobite with a spinose adult morphology to be described for the first time. Comparison with associated larval and juvenile growth stages of Cyphaspis reveal that the pattern of juvenile cranidial spine distribution in Otarionella rastrum sp. nov. differs from all patterns described so far in the Otarioninae, in particular that characterizing the tribe Otarionini. A second species, Otarionella lkomalii sp. nov., known only from a complete articulated specimen discovered in the early Eifelian of southern Morocco, is also described. Like the middle Eifelian Otarionella chamaeleo (Basse, 1997), this new species has only ten thoracic segments, with the fourth and the sixth segments each bearing a long axial spine. In the light of the new elements provided by the ontogenetic sequence of O. rastrum sp. nov. and the adult specimens of this species and O. lkomalii sp. nov., the putative synonymy of Otarionella and Otarion is rejected and a restricted concept of the genus Otarionella is defined.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/278000" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="6cdbd9ccb3e73e21abbb37d6d2f645e2" rel="nofollow" data-download="{"attachment_id":30411966,"asset_id":278000,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/30411966/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="224642" href="https://une-au.academia.edu/RudyLeroseyAubril">Rudy Lerosey-Aubril</a><script data-card-contents-for-user="224642" type="text/json">{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}</script></span></span></li><li class="js-paper-rank-work_278000 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="278000"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 278000, container: ".js-paper-rank-work_278000", }); });</script></li><li class="js-percentile-work_278000 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 278000; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_278000"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_278000 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="278000"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 278000; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=278000]").text(description); $(".js-view-count-work_278000").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_278000").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="278000"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">7</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="155" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolutionary_Biology">Evolutionary Biology</a>, <script data-card-contents-for-ri="155" type="text/json">{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17824" rel="nofollow" href="https://www.academia.edu/Documents/in/Systematics">Systematics</a>, <script data-card-contents-for-ri="17824" type="text/json">{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="22322" rel="nofollow" href="https://www.academia.edu/Documents/in/Marine_Embryos_and_Larvae">Marine Embryos and Larvae</a>, <script data-card-contents-for-ri="22322" type="text/json">{"id":22322,"name":"Marine Embryos and Larvae","url":"https://www.academia.edu/Documents/in/Marine_Embryos_and_Larvae?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=278000]'), work: {"id":278000,"title":"The ontogeny and systematics of the otarionine trilobites Otarionella from the Devonian of the Montagne Noire, France and the Maider, Morocco. ","created_at":"2010-07-29T03:13:40.173-07:00","url":"https://www.academia.edu/278000/The_ontogeny_and_systematics_of_the_otarionine_trilobites_Otarionella_from_the_Devonian_of_the_Montagne_Noire_France_and_the_Maider_Morocco?f_ri=24357","dom_id":"work_278000","summary":"A new otarionine trilobite Otarionella rastrum sp. nov., from the late Emsian Mont Peyroux Formation (Montagne Noire, France), is described. Silicified remains, recovered from the underlying Bissounel Formation (early to late Emsian), are also attributed to this new species. These isolated silicified sclerites represent metaprotaspid to young holaspid growth stages, which enables the almost complete ontogeny of an otarionine trilobite with a spinose adult morphology to be described for the first time. Comparison with associated larval and juvenile growth stages of Cyphaspis reveal that the pattern of juvenile cranidial spine distribution in Otarionella rastrum sp. nov. differs from all patterns described so far in the Otarioninae, in particular that characterizing the tribe Otarionini. A second species, Otarionella lkomalii sp. nov., known only from a complete articulated specimen discovered in the early Eifelian of southern Morocco, is also described. Like the middle Eifelian Otarionella chamaeleo (Basse, 1997), this new species has only ten thoracic segments, with the fourth and the sixth segments each bearing a long axial spine. In the light of the new elements provided by the ontogenetic sequence of O. rastrum sp. nov. and the adult specimens of this species and O. lkomalii sp. nov., the putative synonymy of Otarionella and Otarion is rejected and a restricted concept of the genus Otarionella is defined.","downloadable_attachments":[{"id":30411966,"asset_id":278000,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}],"research_interests":[{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true},{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357","nofollow":true},{"id":22322,"name":"Marine Embryos and Larvae","url":"https://www.academia.edu/Documents/in/Marine_Embryos_and_Larvae?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":55608,"name":"Ontogeny","url":"https://www.academia.edu/Documents/in/Ontogeny?f_ri=24357"},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357"},{"id":165795,"name":"Proetida","url":"https://www.academia.edu/Documents/in/Proetida?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_277987" data-work_id="277987" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/277987/Ontogeny_of_a_new_cyrtosymboline_trilobite_from_the_Famennian_of_Morocco">Ontogeny of a new cyrtosymboline trilobite from the Famennian of Morocco.</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Abundant trilobite remains were recovered from late mid−Famennian marlstones from various sites in Eastern Tafilalet, southeast Morocco. All belong to a single taxon previously identified as Cyrtosymbole (Waribole) prima. This taxon is... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_277987" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Abundant trilobite remains were recovered from late mid−Famennian marlstones from various sites in Eastern Tafilalet, southeast Morocco. All belong to a single taxon previously identified as Cyrtosymbole (Waribole) prima. This taxon is designated the type species of Osmolskabole gen. nov. A redefinition of this species, including the description of newly discovered, disarticulated exuviae both in limestone and silicified state of preservation, is given. In particular, silicified sclerites of various sizes allow the first complete growth series of a cyrtosymboline proetid to be presented. The close morphological resemblance of its protaspid stages to known proetoid larvae emphasizes the homogeneity of the early ontogeny in this superfamily. The Famennian proetoid anaprotaspis is also of comparable size to that of other Devonian proetoid larvae. However, their size−range is much less than that observed in Carboniferous larvae. This suggests that the survival of proetoid trilobites at the Frasnian - Famennian Kellwasser crisis did not result from a modification of the developmental strategy, as it might have been the case at the terminal Devonian extinction event. Moreover, O. prima possesses a plectrum from the metaprotaspid to the mid meraspid periods. This implies that the natant hypostomal condition is not steadily acquired early in the ontogeny of the Proetida. Thus we preclude the use of this character in the diagnosis of this order.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/277987" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="8116c8efe9854fb9a597237be92cfa32" rel="nofollow" data-download="{"attachment_id":31371785,"asset_id":277987,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/31371785/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="224642" href="https://une-au.academia.edu/RudyLeroseyAubril">Rudy Lerosey-Aubril</a><script data-card-contents-for-user="224642" type="text/json">{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}</script></span></span></li><li class="js-paper-rank-work_277987 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="277987"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 277987, container: ".js-paper-rank-work_277987", }); });</script></li><li class="js-percentile-work_277987 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 277987; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_277987"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_277987 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="277987"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 277987; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=277987]").text(description); $(".js-view-count-work_277987").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_277987").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="277987"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">9</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="10882" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolution">Evolution</a>, <script data-card-contents-for-ri="10882" type="text/json">{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="13684" rel="nofollow" href="https://www.academia.edu/Documents/in/Morocco">Morocco</a>, <script data-card-contents-for-ri="13684" type="text/json">{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="22308" rel="nofollow" href="https://www.academia.edu/Documents/in/Marine_Larval_Biology_and_Ecology">Marine Larval Biology & Ecology</a>, <script data-card-contents-for-ri="22308" type="text/json">{"id":22308,"name":"Marine Larval Biology \u0026 Ecology","url":"https://www.academia.edu/Documents/in/Marine_Larval_Biology_and_Ecology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=277987]'), work: {"id":277987,"title":"Ontogeny of a new cyrtosymboline trilobite from the Famennian of Morocco.","created_at":"2010-07-29T03:08:24.555-07:00","url":"https://www.academia.edu/277987/Ontogeny_of_a_new_cyrtosymboline_trilobite_from_the_Famennian_of_Morocco?f_ri=24357","dom_id":"work_277987","summary":"Abundant trilobite remains were recovered from late mid−Famennian marlstones from various sites in Eastern Tafilalet, southeast Morocco. All belong to a single taxon previously identified as Cyrtosymbole (Waribole) prima. This taxon is designated the type species of Osmolskabole gen. nov. A redefinition of this species, including the description of newly discovered, disarticulated exuviae both in limestone and silicified state of preservation, is given. In particular, silicified sclerites of various sizes allow the first complete growth series of a cyrtosymboline proetid to be presented. The close morphological resemblance of its protaspid stages to known proetoid larvae emphasizes the homogeneity of the early ontogeny in this superfamily. The Famennian proetoid anaprotaspis is also of comparable size to that of other Devonian proetoid larvae. However, their size−range is much less than that observed in Carboniferous larvae. This suggests that the survival of proetoid trilobites at the Frasnian - Famennian Kellwasser crisis did not result from a modification of the developmental strategy, as it might have been the case at the terminal Devonian extinction event. Moreover, O. prima possesses a plectrum from the metaprotaspid to the mid meraspid periods. This implies that the natant hypostomal condition is not steadily acquired early in the ontogeny of the Proetida. Thus we preclude the use of this character in the diagnosis of this order.","downloadable_attachments":[{"id":31371785,"asset_id":277987,"asset_type":"Work","always_allow_download":false},{"id":1248333,"asset_id":277987,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}],"research_interests":[{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true},{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true},{"id":22308,"name":"Marine Larval Biology \u0026 Ecology","url":"https://www.academia.edu/Documents/in/Marine_Larval_Biology_and_Ecology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":33575,"name":"Mass extinctions","url":"https://www.academia.edu/Documents/in/Mass_extinctions?f_ri=24357"},{"id":55608,"name":"Ontogeny","url":"https://www.academia.edu/Documents/in/Ontogeny?f_ri=24357"},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357"},{"id":76748,"name":"Devonian","url":"https://www.academia.edu/Documents/in/Devonian?f_ri=24357"},{"id":82225,"name":"Famennian","url":"https://www.academia.edu/Documents/in/Famennian?