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Ryggsträngsdjur – Wikipedia
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<div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Webbplats"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Innehåll" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Innehåll</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">dölj</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inledning</div> </a> </li> <li id="toc-Utseende" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Utseende"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Utseende</span> </div> </a> <ul id="toc-Utseende-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Utbredning" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Utbredning"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Utbredning</span> </div> </a> <ul id="toc-Utbredning-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Ryggsträngsdjurens_indelning" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Ryggsträngsdjurens_indelning"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Ryggsträngsdjurens indelning</span> </div> </a> <button aria-controls="toc-Ryggsträngsdjurens_indelning-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Växla underavsnittet Ryggsträngsdjurens indelning</span> </button> <ul id="toc-Ryggsträngsdjurens_indelning-sublist" class="vector-toc-list"> <li id="toc-Systematik" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Systematik"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Systematik</span> </div> </a> <ul id="toc-Systematik-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Referenser" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referenser"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Referenser</span> </div> </a> <ul id="toc-Referenser-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Externa_länkar" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Externa_länkar"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Externa länkar</span> </div> </a> <ul id="toc-Externa_länkar-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innehåll" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Växla innehållsförteckningen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Växla innehållsförteckningen</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Ryggsträngsdjur</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå till en artikel på ett annat språk. Tillgänglig på 149 språk" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-149" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">149 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Rugkoorddiere" title="Rugkoorddiere – afrikaans" lang="af" hreflang="af" data-title="Rugkoorddiere" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Chordatiere" title="Chordatiere – schweizertyska" lang="gsw" hreflang="gsw" data-title="Chordatiere" data-language-autonym="Alemannisch" data-language-local-name="schweizertyska" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-am mw-list-item"><a href="https://am.wikipedia.org/wiki/%E1%8A%A0%E1%88%9D%E1%8B%B0%E1%88%B5%E1%8C%8C" title="አምደስጌ – amhariska" lang="am" hreflang="am" data-title="አምደስጌ" data-language-autonym="አማርኛ" data-language-local-name="amhariska" class="interlanguage-link-target"><span>አማርኛ</span></a></li><li class="interlanguage-link interwiki-smn mw-list-item"><a href="https://smn.wikipedia.org/wiki/Savosuon%C3%A2siih" title="Savosuonâsiih – enaresamiska" lang="smn" hreflang="smn" data-title="Savosuonâsiih" data-language-autonym="Anarâškielâ" data-language-local-name="enaresamiska" class="interlanguage-link-target"><span>Anarâškielâ</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AD%D8%A8%D9%84%D9%8A%D8%A7%D8%AA" title="حبليات – arabiska" lang="ar" hreflang="ar" data-title="حبليات" data-language-autonym="العربية" data-language-local-name="arabiska" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Chordata" title="Chordata – aragonesiska" lang="an" hreflang="an" data-title="Chordata" data-language-autonym="Aragonés" data-language-local-name="aragonesiska" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-frp