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_278002" data-work_id="278002" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/278002/The_cephalic_median_organ_of_trilobites">The cephalic median organ of trilobites. </a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/278002" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="02c0b322a0cd2fe6cae967671744ea3b" rel="nofollow" data-download="{"attachment_id":7866235,"asset_id":278002,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/7866235/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="224642" href="https://une-au.academia.edu/RudyLeroseyAubril">Rudy Lerosey-Aubril</a><script data-card-contents-for-user="224642" type="text/json">{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}</script></span></span></li><li class="js-paper-rank-work_278002 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="278002"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 278002, container: ".js-paper-rank-work_278002", }); });</script></li><li class="js-percentile-work_278002 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 278002; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_278002"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_278002 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="278002"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 278002; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=278002]").text(description); $(".js-view-count-work_278002").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_278002").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="278002"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">8</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="1526" rel="nofollow" href="https://www.academia.edu/Documents/in/Sensors_and_Sensing">Sensors and Sensing</a>, <script data-card-contents-for-ri="1526" type="text/json">{"id":1526,"name":"Sensors and Sensing","url":"https://www.academia.edu/Documents/in/Sensors_and_Sensing?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="4735" rel="nofollow" href="https://www.academia.edu/Documents/in/Sensor">Sensor</a>, <script data-card-contents-for-ri="4735" type="text/json">{"id":4735,"name":"Sensor","url":"https://www.academia.edu/Documents/in/Sensor?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="10882" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolution">Evolution</a>, <script data-card-contents-for-ri="10882" type="text/json">{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17824" rel="nofollow" href="https://www.academia.edu/Documents/in/Systematics">Systematics</a><script data-card-contents-for-ri="17824" type="text/json">{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=278002]'), work: {"id":278002,"title":"The cephalic median organ of trilobites. ","created_at":"2010-07-29T03:16:43.894-07:00","url":"https://www.academia.edu/278002/The_cephalic_median_organ_of_trilobites?f_ri=24357","dom_id":"work_278002","summary":null,"downloadable_attachments":[{"id":7866235,"asset_id":278002,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}],"research_interests":[{"id":1526,"name":"Sensors and Sensing","url":"https://www.academia.edu/Documents/in/Sensors_and_Sensing?f_ri=24357","nofollow":true},{"id":4735,"name":"Sensor","url":"https://www.academia.edu/Documents/in/Sensor?f_ri=24357","nofollow":true},{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true},{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357"},{"id":28845,"name":"Palaeobiology","url":"https://www.academia.edu/Documents/in/Palaeobiology?f_ri=24357"},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_3647376" data-work_id="3647376" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/3647376/Revisi%C3%B3n_del_enrollamiento_en_los_trilobites_del_C%C3%A1mbrico_espa%C3%B1ol_y_su_implicaci%C3%B3n_en_la_evoluci%C3%B3n_de_los_trilobites_Revision_of_the_enrolment_in_Spanish_Cambrian_trilobites_and_its_implications_in_trilobite_evolution_">Revisión del enrollamiento en los trilobites del Cámbrico español y su implicación en la evolución de los trilobites (Revision of the enrolment in Spanish Cambrian trilobites and its implications in trilobite evolution)</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Estudios Geológicos [online] <a href="http://dx.doi.org/10.3989/egeol" rel="nofollow">http://dx.doi.org/10.3989/egeol</a> <a href="http://estudiosgeol.revistas.csic.es" rel="nofollow">http://estudiosgeol.revistas.csic.es</a> Manuscrito aceptado Accepted manuscript Autor(es) Author(s): Esteve, J. Título (original, ES): Title (original, ES): Revisión del... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_3647376" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Estudios Geológicos [online] <a href="http://dx.doi.org/10.3989/egeol" rel="nofollow">http://dx.doi.org/10.3989/egeol</a> <a href="http://estudiosgeol.revistas.csic.es" rel="nofollow">http://estudiosgeol.revistas.csic.es</a> Manuscrito aceptado Accepted manuscript Autor(es) Author(s): Esteve, J. Título (original, ES): Title (original, ES): Revisión del enrollamiento en los trilobites del Cámbrico español y su implicación en la evolución de los trilobites Título (traducido, EN): Title (translated, EN): Puede citar este artículo como: You may cite this article as: Esteve, J. (2013). Revisión del enrollamiento en los trilobites del Cámbrico español y su implicación en la evolución de los trilobites. Estudios Geológicos [en línea], manuscrito aceptado, doi: 10.3989/egeol.41215.259 Esteve, J. (2013). Revisión del enrollamiento en los trilobites del Cámbrico español y su implicación en la evolución de los trilobites. Estudios Geológicos [online], accepted manuscript, doi: 10.3989/egeol.41215.259 NOTA: Este documento es un artículo inédito que ha sido aceptado para su publicación.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/3647376" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="47761980700565b746613895aac2d463" rel="nofollow" data-download="{"attachment_id":31341086,"asset_id":3647376,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/31341086/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="1019295" href="https://zcu.academia.edu/JorgeEsteve">Jorge Esteve</a><script data-card-contents-for-user="1019295" type="text/json">{"id":1019295,"first_name":"Jorge","last_name":"Esteve","domain_name":"zcu","page_name":"JorgeEsteve","display_name":"Jorge Esteve","profile_url":"https://zcu.academia.edu/JorgeEsteve?f_ri=24357","photo":"https://0.academia-photos.com/1019295/907740/1134634/s65_jorge.esteve.jpg"}</script></span></span></li><li class="js-paper-rank-work_3647376 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="3647376"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 3647376, container: ".js-paper-rank-work_3647376", }); });</script></li><li class="js-percentile-work_3647376 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 3647376; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_3647376"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_3647376 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="3647376"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 3647376; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=3647376]").text(description); $(".js-view-count-work_3647376").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_3647376").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="3647376"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">5</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="4438" rel="nofollow" href="https://www.academia.edu/Documents/in/Functional_Morphology">Functional Morphology</a>, <script data-card-contents-for-ri="4438" type="text/json">{"id":4438,"name":"Functional Morphology","url":"https://www.academia.edu/Documents/in/Functional_Morphology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17472" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeoecology">Palaeoecology</a>, <script data-card-contents-for-ri="17472" type="text/json">{"id":17472,"name":"Palaeoecology","url":"https://www.academia.edu/Documents/in/Palaeoecology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="28160" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeontology">Palaeontology</a><script data-card-contents-for-ri="28160" type="text/json">{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=3647376]'), work: {"id":3647376,"title":"Revisión del enrollamiento en los trilobites del Cámbrico español y su implicación en la evolución de los trilobites (Revision of the enrolment in Spanish Cambrian trilobites and its implications in trilobite evolution)","created_at":"2013-06-03T13:23:26.533-07:00","url":"https://www.academia.edu/3647376/Revisi%C3%B3n_del_enrollamiento_en_los_trilobites_del_C%C3%A1mbrico_espa%C3%B1ol_y_su_implicaci%C3%B3n_en_la_evoluci%C3%B3n_de_los_trilobites_Revision_of_the_enrolment_in_Spanish_Cambrian_trilobites_and_its_implications_in_trilobite_evolution_?f_ri=24357","dom_id":"work_3647376","summary":"Estudios Geológicos [online] http://dx.doi.org/10.3989/egeol http://estudiosgeol.revistas.csic.es Manuscrito aceptado Accepted manuscript Autor(es) Author(s): Esteve, J. Título (original, ES): Title (original, ES): Revisión del enrollamiento en los trilobites del Cámbrico español y su implicación en la evolución de los trilobites Título (traducido, EN): Title (translated, EN): Puede citar este artículo como: You may cite this article as: Esteve, J. (2013). Revisión del enrollamiento en los trilobites del Cámbrico español y su implicación en la evolución de los trilobites. Estudios Geológicos [en línea], manuscrito aceptado, doi: 10.3989/egeol.41215.259 Esteve, J. (2013). Revisión del enrollamiento en los trilobites del Cámbrico español y su implicación en la evolución de los trilobites. Estudios Geológicos [online], accepted manuscript, doi: 10.3989/egeol.41215.259 NOTA: Este documento es un artículo inédito que ha sido aceptado para su publicación.","downloadable_attachments":[{"id":31341086,"asset_id":3647376,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":1019295,"first_name":"Jorge","last_name":"Esteve","domain_name":"zcu","page_name":"JorgeEsteve","display_name":"Jorge Esteve","profile_url":"https://zcu.academia.edu/JorgeEsteve?f_ri=24357","photo":"https://0.academia-photos.com/1019295/907740/1134634/s65_jorge.esteve.jpg"}],"research_interests":[{"id":4438,"name":"Functional Morphology","url":"https://www.academia.edu/Documents/in/Functional_Morphology?f_ri=24357","nofollow":true},{"id":17472,"name":"Palaeoecology","url":"https://www.academia.edu/Documents/in/Palaeoecology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true},{"id":98467,"name":"Cambrian-Devonian trilobites","url":"https://www.academia.edu/Documents/in/Cambrian-Devonian_trilobites?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_3137099" data-work_id="3137099" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/3137099/Trilobite_fossil_spotted">Trilobite fossil spotted</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/3137099" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="ecc91bd71ed71c6c2f0b307f45faf678" rel="nofollow" data-download="{"attachment_id":31047395,"asset_id":3137099,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/31047395/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="31995" href="https://fredonia.academia.edu/ThomasHegna">Thomas A Hegna</a><script data-card-contents-for-user="31995" type="text/json">{"id":31995,"first_name":"Thomas","last_name":"Hegna","domain_name":"fredonia","page_name":"ThomasHegna","display_name":"Thomas A Hegna","profile_url":"https://fredonia.academia.edu/ThomasHegna?f_ri=24357","photo":"https://0.academia-photos.com/31995/10327/1639061/s65_thomas.hegna.jpg"}</script></span></span></li><li class="js-paper-rank-work_3137099 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="3137099"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 3137099, container: ".js-paper-rank-work_3137099", }); });</script></li><li class="js-percentile-work_3137099 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 3137099; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_3137099"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_3137099 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="3137099"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 3137099; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=3137099]").text(description); $(".js-view-count-work_3137099").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_3137099").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="3137099"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i></div><span class="InlineList-item-text u-textTruncate u-pl6x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (false) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=3137099]'), work: {"id":3137099,"title":"Trilobite fossil spotted","created_at":"2013-03-28T01:35:26.624-07:00","url":"https://www.academia.edu/3137099/Trilobite_fossil_spotted?f_ri=24357","dom_id":"work_3137099","summary":null,"downloadable_attachments":[{"id":31047395,"asset_id":3137099,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":31995,"first_name":"Thomas","last_name":"Hegna","domain_name":"fredonia","page_name":"ThomasHegna","display_name":"Thomas A Hegna","profile_url":"https://fredonia.academia.edu/ThomasHegna?f_ri=24357","photo":"https://0.academia-photos.com/31995/10327/1639061/s65_thomas.hegna.jpg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_2911176" data-work_id="2911176" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/2911176/NEW_SPECIES_OF_THE_LICHID_TRILOBITE_CERATARGES_FROM_THE_MIDDLE_DEVONIAN_IN_MOROCCO">NEW SPECIES OF THE LICHID TRILOBITE CERATARGES FROM THE MIDDLE DEVONIAN IN MOROCCO</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">"Members of Ceratarges Gürich are known from Devonian strata in various countries but they have not yet been formally described from Morocco. Ceratarges ziregensis sp. nov., Ceratarges koumalii sp. nov. and Ceratarges aries sp. nov.... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_2911176" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">"Members of Ceratarges Gürich are known from Devonian strata in various countries but they have not yet <br />been formally described from Morocco. Ceratarges ziregensis sp. nov., Ceratarges koumalii sp. nov. and Ceratarges aries <br />sp. nov. are herein described from the El Otfal Formation (Eifelian) in Morocco on the basis of complete specimens. <br />Supplementary material is illustrated of Ceratarges cognatus van Viersen from the Jemelle Formation (Eifelian) in France. <br />The relationships between Ceratarges, Mephiarges Richter & Richter and Asawikwanabe Basse in Basse & Müller are <br />briefly elaborated on."</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/2911176" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="353a7064c27cdac81ffe16bb4f4c240a" rel="nofollow" data-download="{"attachment_id":30835778,"asset_id":2911176,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/30835778/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="2548345" href="https://ulisboa.academia.edu/MiguelCaldeiraPais">Miguel Caldeira Pais - Mediterranic™</a><script data-card-contents-for-user="2548345" type="text/json">{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}</script></span></span></li><li class="js-paper-rank-work_2911176 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="2911176"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 2911176, container: ".js-paper-rank-work_2911176", }); });</script></li><li class="js-percentile-work_2911176 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 2911176; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_2911176"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_2911176 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="2911176"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 2911176; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=2911176]").text(description); $(".js-view-count-work_2911176").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_2911176").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="2911176"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="13684" rel="nofollow" href="https://www.academia.edu/Documents/in/Morocco">Morocco</a>, <script data-card-contents-for-ri="13684" type="text/json">{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="27336" rel="nofollow" href="https://www.academia.edu/Documents/in/France">France</a>, <script data-card-contents-for-ri="27336" type="text/json">{"id":27336,"name":"France","url":"https://www.academia.edu/Documents/in/France?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="300912" rel="nofollow" href="https://www.academia.edu/Documents/in/Eifelian">Eifelian</a><script data-card-contents-for-ri="300912" type="text/json">{"id":300912,"name":"Eifelian","url":"https://www.academia.edu/Documents/in/Eifelian?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=2911176]'), work: {"id":2911176,"title":"NEW SPECIES OF THE LICHID TRILOBITE CERATARGES FROM THE MIDDLE DEVONIAN IN MOROCCO","created_at":"2013-03-05T09:57:34.855-08:00","url":"https://www.academia.edu/2911176/NEW_SPECIES_OF_THE_LICHID_TRILOBITE_CERATARGES_FROM_THE_MIDDLE_DEVONIAN_IN_MOROCCO?f_ri=24357","dom_id":"work_2911176","summary":"\"Members of Ceratarges Gürich are known from Devonian strata in various countries but they have not yet \r\nbeen formally described from Morocco. Ceratarges ziregensis sp. nov., Ceratarges koumalii sp. nov. and Ceratarges aries\r\nsp. nov. are herein described from the El Otfal Formation (Eifelian) in Morocco on the basis of complete specimens. \r\nSupplementary material is illustrated of Ceratarges cognatus van Viersen from the Jemelle Formation (Eifelian) in France. \r\nThe relationships between Ceratarges, Mephiarges Richter \u0026 Richter and Asawikwanabe Basse in Basse \u0026 Müller are \r\nbriefly elaborated on.\"","downloadable_attachments":[{"id":30835778,"asset_id":2911176,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":2548345,"first_name":"Miguel","last_name":"Caldeira Pais - Mediterranic™","domain_name":"ulisboa","page_name":"MiguelCaldeiraPais","display_name":"Miguel Caldeira Pais - Mediterranic™","profile_url":"https://ulisboa.academia.edu/MiguelCaldeiraPais?f_ri=24357","photo":"https://0.academia-photos.com/2548345/794214/1457006/s65_miguel.pais.jpg"}],"research_interests":[{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":27336,"name":"France","url":"https://www.academia.edu/Documents/in/France?f_ri=24357","nofollow":true},{"id":300912,"name":"Eifelian","url":"https://www.academia.edu/Documents/in/Eifelian?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_278023" data-work_id="278023" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/278023/Permian_trilobites_from_Antalya_Province_Turkey_and_enrollment_in_Late_Paleozoic_trilobites">Permian trilobites from Antalya Province, Turkey, and enrollment in Late Paleozoic trilobites. </a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Trilobites are a minor component of Permian benthic marine faunas, which explains why they remain poorly known. For example, only two specimens have been found in the highly fossiliferous and extensively studied Middle-Upper Permian... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_278023" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Trilobites are a minor component of Permian benthic marine faunas, which explains why they remain poorly known. For example, only two specimens have been found in the highly fossiliferous and extensively studied Middle-Upper Permian Pamucak Formation (Antalya Province, Turkey). These two complete enrolled trilobites of Wordian age are described herein. The diagnosis of the subgenus Pseudophillipsia (Nodiphillipsia) Kobayashi & Hamada 1984a is emended and its occurrence outside of eastern Asia is reported for the first time. The second specimen represents a new species, Pseudophillipsia (Carniphillipsia) kemerensis sp. nov. Its discovery in the Wordian of Turkey suggests that Pseudophillipsia (Carniphillipsia) is no less diversified in the Middle Permian than in the Early Permian. Both specimens exhibit a particular enrollment posture, with the anterior part of the pygidium located within the cephalic cavity, while its posterior part is adpressed against the anterior cephalic doublure. The advantages of this style of enrollment are discussed, especially with regards to resistance of the enrolled body to external pressures, and rare examples of similar postures in older trilobites are reported. These two specimens are the first Permian trilobites from Turkey to be described, thus complementing the poor fossil record of these organisms in the Permian of southwestern Asia.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/278023" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="443f9512ca5c219a6f5ff8b6b0805bc7" rel="nofollow" data-download="{"attachment_id":31371796,"asset_id":278023,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/31371796/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="224642" href="https://une-au.academia.edu/RudyLeroseyAubril">Rudy Lerosey-Aubril</a><script data-card-contents-for-user="224642" type="text/json">{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}</script></span></span></li><li class="js-paper-rank-work_278023 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="278023"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 278023, container: ".js-paper-rank-work_278023", }); });</script></li><li class="js-percentile-work_278023 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 278023; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_278023"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_278023 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="278023"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 278023; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=278023]").text(description); $(".js-view-count-work_278023").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_278023").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="278023"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">10</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="155" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolutionary_Biology">Evolutionary Biology</a>, <script data-card-contents-for-ri="155" type="text/json">{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="10966" rel="nofollow" href="https://www.academia.edu/Documents/in/Turkey">Turkey</a>, <script data-card-contents-for-ri="10966" type="text/json">{"id":10966,"name":"Turkey","url":"https://www.academia.edu/Documents/in/Turkey?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17472" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeoecology">Palaeoecology</a>, <script data-card-contents-for-ri="17472" type="text/json">{"id":17472,"name":"Palaeoecology","url":"https://www.academia.edu/Documents/in/Palaeoecology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=278023]'), work: {"id":278023,"title":"Permian trilobites from Antalya Province, Turkey, and enrollment in Late Paleozoic trilobites. ","created_at":"2010-07-29T03:21:38.296-07:00","url":"https://www.academia.edu/278023/Permian_trilobites_from_Antalya_Province_Turkey_and_enrollment_in_Late_Paleozoic_trilobites?f_ri=24357","dom_id":"work_278023","summary":"Trilobites are a minor component of Permian benthic marine faunas, which explains why they remain poorly known. For example, only two specimens have been found in the highly fossiliferous and extensively studied Middle-Upper Permian Pamucak Formation (Antalya Province, Turkey). These two complete enrolled trilobites of Wordian age are described herein. The diagnosis of the subgenus Pseudophillipsia (Nodiphillipsia) Kobayashi \u0026 Hamada 1984a is emended and its occurrence outside of eastern Asia is reported for the first time. The second specimen represents a new species, Pseudophillipsia (Carniphillipsia) kemerensis sp. nov. Its discovery in the Wordian of Turkey suggests that Pseudophillipsia (Carniphillipsia) is no less diversified in the Middle Permian than in the Early Permian. Both specimens exhibit a particular enrollment posture, with the anterior part of the pygidium located within the cephalic cavity, while its posterior part is adpressed against the anterior cephalic doublure. The advantages of this style of enrollment are discussed, especially with regards to resistance of the enrolled body to external pressures, and rare examples of similar postures in older trilobites are reported. These two specimens are the first Permian trilobites from Turkey to be described, thus complementing the poor fossil record of these organisms in the Permian of southwestern Asia. ","downloadable_attachments":[{"id":31371796,"asset_id":278023,"asset_type":"Work","always_allow_download":false},{"id":1248457,"asset_id":278023,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}],"research_interests":[{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true},{"id":10966,"name":"Turkey","url":"https://www.academia.edu/Documents/in/Turkey?f_ri=24357","nofollow":true},{"id":17472,"name":"Palaeoecology","url":"https://www.academia.edu/Documents/in/Palaeoecology?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":28845,"name":"Palaeobiology","url":"https://www.academia.edu/Documents/in/Palaeobiology?f_ri=24357"},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357"},{"id":101506,"name":"Permian","url":"https://www.academia.edu/Documents/in/Permian?f_ri=24357"},{"id":370194,"name":"Defensive Strategies","url":"https://www.academia.edu/Documents/in/Defensive_Strategies?f_ri=24357"},{"id":370209,"name":"Taurus Mountains","url":"https://www.academia.edu/Documents/in/Taurus_Mountains?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_6538169 coauthored" data-work_id="6538169" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/6538169/Trilobite_faunal_dynamics_on_the_Devonian_continental_shelves_of_the_Ardenne_Massif_and_Boulonnais_France_Belgium_">Trilobite faunal dynamics on the Devonian continental shelves of the Ardenne Massif and Boulonnais (France, Belgium)</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">During the Devonian the sedimentation on the continental shelves of Ardenne Massif and Boulonnais has changed from a mixed siliciclastic-carbonate ramp (Eifelian), through a carbonate barrier reef (Givetian) and then to a detritic influx... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_6538169" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">During the Devonian the sedimentation on the continental shelves of Ardenne Massif and Boulonnais has changed from a mixed siliciclastic-carbonate ramp (Eifelian), through a carbonate barrier reef (Givetian) and then to a detritic influx with local mud-mounds (Frasnian). Here we analysed the faunistic dynamics of the trilobite associations through the changing environment. We used multivariate analyses (clustering and ordering) to discriminate the trilobite associations within 67 different samples. Three previously known communities and one new were recognised: the Eifelian Mixed association, the Givetian Dechenella association and the two Frasnian Bradocryphaeus and Scutellum-Goldius associations. These trilobite faunas present a progressive ecological specialisation. The Mixed association occurs both in the ramp or carbonated (local reef developed on the ramp) facies without any significant difference in its composition. The Dechenella fauna occurs preferentially close to barrier reefs, but can also survive during short periods of detrital input. The two Frasnian communities show a strong relationship with their environment. The Scutellum-Goldius association is only found in reef systems, whereas the Bradocryphaeus flourishes exclusively in lateral facies.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/6538169" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="7cb17058fde87088ffb7459de36e3fa1" rel="nofollow" data-download="{"attachment_id":40510394,"asset_id":6538169,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/40510394/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="14049801" href="https://independent.academia.edu/CatherineCronier">Catherine Cronier</a><script data-card-contents-for-user="14049801" type="text/json">{"id":14049801,"first_name":"Catherine","last_name":"Cronier","domain_name":"independent","page_name":"CatherineCronier","display_name":"Catherine Cronier","profile_url":"https://independent.academia.edu/CatherineCronier?f_ri=24357","photo":"https://0.academia-photos.com/14049801/9820480/10943543/s65_catherine.cronier.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-6538169">+1</span><div class="hidden js-additional-users-6538169"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://cordoba.academia.edu/ArnaudBignon">Arnaud Bignon</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-6538169'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-6538169').html(); } } new HoverPopover(popoverSettings); })();</script></li><li class="js-paper-rank-work_6538169 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="6538169"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 6538169, container: ".js-paper-rank-work_6538169", }); });</script></li><li class="js-percentile-work_6538169 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 6538169; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_6538169"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_6538169 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="6538169"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6538169; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=6538169]").text(description); $(".js-view-count-work_6538169").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_6538169").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="6538169"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">7</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="76748" rel="nofollow" href="https://www.academia.edu/Documents/in/Devonian">Devonian</a>, <script data-card-contents-for-ri="76748" type="text/json">{"id":76748,"name":"Devonian","url":"https://www.academia.edu/Documents/in/Devonian?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="300912" rel="nofollow" href="https://www.academia.edu/Documents/in/Eifelian">Eifelian</a>, <script data-card-contents-for-ri="300912" type="text/json">{"id":300912,"name":"Eifelian","url":"https://www.academia.edu/Documents/in/Eifelian?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="300913" rel="nofollow" href="https://www.academia.edu/Documents/in/Givetian">Givetian</a><script data-card-contents-for-ri="300913" type="text/json">{"id":300913,"name":"Givetian","url":"https://www.academia.edu/Documents/in/Givetian?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=6538169]'), work: {"id":6538169,"title":"Trilobite faunal dynamics on the Devonian continental shelves of the Ardenne Massif and Boulonnais (France, Belgium)","created_at":"2014-03-25T00:23:10.570-07:00","url":"https://www.academia.edu/6538169/Trilobite_faunal_dynamics_on_the_Devonian_continental_shelves_of_the_Ardenne_Massif_and_Boulonnais_France_Belgium_?f_ri=24357","dom_id":"work_6538169","summary":"During the Devonian the sedimentation on the continental shelves of Ardenne Massif and Boulonnais has changed from a mixed siliciclastic-carbonate ramp (Eifelian), through a carbonate barrier reef (Givetian) and then to a detritic influx with local mud-mounds (Frasnian). Here we analysed the faunistic dynamics of the trilobite associations through the changing environment. We used multivariate analyses (clustering and ordering) to discriminate the trilobite associations within 67 different samples. Three previously known communities and one new were recognised: the Eifelian Mixed association, the Givetian Dechenella association and the two Frasnian Bradocryphaeus and Scutellum-Goldius associations. These trilobite faunas present a progressive ecological specialisation. The Mixed association occurs both in the ramp or carbonated (local reef developed on the ramp) facies without any significant difference in its composition. The Dechenella fauna occurs preferentially close to barrier reefs, but can also survive during short periods of detrital input. The two Frasnian communities show a strong relationship with their environment. The Scutellum-Goldius association is only found in reef systems, whereas the Bradocryphaeus flourishes exclusively in lateral facies.","downloadable_attachments":[{"id":40510394,"asset_id":6538169,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":14049801,"first_name":"Catherine","last_name":"Cronier","domain_name":"independent","page_name":"CatherineCronier","display_name":"Catherine Cronier","profile_url":"https://independent.academia.edu/CatherineCronier?f_ri=24357","photo":"https://0.academia-photos.com/14049801/9820480/10943543/s65_catherine.cronier.jpg"},{"id":2083760,"first_name":"Arnaud","last_name":"Bignon","domain_name":"cordoba","page_name":"ArnaudBignon","display_name":"Arnaud Bignon","profile_url":"https://cordoba.academia.edu/ArnaudBignon?f_ri=24357","photo":"https://0.academia-photos.com/2083760/680711/940951/s65_arnaud.bignon.jpg"}],"research_interests":[{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":76748,"name":"Devonian","url":"https://www.academia.edu/Documents/in/Devonian?f_ri=24357","nofollow":true},{"id":300912,"name":"Eifelian","url":"https://www.academia.edu/Documents/in/Eifelian?f_ri=24357","nofollow":true},{"id":300913,"name":"Givetian","url":"https://www.academia.edu/Documents/in/Givetian?f_ri=24357","nofollow":true},{"id":361073,"name":"Frasnian","url":"https://www.academia.edu/Documents/in/Frasnian?f_ri=24357"},{"id":497881,"name":"Reefs","url":"https://www.academia.edu/Documents/in/Reefs?f_ri=24357"},{"id":1135616,"name":"Faunal Succession","url":"https://www.academia.edu/Documents/in/Faunal_Succession?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_278037" data-work_id="278037" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/278037/Quantitative_approach_of_diversity_and_decline_in_late_Palaeozoic_trilobites">Quantitative approach of diversity and decline in late Palaeozoic trilobites. </a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Quantitative data reveal a complex evolution of late trilobite diversity. In the Mid- to early Late Devonian, a series of extinction events led to a drastic taxonomic impoverishment. In the Famennian, while only two orders remained,... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_278037" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Quantitative data reveal a complex evolution of late trilobite diversity. In the Mid- to early Late Devonian, a series of extinction events led to a drastic taxonomic impoverishment. In the Famennian, while only two orders remained, originations started to compensate still high extinction rates marking the onset of a remarkable diversification. Though interrupted by the major Hangenberg turnover, the general diversification trend accelerated in the Tournaisian whilst extinctions became modest. Originations notably diminished during the Viséan and the Serphukovian, making the diversity to step down at the level of the Frasnian. It has never been much higher thereafter, despite a profound restructuring of trilobite communities in the early Pennsylvanian permitting the progressive domination of ditomopygines. After another drop in the Kasimovian a period of stasis occurred with very low diversity levels and almost no renewal. The last diversification burst took place in the Wordian, but it ceased rapidly in the Capitanian when the degradation of environmental conditions started to inhibit originations. Thus, the extinction of the Trilobita at the end of the Permian resulted from the disappearance of merely a handful of genera.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/278037" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="dcd31802d192d535aef74b7873d9a6e8" rel="nofollow" data-download="{"attachment_id":30476574,"asset_id":278037,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/30476574/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="224642" href="https://une-au.academia.edu/RudyLeroseyAubril">Rudy Lerosey-Aubril</a><script data-card-contents-for-user="224642" type="text/json">{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}</script></span></span></li><li class="js-paper-rank-work_278037 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="278037"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 278037, container: ".js-paper-rank-work_278037", }); });</script></li><li class="js-percentile-work_278037 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 278037; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_278037"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_278037 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="278037"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 278037; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=278037]").text(description); $(".js-view-count-work_278037").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_278037").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="278037"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">9</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="10882" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolution">Evolution</a>, <script data-card-contents-for-ri="10882" type="text/json">{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17825" rel="nofollow" href="https://www.academia.edu/Documents/in/Biodiversity">Biodiversity</a>, <script data-card-contents-for-ri="17825" type="text/json">{"id":17825,"name":"Biodiversity","url":"https://www.academia.edu/Documents/in/Biodiversity?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="28160" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeontology">Palaeontology</a><script data-card-contents-for-ri="28160" type="text/json">{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=278037]'), work: {"id":278037,"title":"Quantitative approach of diversity and decline in late Palaeozoic trilobites. ","created_at":"2010-07-29T03:25:23.931-07:00","url":"https://www.academia.edu/278037/Quantitative_approach_of_diversity_and_decline_in_late_Palaeozoic_trilobites?f_ri=24357","dom_id":"work_278037","summary":"Quantitative data reveal a complex evolution of late trilobite diversity. In the Mid- to early Late Devonian, a series of extinction events led to a drastic taxonomic impoverishment. In the Famennian, while only two orders remained, originations started to compensate still high extinction rates marking the onset of a remarkable diversification. Though interrupted by the major Hangenberg turnover, the general diversification trend accelerated in the Tournaisian whilst extinctions became modest. Originations notably diminished during the Viséan and the Serphukovian, making the diversity to step down at the level of the Frasnian. It has never been much higher thereafter, despite a profound restructuring of trilobite communities in the early Pennsylvanian permitting the progressive domination of ditomopygines. After another drop in the Kasimovian a period of stasis occurred with very low diversity levels and almost no renewal. The last diversification burst took place in the Wordian, but it ceased rapidly in the Capitanian when the degradation of environmental conditions started to inhibit originations. Thus, the extinction of the Trilobita at the end of the Permian resulted from the disappearance of merely a handful of genera.","downloadable_attachments":[{"id":30476574,"asset_id":278037,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}],"research_interests":[{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true},{"id":17825,"name":"Biodiversity","url":"https://www.academia.edu/Documents/in/Biodiversity?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357","nofollow":true},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357"},{"id":76748,"name":"Devonian","url":"https://www.academia.edu/Documents/in/Devonian?f_ri=24357"},{"id":96185,"name":"Carboniferous","url":"https://www.academia.edu/Documents/in/Carboniferous?f_ri=24357"},{"id":101506,"name":"Permian","url":"https://www.academia.edu/Documents/in/Permian?f_ri=24357"},{"id":181159,"name":"Mass Extinction","url":"https://www.academia.edu/Documents/in/Mass_Extinction?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_278024" data-work_id="278024" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/278024/First_record_of_the_Carboniferous_trilobite_Bollandia_from_the_Moravian_Karst_Czech_Republic_and_its_significance">First record of the Carboniferous trilobite Bollandia from the Moravian Karst (Czech Republic) and its significance. </a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The presence of bollandiine trilobites is reported for the first time in the early Carboniferous of Moravia, the Czech Republic. Bollandia persephone (Hahn & Hahn, 1970) and B. cf. megaira (Hahn & Hahn, 1970) were recovered from pelitic... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_278024" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The presence of bollandiine trilobites is reported for the first time in the early Carboniferous of Moravia, the Czech Republic. Bollandia persephone (Hahn & Hahn, 1970) and B. cf. megaira (Hahn & Hahn, 1970) were recovered from pelitic shales of late Tournaisian age within the Březina Formation exposed in Mokrá quarry, near Brno. Along with other taxa, these two species constitute a trilobite assemblage with few affinities to other Carboniferous associations known from the Czech Republic, but resemble an assemblage from the late Tournaisian of the Harz Mountains. Morphological characters of Bollandia species are interpreted as being indicative of an epibenthic mode of life, with possible adaptations for digging and for predatory/scavenging feeding habits.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/278024" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="3e6dd832db3525476b898a87183c79c4" rel="nofollow" data-download="{"attachment_id":1248458,"asset_id":278024,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/1248458/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="224642" href="https://une-au.academia.edu/RudyLeroseyAubril">Rudy Lerosey-Aubril</a><script data-card-contents-for-user="224642" type="text/json">{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}</script></span></span></li><li class="js-paper-rank-work_278024 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="278024"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 278024, container: ".js-paper-rank-work_278024", }); });</script></li><li class="js-percentile-work_278024 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 278024; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_278024"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_278024 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="278024"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 278024; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=278024]").text(description); $(".js-view-count-work_278024").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_278024").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="278024"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">9</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="10882" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolution">Evolution</a>, <script data-card-contents-for-ri="10882" type="text/json">{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17472" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeoecology">Palaeoecology</a>, <script data-card-contents-for-ri="17472" type="text/json">{"id":17472,"name":"Palaeoecology","url":"https://www.academia.edu/Documents/in/Palaeoecology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="17824" rel="nofollow" href="https://www.academia.edu/Documents/in/Systematics">Systematics</a>, <script data-card-contents-for-ri="17824" type="text/json">{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a><script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=278024]'), work: {"id":278024,"title":"First record of the Carboniferous trilobite Bollandia from the Moravian Karst (Czech Republic) and its significance. ","created_at":"2010-07-29T03:23:06.307-07:00","url":"https://www.academia.edu/278024/First_record_of_the_Carboniferous_trilobite_Bollandia_from_the_Moravian_Karst_Czech_Republic_and_its_significance?f_ri=24357","dom_id":"work_278024","summary":"The presence of bollandiine trilobites is reported for the first time in the early Carboniferous of Moravia, the Czech Republic. Bollandia persephone (Hahn \u0026 Hahn, 1970) and B. cf. megaira (Hahn \u0026 Hahn, 1970) were recovered from pelitic shales of late Tournaisian age within the Březina Formation exposed in Mokrá quarry, near Brno. Along with other taxa, these two species constitute a trilobite assemblage with few affinities to other Carboniferous associations known from the Czech Republic, but resemble an assemblage from the late Tournaisian of the Harz Mountains. Morphological characters of Bollandia species are interpreted as being indicative of an epibenthic mode of life, with possible adaptations for digging and for predatory/scavenging feeding habits.","downloadable_attachments":[{"id":1248458,"asset_id":278024,"asset_type":"Work","always_allow_download":false},{"id":31371801,"asset_id":278024,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":224642,"first_name":"Rudy","last_name":"Lerosey-Aubril","domain_name":"une-au","page_name":"RudyLeroseyAubril","display_name":"Rudy Lerosey-Aubril","profile_url":"https://une-au.academia.edu/RudyLeroseyAubril?f_ri=24357","photo":"https://0.academia-photos.com/224642/50366/2292050/s65_rudy.lerosey-aubril.jpg"}],"research_interests":[{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357","nofollow":true},{"id":17472,"name":"Palaeoecology","url":"https://www.academia.edu/Documents/in/Palaeoecology?f_ri=24357","nofollow":true},{"id":17824,"name":"Systematics","url":"https://www.academia.edu/Documents/in/Systematics?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":28845,"name":"Palaeobiology","url":"https://www.academia.edu/Documents/in/Palaeobiology?f_ri=24357"},{"id":39549,"name":"Czech Republic","url":"https://www.academia.edu/Documents/in/Czech_Republic?f_ri=24357"},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357"},{"id":96185,"name":"Carboniferous","url":"https://www.academia.edu/Documents/in/Carboniferous?f_ri=24357"},{"id":165795,"name":"Proetida","url":"https://www.academia.edu/Documents/in/Proetida?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_229348" data-work_id="229348" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/229348/TIMSALOPROETUS_NEW_GENUS_PROETIDA_TRILOBITA_AND_INCLUDED_SPECIES_FROM_LOWER_AND_MIDDLE_DEVONIAN_STRATA_OF_SOUTHERN_MOROCCO">TIMSALOPROETUS NEW GENUS (PROETIDA: TRILOBITA) AND INCLUDED SPECIES FROM LOWER AND MIDDLE DEVONIAN STRATA OF SOUTHERN MOROCCO </a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/229348" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="90ba1825ea835f2068d736a7f029f0bb" rel="nofollow" data-download="{"attachment_id":901183,"asset_id":229348,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/901183/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="171759" href="https://independent.academia.edu/GibbStacey">Stacey Gibb</a><script data-card-contents-for-user="171759" type="text/json">{"id":171759,"first_name":"Stacey","last_name":"Gibb","domain_name":"independent","page_name":"GibbStacey","display_name":"Stacey Gibb","profile_url":"https://independent.academia.edu/GibbStacey?f_ri=24357","photo":"https://0.academia-photos.com/171759/43080/4170902/s65_stacey.gibb.jpg"}</script></span></span></li><li class="js-paper-rank-work_229348 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="229348"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 229348, container: ".js-paper-rank-work_229348", }); });</script></li><li class="js-percentile-work_229348 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 229348; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_229348"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_229348 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="229348"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 229348; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=229348]").text(description); $(".js-view-count-work_229348").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_229348").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="229348"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="13684" rel="nofollow" href="https://www.academia.edu/Documents/in/Morocco">Morocco</a>, <script data-card-contents-for-ri="13684" type="text/json">{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="33576" rel="nofollow" href="https://www.academia.edu/Documents/in/Invertebrate_Paleontology">Invertebrate Paleontology</a>, <script data-card-contents-for-ri="33576" type="text/json">{"id":33576,"name":"Invertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Paleontology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="76748" rel="nofollow" href="https://www.academia.edu/Documents/in/Devonian">Devonian</a><script data-card-contents-for-ri="76748" type="text/json">{"id":76748,"name":"Devonian","url":"https://www.academia.edu/Documents/in/Devonian?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=229348]'), work: {"id":229348,"title":"TIMSALOPROETUS NEW GENUS (PROETIDA: TRILOBITA) AND INCLUDED SPECIES FROM LOWER AND MIDDLE DEVONIAN STRATA OF SOUTHERN MOROCCO ","created_at":"2010-04-18T06:10:59.885-07:00","url":"https://www.academia.edu/229348/TIMSALOPROETUS_NEW_GENUS_PROETIDA_TRILOBITA_AND_INCLUDED_SPECIES_FROM_LOWER_AND_MIDDLE_DEVONIAN_STRATA_OF_SOUTHERN_MOROCCO?f_ri=24357","dom_id":"work_229348","summary":null,"downloadable_attachments":[{"id":901183,"asset_id":229348,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":171759,"first_name":"Stacey","last_name":"Gibb","domain_name":"independent","page_name":"GibbStacey","display_name":"Stacey Gibb","profile_url":"https://independent.academia.edu/GibbStacey?f_ri=24357","photo":"https://0.academia-photos.com/171759/43080/4170902/s65_stacey.gibb.jpg"}],"research_interests":[{"id":13684,"name":"Morocco","url":"https://www.academia.edu/Documents/in/Morocco?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":33576,"name":"Invertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Paleontology?f_ri=24357","nofollow":true},{"id":76748,"name":"Devonian","url":"https://www.academia.edu/Documents/in/Devonian?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_30128376" data-work_id="30128376" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/30128376/La_Fauna_Fossil_de_Canelas_Arouca_Portugal_Els_trilobits_2016_in_Catalan_pdf">La Fauna Fossil de Canelas (Arouca-Portugal). Els trilobits (2016, in Catalan).pdf</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/30128376" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="5b5945c0d2a4c915425d336fdc1231b5" rel="nofollow" data-download="{"attachment_id":50588196,"asset_id":30128376,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/50588196/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="134181" href="https://cria.academia.edu/ArmandoMarquesGuedes">Armando Marques-Guedes</a><script data-card-contents-for-user="134181" type="text/json">{"id":134181,"first_name":"Armando","last_name":"Marques-Guedes","domain_name":"cria","page_name":"ArmandoMarquesGuedes","display_name":"Armando Marques-Guedes","profile_url":"https://cria.academia.edu/ArmandoMarquesGuedes?f_ri=24357","photo":"https://0.academia-photos.com/134181/3401094/148494125/s65_armando.marques-guedes.png"}</script></span></span></li><li class="js-paper-rank-work_30128376 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="30128376"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 30128376, container: ".js-paper-rank-work_30128376", }); });</script></li><li class="js-percentile-work_30128376 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 30128376; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_30128376"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_30128376 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="30128376"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 30128376; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=30128376]").text(description); $(".js-view-count-work_30128376").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_30128376").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="30128376"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">105</a>  </div><span class="InlineList-item-text u-textTruncate u-pl11x"><a class="InlineList-item-text" data-has-card-for-ri="32" rel="nofollow" href="https://www.academia.edu/Documents/in/Organizational_Behavior">Organizational Behavior</a>, <script data-card-contents-for-ri="32" type="text/json">{"id":32,"name":"Organizational Behavior","url":"https://www.academia.edu/Documents/in/Organizational_Behavior?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="128" rel="nofollow" href="https://www.academia.edu/Documents/in/History">History</a>, <script data-card-contents-for-ri="128" type="text/json">{"id":128,"name":"History","url":"https://www.academia.edu/Documents/in/History?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="153" rel="nofollow" href="https://www.academia.edu/Documents/in/Landscape_Ecology">Landscape Ecology</a>, <script data-card-contents-for-ri="153" type="text/json">{"id":153,"name":"Landscape Ecology","url":"https://www.academia.edu/Documents/in/Landscape_Ecology?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="155" rel="nofollow" href="https://www.academia.edu/Documents/in/Evolutionary_Biology">Evolutionary Biology</a><script data-card-contents-for-ri="155" type="text/json">{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=30128376]'), work: {"id":30128376,"title":"La Fauna Fossil de Canelas (Arouca-Portugal). Els trilobits (2016, in Catalan).pdf","created_at":"2016-11-28T02:35:09.846-08:00","url":"https://www.academia.edu/30128376/La_Fauna_Fossil_de_Canelas_Arouca_Portugal_Els_trilobits_2016_in_Catalan_pdf?f_ri=24357","dom_id":"work_30128376","summary":null,"downloadable_attachments":[{"id":50588196,"asset_id":30128376,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":134181,"first_name":"Armando","last_name":"Marques-Guedes","domain_name":"cria","page_name":"ArmandoMarquesGuedes","display_name":"Armando Marques-Guedes","profile_url":"https://cria.academia.edu/ArmandoMarquesGuedes?f_ri=24357","photo":"https://0.academia-photos.com/134181/3401094/148494125/s65_armando.marques-guedes.png"}],"research_interests":[{"id":32,"name":"Organizational Behavior","url":"https://www.academia.edu/Documents/in/Organizational_Behavior?f_ri=24357","nofollow":true},{"id":128,"name":"History","url":"https://www.academia.edu/Documents/in/History?f_ri=24357","nofollow":true},{"id":153,"name":"Landscape Ecology","url":"https://www.academia.edu/Documents/in/Landscape_Ecology?f_ri=24357","nofollow":true},{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology?f_ri=24357","nofollow":true},{"id":158,"name":"Marine Biology","url":"https://www.academia.edu/Documents/in/Marine_Biology?f_ri=24357"},{"id":162,"name":"Paleobiology","url":"https://www.academia.edu/Documents/in/Paleobiology?f_ri=24357"},{"id":173,"name":"Zoology","url":"https://www.academia.edu/Documents/in/Zoology?f_ri=24357"},{"id":184,"name":"Sociology","url":"https://www.academia.edu/Documents/in/Sociology?f_ri=24357"},{"id":201,"name":"Political Sociology","url":"https://www.academia.edu/Documents/in/Political_Sociology?f_ri=24357"},{"id":261,"name":"Geography","url":"https://www.academia.edu/Documents/in/Geography?f_ri=24357"},{"id":289,"name":"Palaeogeography","url":"https://www.academia.edu/Documents/in/Palaeogeography?f_ri=24357"},{"id":292,"name":"Palaeoclimatology","url":"https://www.academia.edu/Documents/in/Palaeoclimatology?f_ri=24357"},{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science?f_ri=24357"},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=24357"},{"id":417,"name":"Paleontology","url":"https://www.academia.edu/Documents/in/Paleontology?f_ri=24357"},{"id":420,"name":"Sedimentology","url":"https://www.academia.edu/Documents/in/Sedimentology?f_ri=24357"},{"id":724,"name":"Economics","url":"https://www.academia.edu/Documents/in/Economics?f_ri=24357"},{"id":803,"name":"Philosophy","url":"https://www.academia.edu/Documents/in/Philosophy?f_ri=24357"},{"id":922,"name":"Education","url":"https://www.academia.edu/Documents/in/Education?f_ri=24357"},{"id":1047,"name":"Behavioral Sciences","url":"https://www.academia.edu/Documents/in/Behavioral_Sciences?f_ri=24357"},{"id":1237,"name":"Social Sciences","url":"https://www.academia.edu/Documents/in/Social_Sciences?f_ri=24357"},{"id":1419,"name":"Structural Geology","url":"https://www.academia.edu/Documents/in/Structural_Geology?f_ri=24357"},{"id":1420,"name":"Aquatic Ecology","url":"https://www.academia.edu/Documents/in/Aquatic_Ecology?f_ri=24357"},{"id":1696,"name":"Political Theory","url":"https://www.academia.edu/Documents/in/Political_Theory?f_ri=24357"},{"id":1723,"name":"Palaeoenvironment","url":"https://www.academia.edu/Documents/in/Palaeoenvironment?f_ri=24357"},{"id":1736,"name":"Science Education","url":"https://www.academia.edu/Documents/in/Science_Education?f_ri=24357"},{"id":2222,"name":"Portuguese Studies","url":"https://www.academia.edu/Documents/in/Portuguese_Studies?f_ri=24357"},{"id":2258,"name":"Paleoclimatology","url":"https://www.academia.edu/Documents/in/Paleoclimatology?f_ri=24357"},{"id":2621,"name":"Higher Education","url":"https://www.academia.edu/Documents/in/Higher_Education?f_ri=24357"},{"id":2749,"name":"Animal Behavior","url":"https://www.academia.edu/Documents/in/Animal_Behavior?f_ri=24357"},{"id":2861,"name":"Portuguese History","url":"https://www.academia.edu/Documents/in/Portuguese_History?f_ri=24357"},{"id":3110,"name":"Marine Geology","url":"https://www.academia.edu/Documents/in/Marine_Geology?f_ri=24357"},{"id":3126,"name":"Political Ecology","url":"https://www.academia.edu/Documents/in/Political_Ecology?f_ri=24357"},{"id":3255,"name":"Climate Change Adaptation","url":"https://www.academia.edu/Documents/in/Climate_Change_Adaptation?f_ri=24357"},{"id":3407,"name":"Environmental Studies","url":"https://www.academia.edu/Documents/in/Environmental_Studies?f_ri=24357"},{"id":3429,"name":"Educational Research","url":"https://www.academia.edu/Documents/in/Educational_Research?f_ri=24357"},{"id":4011,"name":"Ecological Economics","url":"https://www.academia.edu/Documents/in/Ecological_Economics?f_ri=24357"},{"id":4035,"name":"Marine Ecology","url":"https://www.academia.edu/Documents/in/Marine_Ecology?f_ri=24357"},{"id":4154,"name":"Iberian Studies","url":"https://www.academia.edu/Documents/in/Iberian_Studies?f_ri=24357"},{"id":4267,"name":"Community Ecology","url":"https://www.academia.edu/Documents/in/Community_Ecology?f_ri=24357"},{"id":4486,"name":"Political Science","url":"https://www.academia.edu/Documents/in/Political_Science?f_ri=24357"},{"id":4558,"name":"Invertebrate Biology","url":"https://www.academia.edu/Documents/in/Invertebrate_Biology?f_ri=24357"},{"id":4925,"name":"Marine Protected Areas","url":"https://www.academia.edu/Documents/in/Marine_Protected_Areas?f_ri=24357"},{"id":5677,"name":"Adaptation","url":"https://www.academia.edu/Documents/in/Adaptation?f_ri=24357"},{"id":7075,"name":"Paleoenvironment","url":"https://www.academia.edu/Documents/in/Paleoenvironment?f_ri=24357"},{"id":7101,"name":"Paleoecology","url":"https://www.academia.edu/Documents/in/Paleoecology?f_ri=24357"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology?f_ri=24357"},{"id":8801,"name":"Natural Resource Management","url":"https://www.academia.edu/Documents/in/Natural_Resource_Management?f_ri=24357"},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology?f_ri=24357"},{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution?f_ri=24357"},{"id":13805,"name":"Behavioral Economics","url":"https://www.academia.edu/Documents/in/Behavioral_Economics?f_ri=24357"},{"id":16441,"name":"Marine Science","url":"https://www.academia.edu/Documents/in/Marine_Science?f_ri=24357"},{"id":17472,"name":"Palaeoecology","url":"https://www.academia.edu/Documents/in/Palaeoecology?f_ri=24357"},{"id":17635,"name":"Marine biodiversity","url":"https://www.academia.edu/Documents/in/Marine_biodiversity?f_ri=24357"},{"id":18534,"name":"Mechanical Behavior Of Materials","url":"https://www.academia.edu/Documents/in/Mechanical_Behavior_Of_Materials?f_ri=24357"},{"id":18594,"name":"Evolutionary Ecology","url":"https://www.academia.edu/Documents/in/Evolutionary_Ecology?f_ri=24357"},{"id":18987,"name":"Natural Science","url":"https://www.academia.edu/Documents/in/Natural_Science?f_ri=24357"},{"id":20564,"name":"Engineering Geology","url":"https://www.academia.edu/Documents/in/Engineering_Geology?f_ri=24357"},{"id":22498,"name":"Invertebrate Zoology","url":"https://www.academia.edu/Documents/in/Invertebrate_Zoology?f_ri=24357"},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357"},{"id":25730,"name":"Behavioral Ecology","url":"https://www.academia.edu/Documents/in/Behavioral_Ecology?f_ri=24357"},{"id":26916,"name":"Spain (History)","url":"https://www.academia.edu/Documents/in/Spain_History_?f_ri=24357"},{"id":27854,"name":"Darwin","url":"https://www.academia.edu/Documents/in/Darwin?f_ri=24357"},{"id":28160,"name":"Palaeontology","url":"https://www.academia.edu/Documents/in/Palaeontology?f_ri=24357"},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357"},{"id":33319,"name":"Nature","url":"https://www.academia.edu/Documents/in/Nature?f_ri=24357"},{"id":33575,"name":"Mass extinctions","url":"https://www.academia.edu/Documents/in/Mass_extinctions?f_ri=24357"},{"id":33576,"name":"Invertebrate Paleontology","url":"https://www.academia.edu/Documents/in/Invertebrate_Paleontology?f_ri=24357"},{"id":35801,"name":"Climate Change Impacts","url":"https://www.academia.edu/Documents/in/Climate_Change_Impacts?f_ri=24357"},{"id":37270,"name":"Biology Education","url":"https://www.academia.edu/Documents/in/Biology_Education?f_ri=24357"},{"id":37681,"name":"Portugal (History)","url":"https://www.academia.edu/Documents/in/Portugal_History_?f_ri=24357"},{"id":40516,"name":"Spain","url":"https://www.academia.edu/Documents/in/Spain?f_ri=24357"},{"id":42066,"name":"Early modern Spain","url":"https://www.academia.edu/Documents/in/Early_modern_Spain?f_ri=24357"},{"id":44510,"name":"Portugal","url":"https://www.academia.edu/Documents/in/Portugal?f_ri=24357"},{"id":44861,"name":"Catalonia","url":"https://www.academia.edu/Documents/in/Catalonia?f_ri=24357"},{"id":48807,"name":"Sedimentary geology and stratigraphy","url":"https://www.academia.edu/Documents/in/Sedimentary_geology_and_stratigraphy?f_ri=24357"},{"id":49837,"name":"Historia","url":"https://www.academia.edu/Documents/in/Historia?f_ri=24357"},{"id":51625,"name":"Educación","url":"https://www.academia.edu/Documents/in/Educaci%C3%B3n?f_ri=24357"},{"id":52660,"name":"Protohistoric Iberian Peninsula","url":"https://www.academia.edu/Documents/in/Protohistoric_Iberian_Peninsula?f_ri=24357"},{"id":57925,"name":"Arthropoda","url":"https://www.academia.edu/Documents/in/Arthropoda?f_ri=24357"},{"id":70233,"name":"Trace Fossils","url":"https://www.academia.edu/Documents/in/Trace_Fossils?f_ri=24357"},{"id":78109,"name":"Cambrian","url":"https://www.academia.edu/Documents/in/Cambrian?f_ri=24357"},{"id":78133,"name":"Gondwana","url":"https://www.academia.edu/Documents/in/Gondwana?f_ri=24357"},{"id":79166,"name":"Ordovician","url":"https://www.academia.edu/Documents/in/Ordovician?f_ri=24357"},{"id":83925,"name":"Biologia","url":"https://www.academia.edu/Documents/in/Biologia?f_ri=24357"},{"id":86369,"name":"Ecologia","url":"https://www.academia.edu/Documents/in/Ecologia?f_ri=24357"},{"id":90326,"name":"Fossils","url":"https://www.academia.edu/Documents/in/Fossils?f_ri=24357"},{"id":93811,"name":"Educação","url":"https://www.academia.edu/Documents/in/Educa%C3%A7%C3%A3o?f_ri=24357"},{"id":94388,"name":"Trilobite","url":"https://www.academia.edu/Documents/in/Trilobite?f_ri=24357"},{"id":99359,"name":"Zoologia","url":"https://www.academia.edu/Documents/in/Zoologia?f_ri=24357"},{"id":117338,"name":"Arthropod","url":"https://www.academia.edu/Documents/in/Arthropod?f_ri=24357"},{"id":147519,"name":"Geologia","url":"https://www.academia.edu/Documents/in/Geologia?f_ri=24357"},{"id":167352,"name":"Paleontologia","url":"https://www.academia.edu/Documents/in/Paleontologia?f_ri=24357"},{"id":224606,"name":"Ecología","url":"https://www.academia.edu/Documents/in/Ecolog%C3%ADa?f_ri=24357"},{"id":240084,"name":"Gondwana Research","url":"https://www.academia.edu/Documents/in/Gondwana_Research?f_ri=24357"},{"id":245668,"name":"Arthropods","url":"https://www.academia.edu/Documents/in/Arthropods?f_ri=24357"},{"id":475685,"name":"écologie","url":"https://www.academia.edu/Documents/in/%C3%A9cologie?f_ri=24357"},{"id":513998,"name":"Gondwanaland","url":"https://www.academia.edu/Documents/in/Gondwanaland?f_ri=24357"},{"id":522274,"name":"Gondwana Palaeobotany","url":"https://www.academia.edu/Documents/in/Gondwana_Palaeobotany?f_ri=24357"},{"id":591254,"name":"Gondwana Sediments","url":"https://www.academia.edu/Documents/in/Gondwana_Sediments?f_ri=24357"},{"id":724296,"name":"Ordovician Stratigraphy","url":"https://www.academia.edu/Documents/in/Ordovician_Stratigraphy?f_ri=24357"},{"id":752347,"name":"Ciencias De La Tierra","url":"https://www.academia.edu/Documents/in/Ciencias_De_La_Tierra?f_ri=24357"},{"id":752663,"name":"Ordovician Paleoecology","url":"https://www.academia.edu/Documents/in/Ordovician_Paleoecology?f_ri=24357"},{"id":814939,"name":"Gondwana margin","url":"https://www.academia.edu/Documents/in/Gondwana_margin?f_ri=24357"},{"id":1011672,"name":"West Gondwana","url":"https://www.academia.edu/Documents/in/West_Gondwana?f_ri=24357"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_14187253" data-work_id="14187253" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/14187253/Die_Trilobitensammlung_der_Universit%C3%A4t_Wien_Vorbericht_zum_Katalog_zur_Sammlung">Die Trilobitensammlung der Universität Wien: Vorbericht zum Katalog zur Sammlung</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/14187253" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="1fcf6ac0ef99594c2eb99807f8f3dad4" rel="nofollow" data-download="{"attachment_id":38228514,"asset_id":14187253,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/38228514/download_file?st=MTc0MDUwNzM0MCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3042744" href="https://univie.academia.edu/MatthiasSvojtka">Matthias Svojtka</a><script data-card-contents-for-user="3042744" type="text/json">{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}</script></span></span></li><li class="js-paper-rank-work_14187253 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="14187253"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 14187253, container: ".js-paper-rank-work_14187253", }); });</script></li><li class="js-percentile-work_14187253 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 14187253; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_14187253"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_14187253 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="14187253"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 14187253; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=14187253]").text(description); $(".js-view-count-work_14187253").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_14187253").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="14187253"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">3</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="15761" rel="nofollow" href="https://www.academia.edu/Documents/in/History_of_Collections">History of Collections</a>, <script data-card-contents-for-ri="15761" type="text/json">{"id":15761,"name":"History of Collections","url":"https://www.academia.edu/Documents/in/History_of_Collections?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24357" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobita">Trilobita</a>, <script data-card-contents-for-ri="24357" type="text/json">{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="30606" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a><script data-card-contents-for-ri="30606" type="text/json">{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=14187253]'), work: {"id":14187253,"title":"Die Trilobitensammlung der Universität Wien: Vorbericht zum Katalog zur Sammlung","created_at":"2015-07-19T06:00:37.239-07:00","url":"https://www.academia.edu/14187253/Die_Trilobitensammlung_der_Universit%C3%A4t_Wien_Vorbericht_zum_Katalog_zur_Sammlung?f_ri=24357","dom_id":"work_14187253","summary":null,"downloadable_attachments":[{"id":38228514,"asset_id":14187253,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3042744,"first_name":"Matthias","last_name":"Svojtka","domain_name":"univie","page_name":"MatthiasSvojtka","display_name":"Matthias Svojtka","profile_url":"https://univie.academia.edu/MatthiasSvojtka?f_ri=24357","photo":"https://0.academia-photos.com/3042744/1000183/18111233/s65_matthias.svojtka.jpeg"}],"research_interests":[{"id":15761,"name":"History of Collections","url":"https://www.academia.edu/Documents/in/History_of_Collections?f_ri=24357","nofollow":true},{"id":24357,"name":"Trilobita","url":"https://www.academia.edu/Documents/in/Trilobita?f_ri=24357","nofollow":true},{"id":30606,"name":"Trilobites","url":"https://www.academia.edu/Documents/in/Trilobites?f_ri=24357","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div></div><div class="u-taCenter Pagination"><ul class="pagination"><li class="next_page"><a href="/Documents/in/Trilobita?after=50%2C14187253" rel="next">Next</a></li><li class="last next"><a href="/Documents/in/Trilobita?page=last">Last »</a></li></ul></div></div><div class="hidden-xs hidden-sm"><div class="u-pl6x"><div style="width: 300px;"><div class="panel panel-flat u-mt7x"><div class="panel-heading u-p5x"><div class="u-tcGrayDark u-taCenter u-fw700 u-textUppercase">Related Topics</div></div><ul class="list-group"><li class="list-group-item media_v2 u-mt0x u-p3x"><div class="media-body"><div class="u-tcGrayDarker u-fw700"><a class="u-tcGrayDarker" rel="nofollow" href="https://www.academia.edu/Documents/in/Invertebrate_Paleontology">Invertebrate Paleontology</a></div></div><div class="media-right media-middle"><a class="u-tcGreen u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-follow-ri-id="33576">Follow</a><a class="u-tcGray u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-unfollow-ri-id="33576">Following</a></div></li><li class="list-group-item media_v2 u-mt0x u-p3x"><div class="media-body"><div class="u-tcGrayDarker u-fw700"><a class="u-tcGrayDarker" rel="nofollow" href="https://www.academia.edu/Documents/in/Devonian">Devonian</a></div></div><div class="media-right media-middle"><a class="u-tcGreen u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-follow-ri-id="76748">Follow</a><a class="u-tcGray u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-unfollow-ri-id="76748">Following</a></div></li><li class="list-group-item media_v2 u-mt0x u-p3x"><div class="media-body"><div class="u-tcGrayDarker u-fw700"><a class="u-tcGrayDarker" rel="nofollow" href="https://www.academia.edu/Documents/in/Trilobites">Trilobites</a></div></div><div class="media-right media-middle"><a class="u-tcGreen u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-follow-ri-id="30606">Follow</a><a class="u-tcGray u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-unfollow-ri-id="30606">Following</a></div></li><li class="list-group-item media_v2 u-mt0x u-p3x"><div class="media-body"><div class="u-tcGrayDarker u-fw700"><a class="u-tcGrayDarker" rel="nofollow" href="https://www.academia.edu/Documents/in/Water_Safety_Drowning_Lifesaving">Water Safety/Drowning/Lifesaving</a></div></div><div class="media-right media-middle"><a class="u-tcGreen u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-follow-ri-id="1411">Follow</a><a class="u-tcGray u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-unfollow-ri-id="1411">Following</a></div></li><li class="list-group-item media_v2 u-mt0x u-p3x"><div class="media-body"><div class="u-tcGrayDarker u-fw700"><a class="u-tcGrayDarker" rel="nofollow" href="https://www.academia.edu/Documents/in/Cambrian">Cambrian</a></div></div><div class="media-right media-middle"><a class="u-tcGreen u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-follow-ri-id="78109">Follow</a><a class="u-tcGray u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-unfollow-ri-id="78109">Following</a></div></li><li class="list-group-item media_v2 u-mt0x u-p3x"><div class="media-body"><div class="u-tcGrayDarker u-fw700"><a class="u-tcGrayDarker" rel="nofollow" href="https://www.academia.edu/Documents/in/Sea_Cucumber_Fisheries_and_Aquaculture">Sea Cucumber Fisheries and Aquaculture</a></div></div><div class="media-right media-middle"><a class="u-tcGreen u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-follow-ri-id="488099">Follow</a><a class="u-tcGray u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-unfollow-ri-id="488099">Following</a></div></li><li class="list-group-item media_v2 u-mt0x u-p3x"><div class="media-body"><div class="u-tcGrayDarker u-fw700"><a class="u-tcGrayDarker" rel="nofollow" href="https://www.academia.edu/Documents/in/Fisheries_Microbiology">Fisheries Microbiology</a></div></div><div class="media-right media-middle"><a class="u-tcGreen u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-follow-ri-id="752584">Follow</a><a class="u-tcGray u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-unfollow-ri-id="752584">Following</a></div></li><li class="list-group-item media_v2 u-mt0x u-p3x"><div class="media-body"><div class="u-tcGrayDarker u-fw700"><a class="u-tcGrayDarker" rel="nofollow" href="https://www.academia.edu/Documents/in/Ichnology">Ichnology</a></div></div><div class="media-right media-middle"><a class="u-tcGreen u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-follow-ri-id="2588">Follow</a><a class="u-tcGray u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-unfollow-ri-id="2588">Following</a></div></li><li class="list-group-item media_v2 u-mt0x u-p3x"><div class="media-body"><div class="u-tcGrayDarker u-fw700"><a class="u-tcGrayDarker" rel="nofollow" href="https://www.academia.edu/Documents/in/Arthropoda">Arthropoda</a></div></div><div class="media-right media-middle"><a class="u-tcGreen u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-follow-ri-id="57925">Follow</a><a class="u-tcGray u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-unfollow-ri-id="57925">Following</a></div></li><li class="list-group-item media_v2 u-mt0x u-p3x"><div class="media-body"><div class="u-tcGrayDarker u-fw700"><a class="u-tcGrayDarker" rel="nofollow" href="https://www.academia.edu/Documents/in/Invertebrate_Ichnology">Invertebrate Ichnology</a></div></div><div class="media-right media-middle"><a class="u-tcGreen u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-follow-ri-id="2589">Follow</a><a class="u-tcGray u-textDecorationNone u-linkUnstyled u-fw500 hidden" data-unfollow-ri-id="2589">Following</a></div></li></ul></div></div></div></div></div></div><script>// MIT License // Copyright © 2011 Sebastian Tschan, https://blueimp.net // Permission is hereby granted, free of charge, to any person obtaining a copy of // this software and associated documentation files (the "Software"), to deal in // the Software without restriction, including without limitation the rights to // use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of // the Software, and to permit persons to whom the Software is furnished to do so, // subject to the following conditions: // The above copyright notice and this permission notice shall be included in all // copies or substantial portions of the Software. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS // FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR // COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER // IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN // CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. !function(n){"use strict";function d(n,t){var r=(65535&n)+(65535&t);return(n>>16)+(t>>16)+(r>>16)<<16|65535&r}function f(n,t,r,e,o,u){return d((c=d(d(t,n),d(e,u)))<<(f=o)|c>>>32-f,r);var c,f}function l(n,t,r,e,o,u,c){return f(t&r|~t&e,n,t,o,u,c)}function v(n,t,r,e,o,u,c){return f(t&e|r&~e,n,t,o,u,c)}function g(n,t,r,e,o,u,c){return f(t^r^e,n,t,o,u,c)}function m(n,t,r,e,o,u,c){return f(r^(t|~e),n,t,o,u,c)}function i(n,t){var r,e,o,u;n[t>>5]|=128<<t%32,n[14+(t+64>>>9<<4)]=t;for(var c=1732584193,f=-271733879,i=-1732584194,a=271733878,h=0;h<n.length;h+=16)c=l(r=c,e=f,o=i,u=a,n[h],7,-680876936),a=l(a,c,f,i,n[h+1],12,-389564586),i=l(i,a,c,f,n[h+2],17,606105819),f=l(f,i,a,c,n[h+3],22,-1044525330),c=l(c,f,i,a,n[h+4],7,-176418897),a=l(a,c,f,i,n[h+5],12,1200080426),i=l(i,a,c,f,n[h+6],17,-1473231341),f=l(f,i,a,c,n[h+7],22,-45705983),c=l(c,f,i,a,n[h+8],7,1770035416),a=l(a,c,f,i,n[h+9],12,-1958414417),i=l(i,a,c,f,n[h+10],17,-42063),f=l(f,i,a,c,n[h+11],22,-1990404162),c=l(c,f,i,a,n[h+12],7,1804603682),a=l(a,c,f,i,n[h+13],12,-40341101),i=l(i,a,c,f,n[h+14],17,-1502002290),c=v(c,f=l(f,i,a,c,n[h+15],22,1236535329),i,a,n[h+1],5,-165796510),a=v(a,c,f,i,n[h+6],9,-1069501632),i=v(i,a,c,f,n[h+11],14,643717713),f=v(f,i,a,c,n[h],20,-373897302),c=v(c,f,i,a,n[h+5],5,-701558691),a=v(a,c,f,i,n[h+10],9,38016083),i=v(i,a,c,f,n[h+15],14,-660478335),f=v(f,i,a,c,n[h+4],20,-405537848),c=v(c,f,i,a,n[h+9],5,568446438),a=v(a,c,f,i,n[h+14],9,-1019803690),i=v(i,a,c,f,n[h+3],14,-187363961),f=v(f,i,a,c,n[h+8],20,1163531501),c=v(c,f,i,a,n[h+13],5,-1444681467),a=v(a,c,f,i,n[h+2],9,-51403784),i=v(i,a,c,f,n[h+7],14,1735328473),c=g(c,f=v(f,i,a,c,n[h+12],20,-1926607734),i,a,n[h+5],4,-378558),a=g(a,c,f,i,n[h+8],11,-2022574463),i=g(i,a,c,f,n[h+11],16,1839030562),f=g(f,i,a,c,n[h+14],23,-35309556),c=g(c,f,i,a,n[h+1],4,-1530992060),a=g(a,c,f,i,n[h+4],11,1272893353),i=g(i,a,c,f,n[h+7],16,-155497632),f=g(f,i,a,c,n[h+10],23,-1094730640),c=g(c,f,i,a,n[h+13],4,681279174),a=g(a,c,f,i,n[h],11,-358537222),i=g(i,a,c,f,n[h+3],16,-722521979),f=g(f,i,a,c,n[h+6],23,76029189),c=g(c,f,i,a,n[h+9],4,-640364487),a=g(a,c,f,i,n[h+12],11,-421815835),i=g(i,a,c,f,n[h+15],16,530742520),c=m(c,f=g(f,i,a,c,n[h+2],23,-995338651),i,a,n[h],6,-198630844),a=m(a,c,f,i,n[h+7],10,1126891415),i=m(i,a,c,f,n[h+14],15,-1416354905),f=m(f,i,a,c,n[h+5],21,-57434055),c=m(c,f,i,a,n[h+12],6,1700485571),a=m(a,c,f,i,n[h+3],10,-1894986606),i=m(i,a,c,f,n[h+10],15,-1051523),f=m(f,i,a,c,n[h+1],21,-2054922799),c=m(c,f,i,a,n[h+8],6,1873313359),a=m(a,c,f,i,n[h+15],10,-30611744),i=m(i,a,c,f,n[h+6],15,-1560198380),f=m(f,i,a,c,n[h+13],21,1309151649),c=m(c,f,i,a,n[h+4],6,-145523070),a=m(a,c,f,i,n[h+11],10,-1120210379),i=m(i,a,c,f,n[h+2],15,718787259),f=m(f,i,a,c,n[h+9],21,-343485551),c=d(c,r),f=d(f,e),i=d(i,o),a=d(a,u);return[c,f,i,a]}function a(n){for(var t="",r=32*n.length,e=0;e<r;e+=8)t+=String.fromCharCode(n[e>>5]>>>e%32&255);return t}function h(n){var t=[];for(t[(n.length>>2)-1]=void 0,e=0;e<t.length;e+=1)t[e]=0;for(var r=8*n.length,e=0;e<r;e+=8)t[e>>5]|=(255&n.charCodeAt(e/8))<<e%32;return t}function e(n){for(var t,r="0123456789abcdef",e="",o=0;o<n.length;o+=1)t=n.charCodeAt(o),e+=r.charAt(t>>>4&15)+r.charAt(15&t);return e}function r(n){return unescape(encodeURIComponent(n))}function o(n){return a(i(h(t=r(n)),8*t.length));var t}function u(n,t){return function(n,t){var r,e,o=h(n),u=[],c=[];for(u[15]=c[15]=void 0,16<o.length&&(o=i(o,8*n.length)),r=0;r<16;r+=1)u[r]=909522486^o[r],c[r]=1549556828^o[r];return e=i(u.concat(h(t)),512+8*t.length),a(i(c.concat(e),640))}(r(n),r(t))}function t(n,t,r){return t?r?u(t,n):e(u(t,n)):r?o(n):e(o(n))}"function"==typeof define&&define.amd?define(function(){return t}):"object"==typeof module&&module.exports?module.exports=t:n.md5=t}(this);</script><script>window.AbTest = (function() { return { 'ab_test': (uniqueId, test_name, buckets) => { let override = new URLSearchParams(window.location.search).get(`ab_test[${test_name}]`); if ( override ) { return override; } const bucketNames = buckets.map((bucket) => { return typeof bucket === 'string' ? bucket : Object.keys(bucket)[0]; }); const weights = buckets.map((bucket) => { return typeof bucket === 'string' ? 1 : Object.values(bucket)[0]; }); const total = weights.reduce((sum, weight) => sum + weight); const hash = md5(`${uniqueId}${test_name}`); const hashNum = parseInt(hash.slice(-12), 16); let bucketPoint = total * (hashNum % 100000) / 100000; const bucket = bucketNames.find((_, i) => { if (weights[i] > bucketPoint) { return true; } bucketPoint -= weights[i]; return false; }); return bucket; } }; })();</script><div data-auto_select="false" data-client_id="331998490334-rsn3chp12mbkiqhl6e7lu2q0mlbu0f1b" data-landing_url="https://www.academia.edu/Documents/in/Trilobita" data-login_uri="https://www.academia.edu/registrations/google_one_tap" data-moment_callback="onGoogleOneTapEvent" id="g_id_onload"></div><script>function onGoogleOneTapEvent(event) { var momentType = event.getMomentType(); var momentReason = null; if (event.isNotDisplayed()) { momentReason = event.getNotDisplayedReason(); } else if (event.isSkippedMoment()) { momentReason = event.getSkippedReason(); } else if (event.isDismissedMoment()) { momentReason = event.getDismissedReason(); } Aedu.arbitraryEvents.write('GoogleOneTapEvent', { moment_type: momentType, moment_reason: momentReason, }); }</script><script>(function() { var auvid = unescape( document.cookie .split(/; ?/) .find((s) => s.startsWith('auvid')) .substring(6)); var bucket = AbTest.ab_test(auvid, 'lo_ri_one_tap_google_sign_on', ['control', 'one_tap_google_sign_on']); if (bucket === 'control') return; var oneTapTag = document.createElement('script') oneTapTag.async = true oneTapTag.defer = true oneTapTag.src = 'https://accounts.google.com/gsi/client' document.body.appendChild(oneTapTag) })();</script></div></div></div> </div> <div class="bootstrap login"><div class="modal fade login-modal" id="login-modal"><div class="login-modal-dialog modal-dialog"><div class="modal-content"><div class="modal-header"><button class="close close" data-dismiss="modal" type="button"><span aria-hidden="true">×</span><span class="sr-only">Close</span></button><h4 class="modal-title text-center"><strong>Log In</strong></h4></div><div class="modal-body"><div class="row"><div class="col-xs-10 col-xs-offset-1"><button class="btn btn-fb btn-lg btn-block btn-v-center-content" id="login-facebook-oauth-button"><svg style="float: left; width: 19px; line-height: 1em; margin-right: .3em;" aria-hidden="true" focusable="false" data-prefix="fab" data-icon="facebook-square" class="svg-inline--fa fa-facebook-square fa-w-14" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path fill="currentColor" d="M400 32H48A48 48 0 0 0 0 80v352a48 48 0 0 0 48 48h137.25V327.69h-63V256h63v-54.64c0-62.15 37-96.48 93.67-96.48 27.14 0 55.52 4.84 55.52 4.84v61h-31.27c-30.81 0-40.42 19.12-40.42 38.73V256h68.78l-11 71.69h-57.78V480H400a48 48 0 0 0 48-48V80a48 48 0 0 0-48-48z"></path></svg><small><strong>Log in</strong> with <strong>Facebook</strong></small></button><br /><button class="btn btn-google btn-lg btn-block btn-v-center-content" id="login-google-oauth-button"><svg style="float: left; width: 22px; line-height: 1em; margin-right: .3em;" aria-hidden="true" focusable="false" data-prefix="fab" data-icon="google-plus" class="svg-inline--fa fa-google-plus fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M256,8C119.1,8,8,119.1,8,256S119.1,504,256,504,504,392.9,504,256,392.9,8,256,8ZM185.3,380a124,124,0,0,1,0-248c31.3,0,60.1,11,83,32.3l-33.6,32.6c-13.2-12.9-31.3-19.1-49.4-19.1-42.9,0-77.2,35.5-77.2,78.1S142.3,334,185.3,334c32.6,0,64.9-19.1,70.1-53.3H185.3V238.1H302.2a109.2,109.2,0,0,1,1.9,20.7c0,70.8-47.5,121.2-118.8,121.2ZM415.5,273.8v35.5H380V273.8H344.5V238.3H380V202.8h35.5v35.5h35.2v35.5Z"></path></svg><small><strong>Log in</strong> with <strong>Google</strong></small></button><br /><style type="text/css">.sign-in-with-apple-button { width: 100%; height: 52px; border-radius: 3px; border: 1px solid black; cursor: pointer; } .sign-in-with-apple-button > div { margin: 0 auto; / This centers the Apple-rendered button horizontally }</style><script src="https://appleid.cdn-apple.com/appleauth/static/jsapi/appleid/1/en_US/appleid.auth.js" type="text/javascript"></script><div class="sign-in-with-apple-button" data-border="false" data-color="white" id="appleid-signin"><span   ="Sign Up with Apple" class="u-fs11"></span></div><script>AppleID.auth.init({ clientId: 'edu.academia.applesignon', scope: 'name email', redirectURI: 'https://www.academia.edu/sessions', state: "2bf304fd9767d400f38c39ea2d0df943cc960ccd51779f7310a6a87fae85979d", });</script><script>// Hacky way of checking if on fast loswp if (window.loswp == null) { (function() { const Google = window?.Aedu?.Auth?.OauthButton?.Login?.Google; const Facebook = window?.Aedu?.Auth?.OauthButton?.Login?.Facebook; if (Google) { new Google({ el: '#login-google-oauth-button', rememberMeCheckboxId: 'remember_me', track: null }); } if (Facebook) { new Facebook({ el: '#login-facebook-oauth-button', rememberMeCheckboxId: 'remember_me', track: null }); } })(); }</script></div></div></div><div class="modal-body"><div class="row"><div class="col-xs-10 col-xs-offset-1"><div class="hr-heading login-hr-heading"><span class="hr-heading-text">or</span></div></div></div></div><div class="modal-body"><div class="row"><div class="col-xs-10 col-xs-offset-1"><form class="js-login-form" action="https://www.academia.edu/sessions" accept-charset="UTF-8" method="post"><input type="hidden" name="authenticity_token" value="iB-7bUAHcUJqABIADav8yaNkK574UeJyc6SS-lVjI_LOJZhFTH2tymo2QtCvBkpd4Kusyzu6ty8SPDcOEOtzfw" autocomplete="off" /><div class="form-group"><label class="control-label" for="login-modal-email-input" style="font-size: 14px;">Email</label><input class="form-control" id="login-modal-email-input" name="login" type="email" /></div><div class="form-group"><label class="control-label" for="login-modal-password-input" style="font-size: 14px;">Password</label><input class="form-control" id="login-modal-password-input" name="password" type="password" /></div><input type="hidden" name="post_login_redirect_url" id="post_login_redirect_url" value="https://www.academia.edu/Documents/in/Trilobita" autocomplete="off" /><div class="checkbox"><label><input type="checkbox" name="remember_me" id="remember_me" value="1" checked="checked" /><small style="font-size: 12px; margin-top: 2px; display: inline-block;">Remember me on this computer</small></label></div><br><input type="submit" name="commit" value="Log In" class="btn btn-primary btn-block btn-lg js-login-submit" data-disable-with="Log In" /></br></form><script>typeof window?.Aedu?.recaptchaManagedForm === 'function' && window.Aedu.recaptchaManagedForm( document.querySelector('.js-login-form'), document.querySelector('.js-login-submit') );</script><small style="font-size: 12px;"><br />or <a data-target="#login-modal-reset-password-container" data-toggle="collapse" href="javascript:void(0)">reset password</a></small><div class="collapse" id="login-modal-reset-password-container"><br /><div class="well margin-0x"><form class="js-password-reset-form" action="https://www.academia.edu/reset_password" accept-charset="UTF-8" method="post"><input type="hidden" name="authenticity_token" value="XkWndzoYqI2p63GvdAisrVVVxM5l5Wuyf4zRR2p_tFkYf4RfNmJ0BandIX_WpRo5FppDm6YOPu8eFHSzL_fk1A" autocomplete="off" /><p>Enter the email address you signed up with and we'll email you a reset link.</p><div class="form-group"><input class="form-control" name="email" type="email" /></div><script src="https://recaptcha.net/recaptcha/api.js" async defer></script> <script> var invisibleRecaptchaSubmit = function () { var closestForm = function (ele) { var curEle = ele.parentNode; while (curEle.nodeName !== 'FORM' && curEle.nodeName !== 'BODY'){ curEle = curEle.parentNode; } return curEle.nodeName === 'FORM' ? curEle : null }; var eles = document.getElementsByClassName('g-recaptcha'); if (eles.length > 0) { var form = closestForm(eles[0]); if (form) { form.submit(); } } }; </script> <input type="submit" data-sitekey="6Lf3KHUUAAAAACggoMpmGJdQDtiyrjVlvGJ6BbAj" data-callback="invisibleRecaptchaSubmit" class="g-recaptcha btn btn-primary btn-block" value="Email me a link" value=""/> </form></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/collapse-45805421cf446ca5adf7aaa1935b08a3a8d1d9a6cc5d91a62a2a3a00b20b3e6a.js"], function() { // from javascript_helper.rb $("#login-modal-reset-password-container").on("shown.bs.collapse", function() { $(this).find("input[type=email]").focus(); }); }); </script> </div></div></div><div class="modal-footer"><div class="text-center"><small style="font-size: 12px;">Need an account? <a rel="nofollow" href="https://www.academia.edu/signup">Click here to sign up</a></small></div></div></div></div></div></div><script>// If we are on subdomain or non-bootstrapped page, redirect to login page instead of showing modal (function(){ if (typeof $ === 'undefined') return; var host = window.location.hostname; if ((host === $domain || host === "www."+$domain) && (typeof $().modal === 'function')) { $("#nav_log_in").click(function(e) { // Don't follow the link and open the modal e.preventDefault(); $("#login-modal").on('shown.bs.modal', function() { $(this).find("#login-modal-email-input").focus() }).modal('show'); }); } })()</script> <div class="bootstrap" id="footer"><div class="footer-content clearfix text-center padding-top-7x" style="width:100%;"><ul class="footer-links-secondary footer-links-wide list-inline margin-bottom-1x"><li><a href="https://www.academia.edu/about">About</a></li><li><a href="https://www.academia.edu/press">Press</a></li><li><a href="https://www.academia.edu/documents">Papers</a></li><li><a href="https://www.academia.edu/topics">Topics</a></li><li><a href="https://www.academia.edu/journals">Academia.edu Journals</a></li><li><a rel="nofollow" href="https://www.academia.edu/hiring"><svg style="width: 13px; height: 13px;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="briefcase" class="svg-inline--fa fa-briefcase fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M320 336c0 8.84-7.16 16-16 16h-96c-8.84 0-16-7.16-16-16v-48H0v144c0 25.6 22.4 48 48 48h416c25.6 0 48-22.4 48-48V288H320v48zm144-208h-80V80c0-25.6-22.4-48-48-48H176c-25.6 0-48 22.4-48 48v48H48c-25.6 0-48 22.4-48 48v80h512v-80c0-25.6-22.4-48-48-48zm-144 0H192V96h128v32z"></path></svg> <strong>We're Hiring!</strong></a></li><li><a rel="nofollow" href="https://support.academia.edu/hc/en-us"><svg style="width: 12px; height: 12px;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="question-circle" class="svg-inline--fa fa-question-circle fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zM262.655 90c-54.497 0-89.255 22.957-116.549 63.758-3.536 5.286-2.353 12.415 2.715 16.258l34.699 26.31c5.205 3.947 12.621 3.008 16.665-2.122 17.864-22.658 30.113-35.797 57.303-35.797 20.429 0 45.698 13.148 45.698 32.958 0 14.976-12.363 22.667-32.534 33.976C247.128 238.528 216 254.941 216 296v4c0 6.627 5.373 12 12 12h56c6.627 0 12-5.373 12-12v-1.333c0-28.462 83.186-29.647 83.186-106.667 0-58.002-60.165-102-116.531-102zM256 338c-25.365 0-46 20.635-46 46 0 25.364 20.635 46 46 46s46-20.636 46-46c0-25.365-20.635-46-46-46z"></path></svg> <strong>Help Center</strong></a></li></ul><ul class="footer-links-tertiary list-inline margin-bottom-1x"><li class="small">Find new research papers in:</li><li class="small"><a href="https://www.academia.edu/Documents/in/Physics">Physics</a></li><li class="small"><a href="https://www.academia.edu/Documents/in/Chemistry">Chemistry</a></li><li class="small"><a href="https://www.academia.edu/Documents/in/Biology">Biology</a></li><li class="small"><a href="https://www.academia.edu/Documents/in/Health_Sciences">Health Sciences</a></li><li class="small"><a href="https://www.academia.edu/Documents/in/Ecology">Ecology</a></li><li class="small"><a href="https://www.academia.edu/Documents/in/Earth_Sciences">Earth Sciences</a></li><li class="small"><a href="https://www.academia.edu/Documents/in/Cognitive_Science">Cognitive Science</a></li><li class="small"><a href="https://www.academia.edu/Documents/in/Mathematics">Mathematics</a></li><li class="small"><a href="https://www.academia.edu/Documents/in/Computer_Science">Computer Science</a></li></ul></div></div><div class="DesignSystem" id="credit" style="width:100%;"><ul class="u-pl0x footer-links-legal list-inline"><li><a rel="nofollow" href="https://www.academia.edu/terms">Terms</a></li><li><a rel="nofollow" href="https://www.academia.edu/privacy">Privacy</a></li><li><a rel="nofollow" href="https://www.academia.edu/copyright">Copyright</a></li><li>Academia ©2025</li></ul></div><script> //<![CDATA[ window.detect_gmtoffset = true; window.Academia && window.Academia.set_gmtoffset && Academia.set_gmtoffset('/gmtoffset'); //]]> </script> <div id='overlay_background'></div> <div id='bootstrap-modal-container' class='bootstrap'></div> <div id='ds-modal-container' class='bootstrap DesignSystem'></div> <div id='full-screen-modal'></div> </div> </body> </html>