mw-list-item"><a href="https://frp.wikipedia.org/wiki/Cord%C3%A2s" title="Cordâs – frankoprovensalska" lang="frp" hreflang="frp" data-title="Cordâs" data-language-autonym="Arpetan" data-language-local-name="frankoprovensalska" class="interlanguage-link-target"><span>Arpetan</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%95%27%E0%A7%B0%E0%A6%A1%E0%A6%BE%E0%A6%9F%E0%A6%BE" title="ক'ৰডাটা – assamesiska" lang="as" hreflang="as" data-title="ক'ৰডাটা" data-language-autonym="অসমীয়া" data-language-local-name="assamesiska" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Chordata" title="Chordata – asturiska" lang="ast" hreflang="ast" data-title="Chordata" data-language-autonym="Asturianu" data-language-local-name="asturiska" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-awa mw-list-item"><a href="https://awa.wikipedia.org/wiki/%E0%A4%95%E0%A4%B0%E0%A5%8D%E0%A4%A1%E0%A5%87%E0%A4%9F%E0%A4%BE" title="कर्डेटा – awadhi" lang="awa" hreflang="awa" data-title="कर्डेटा" data-language-autonym="अवधी" data-language-local-name="awadhi" class="interlanguage-link-target"><span>अवधी</span></a></li><li class="interlanguage-link interwiki-gn mw-list-item"><a href="https://gn.wikipedia.org/wiki/Mymba_s%C3%A3_atukup%C3%A9pe" title="Mymba sã atukupépe – guaraní" lang="gn" hreflang="gn" data-title="Mymba sã atukupépe" data-language-autonym="Avañe'ẽ" data-language-local-name="guaraní" class="interlanguage-link-target"><span>Avañe'ẽ</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Xordal%C4%B1lar" title="Xordalılar – azerbajdzjanska" lang="az" hreflang="az" data-title="Xordalılar" data-language-autonym="Azərbaycanca" data-language-local-name="azerbajdzjanska" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%AE%D9%88%D8%B1%D8%AF%D8%A7%D9%84%DB%8C%D9%84%D8%A7%D8%B1" title="خوردالیلار – South Azerbaijani" lang="azb" hreflang="azb" data-title="خوردالیلار" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-ban mw-list-item"><a href="https://ban.wikipedia.org/wiki/Chordata" title="Chordata – balinesiska" lang="ban" hreflang="ban" data-title="Chordata" data-language-autonym="Basa Bali" data-language-local-name="balinesiska" class="interlanguage-link-target"><span>Basa Bali</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%95%E0%A6%B0%E0%A7%8D%E0%A6%A1%E0%A6%BE%E0%A6%9F%E0%A6%BE" title="কর্ডাটা – bengali" lang="bn" hreflang="bn" data-title="কর্ডাটা" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Chek-soh_t%C5%8Dng-bu%CC%8Dt" title="Chek-soh tōng-bu̍t – min nan" lang="nan" hreflang="nan" data-title="Chek-soh tōng-bu̍t" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="min nan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%B0%D0%BB%D1%8B%D0%BB%D0%B0%D1%80" title="Хордалылар – basjkiriska" lang="ba" hreflang="ba" data-title="Хордалылар" data-language-autonym="Башҡортса" data-language-local-name="basjkiriska" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%B0%D0%B2%D1%8B%D1%8F" title="Хордавыя – belarusiska" lang="be" hreflang="be" data-title="Хордавыя" data-language-autonym="Беларуская" data-language-local-name="belarusiska" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%B0%D0%B2%D1%8B%D1%8F" title="Хордавыя – belarusiska (tarasjkevitsa)" lang="be-tarask" hreflang="be-tarask" data-title="Хордавыя" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="belarusiska (tarasjkevitsa)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%95%E0%A4%BE%E0%A4%B0%E0%A5%8D%E0%A4%A1%E0%A5%87%E0%A4%9F" title="कार्डेट – Bhojpuri" lang="bh" hreflang="bh" data-title="कार्डेट" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%BE%D0%B2%D0%B8" title="Хордови – bulgariska" lang="bg" hreflang="bg" data-title="Хордови" data-language-autonym="Български" data-language-local-name="bulgariska" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%A6%E0%BE%92%E0%BD%A3%E0%BC%8B%E0%BD%90%E0%BD%82%E0%BC%8B%E0%BD%A6%E0%BE%B2%E0%BD%BC%E0%BD%82%E0%BC%8B%E0%BD%86%E0%BD%82%E0%BD%A6%E0%BC%8B" title="སྒལ་ཐག་སྲོག་ཆགས་ – tibetanska" lang="bo" hreflang="bo" data-title="སྒལ་ཐག་སྲོག་ཆགས་" data-language-autonym="བོད་ཡིག" data-language-local-name="tibetanska" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Hordati" title="Hordati – bosniska" lang="bs" hreflang="bs" data-title="Hordati" data-language-autonym="Bosanski" data-language-local-name="bosniska" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Kordeg" title="Kordeg – bretonska" lang="br" hreflang="br" data-title="Kordeg" data-language-autonym="Brezhoneg" data-language-local-name="bretonska" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bxr mw-list-item"><a href="https://bxr.wikipedia.org/wiki/%D0%A5%D2%AF%D0%B1%D1%88%D1%8D%D1%82%D1%8D%D0%BD" title="Хүбшэтэн – Russia Buriat" lang="bxr" hreflang="bxr" data-title="Хүбшэтэн" data-language-autonym="Буряад" data-language-local-name="Russia Buriat" class="interlanguage-link-target"><span>Буряад</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Cordats" title="Cordats – katalanska" lang="ca" hreflang="ca" data-title="Cordats" data-language-autonym="Català" data-language-local-name="katalanska" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%A5%D0%B8%D1%80%D0%BB%D3%B3%D0%BB%D0%BB%D0%B8" title="Хирлӳлли – tjuvasjiska" lang="cv" hreflang="cv" data-title="Хирлӳлли" data-language-autonym="Чӑвашла" data-language-local-name="tjuvasjiska" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-ceb mw-list-item"><a href="https://ceb.wikipedia.org/wiki/Maybukobuko" title="Maybukobuko – cebuano" lang="ceb" hreflang="ceb" data-title="Maybukobuko" data-language-autonym="Cebuano" data-language-local-name="cebuano" class="interlanguage-link-target"><span>Cebuano</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Strunatci" title="Strunatci – tjeckiska" lang="cs" hreflang="cs" data-title="Strunatci" data-language-autonym="Čeština" data-language-local-name="tjeckiska" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Cordog" title="Cordog – walesiska" lang="cy" hreflang="cy" data-title="Cordog" data-language-autonym="Cymraeg" data-language-local-name="walesiska" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Chordater" title="Chordater – danska" lang="da" hreflang="da" data-title="Chordater" data-language-autonym="Dansk" data-language-local-name="danska" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D8%AD%D8%A8%D9%84%D9%8A%D8%A7%D8%AA" title="حبليات – marockansk arabiska" lang="ary" hreflang="ary" data-title="حبليات" data-language-autonym="الدارجة" data-language-local-name="marockansk arabiska" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Chordatiere" title="Chordatiere – tyska" lang="de" hreflang="de" data-title="Chordatiere" data-language-autonym="Deutsch" data-language-local-name="tyska" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-nv mw-list-item"><a href="https://nv.wikipedia.org/wiki/B%C3%AD%C3%ADgh%C4%85%CC%81%C4%85%CC%81sts%CA%BC%C7%AB%C7%ABd_Dah%C3%B3l%C3%B3n%C3%ADg%C3%AD%C3%AD" title="Bííghą́ą́stsʼǫǫd Dahólónígíí – navaho" lang="nv" hreflang="nv" data-title="Bííghą́ą́stsʼǫǫd Dahólónígíí" data-language-autonym="Diné bizaad" data-language-local-name="navaho" class="interlanguage-link-target"><span>Diné bizaad</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Keelikloomad" title="Keelikloomad – estniska" lang="et" hreflang="et" data-title="Keelikloomad" data-language-autonym="Eesti" data-language-local-name="estniska" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A7%CE%BF%CF%81%CE%B4%CF%89%CF%84%CE%AC" title="Χορδωτά – grekiska" lang="el" hreflang="el" data-title="Χορδωτά" data-language-autonym="Ελληνικά" data-language-local-name="grekiska" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Chordate" title="Chordate – engelska" lang="en" hreflang="en" data-title="Chordate" data-language-autonym="English" data-language-local-name="engelska" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Chordata" title="Chordata – spanska" lang="es" hreflang="es" data-title="Chordata" data-language-autonym="Español" data-language-local-name="spanska" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/%C4%A4orduloj" title="Ĥorduloj – esperanto" lang="eo" hreflang="eo" data-title="Ĥorduloj" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-ext mw-list-item"><a href="https://ext.wikipedia.org/wiki/Chordata" title="Chordata – extremaduriska" lang="ext" hreflang="ext" data-title="Chordata" data-language-autonym="Estremeñu" data-language-local-name="extremaduriska" class="interlanguage-link-target"><span>Estremeñu</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Kordatu" title="Kordatu – baskiska" lang="eu" hreflang="eu" data-title="Kordatu" data-language-autonym="Euskara" data-language-local-name="baskiska" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B7%D9%86%D8%A7%D8%A8%D8%AF%D8%A7%D8%B1%D8%A7%D9%86" title="طنابداران – persiska" lang="fa" hreflang="fa" data-title="طنابداران" data-language-autonym="فارسی" data-language-local-name="persiska" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-hif mw-list-item"><a href="https://hif.wikipedia.org/wiki/Chordata" title="Chordata – Fiji-hindi" lang="hif" hreflang="hif" data-title="Chordata" data-language-autonym="Fiji Hindi" data-language-local-name="Fiji-hindi" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-fo mw-list-item"><a href="https://fo.wikipedia.org/wiki/Chordata" title="Chordata – färöiska" lang="fo" hreflang="fo" data-title="Chordata" data-language-autonym="Føroyskt" data-language-local-name="färöiska" class="interlanguage-link-target"><span>Føroyskt</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Chordata" title="Chordata – franska" lang="fr" hreflang="fr" data-title="Chordata" data-language-autonym="Français" data-language-local-name="franska" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/R%C3%AAchstringdieren" title="Rêchstringdieren – västfrisiska" lang="fy" hreflang="fy" data-title="Rêchstringdieren" data-language-autonym="Frysk" data-language-local-name="västfrisiska" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Chordata" title="Chordata – iriska" lang="ga" hreflang="ga" data-title="Chordata" data-language-autonym="Gaeilge" data-language-local-name="iriska" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gv mw-list-item"><a href="https://gv.wikipedia.org/wiki/Chordata" title="Chordata – manx" lang="gv" hreflang="gv" data-title="Chordata" data-language-autonym="Gaelg" data-language-local-name="manx" class="interlanguage-link-target"><span>Gaelg</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Chordata" title="Chordata – skotsk gäliska" lang="gd" hreflang="gd" data-title="Chordata" data-language-autonym="Gàidhlig" data-language-local-name="skotsk gäliska" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Cordados" title="Cordados – galiciska" lang="gl" hreflang="gl" data-title="Cordados" data-language-autonym="Galego" data-language-local-name="galiciska" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-inh mw-list-item"><a href="https://inh.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%B0" title="Хорда – ingusjiska" lang="inh" hreflang="inh" data-title="Хорда" data-language-autonym="ГӀалгӀай" data-language-local-name="ingusjiska" class="interlanguage-link-target"><span>ГӀалгӀай</span></a></li><li class="interlanguage-link interwiki-hak mw-list-item"><a href="https://hak.wikipedia.org/wiki/Chit-sok_thung-vu%CC%8Dt" title="Chit-sok thung-vu̍t – hakka" lang="hak" hreflang="hak" data-title="Chit-sok thung-vu̍t" data-language-autonym="客家語 / Hak-kâ-ngî" data-language-local-name="hakka" class="interlanguage-link-target"><span>客家語 / Hak-kâ-ngî</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%B2%99%EC%82%AD%EB%8F%99%EB%AC%BC" title="척삭동물 – koreanska" lang="ko" hreflang="ko" data-title="척삭동물" data-language-autonym="한국어" data-language-local-name="koreanska" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%94%D5%B8%D6%80%D5%A4%D5%A1%D5%BE%D5%B8%D6%80%D5%B6%D5%A5%D6%80" title="Քորդավորներ – armeniska" lang="hy" hreflang="hy" data-title="Քորդավորներ" data-language-autonym="Հայերեն" data-language-local-name="armeniska" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B0%E0%A4%9C%E0%A5%8D%E0%A4%9C%E0%A5%81%E0%A4%95%E0%A5%80" title="रज्जुकी – hindi" lang="hi" hreflang="hi" data-title="रज्जुकी" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Svitkovci" title="Svitkovci – kroatiska" lang="hr" hreflang="hr" data-title="Svitkovci" data-language-autonym="Hrvatski" data-language-local-name="kroatiska" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ilo mw-list-item"><a href="https://ilo.wikipedia.org/wiki/Chordata" title="Chordata – iloko" lang="ilo" hreflang="ilo" data-title="Chordata" data-language-autonym="Ilokano" data-language-local-name="iloko" class="interlanguage-link-target"><span>Ilokano</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Chordata" title="Chordata – indonesiska" lang="id" hreflang="id" data-title="Chordata" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiska" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Chordato" title="Chordato – interlingua" lang="ia" hreflang="ia" data-title="Chordato" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-os mw-list-item"><a href="https://os.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%C3%A6%D0%B4%D0%B6%D1%8B%D0%BD%D1%82%C3%A6" title="Хордæджынтæ – ossetiska" lang="os" hreflang="os" data-title="Хордæджынтæ" data-language-autonym="Ирон" data-language-local-name="ossetiska" class="interlanguage-link-target"><span>Ирон</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Seild%C3%BDr" title="Seildýr – isländska" lang="is" hreflang="is" data-title="Seildýr" data-language-autonym="Íslenska" data-language-local-name="isländska" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Chordata" title="Chordata – italienska" lang="it" hreflang="it" data-title="Chordata" data-language-autonym="Italiano" data-language-local-name="italienska" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%99%D7%AA%D7%A8%D7%A0%D7%99%D7%99%D7%9D" title="מיתרניים – hebreiska" lang="he" hreflang="he" data-title="מיתרניים" data-language-autonym="עברית" data-language-local-name="hebreiska" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Chordata" title="Chordata – javanesiska" lang="jv" hreflang="jv" data-title="Chordata" data-language-autonym="Jawa" data-language-local-name="javanesiska" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%95%E0%B2%BE%E0%B2%B0%E0%B3%8D%E0%B2%A1%E0%B3%87%E0%B2%9F%E0%B3%8D" title="ಕಾರ್ಡೇಟ್ – kannada" lang="kn" hreflang="kn" data-title="ಕಾರ್ಡೇಟ್" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A5%E1%83%9D%E1%83%A0%E1%83%93%E1%83%98%E1%83%90%E1%83%9C%E1%83%94%E1%83%91%E1%83%98" title="ქორდიანები – georgiska" lang="ka" hreflang="ka" data-title="ქორდიანები" data-language-autonym="ქართული" data-language-local-name="georgiska" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%B0%D0%BB%D1%8B%D0%BB%D0%B0%D1%80" title="Хордалылар – kazakiska" lang="kk" hreflang="kk" data-title="Хордалылар" data-language-autonym="Қазақша" data-language-local-name="kazakiska" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Chordata" title="Chordata – korniska" lang="kw" hreflang="kw" data-title="Chordata" data-language-autonym="Kernowek" data-language-local-name="korniska" class="interlanguage-link-target"><span>Kernowek</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Kodata" title="Kodata – swahili" lang="sw" hreflang="sw" data-title="Kodata" data-language-autonym="Kiswahili" data-language-local-name="swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/K%C3%B2de" title="Kòde – haitiska" lang="ht" hreflang="ht" data-title="Kòde" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haitiska" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/St%C3%BBnpi%C5%9Ftdar_(fil%C3%BBm)" title="Stûnpiştdar (filûm) – kurdiska" lang="ku" hreflang="ku" data-title="Stûnpiştdar (filûm)" data-language-autonym="Kurdî" data-language-local-name="kurdiska" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%B0%D0%BB%D1%83%D1%83" title="Хордалуу – kirgiziska" lang="ky" hreflang="ky" data-title="Хордалуу" data-language-autonym="Кыргызча" data-language-local-name="kirgiziska" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Chordata" title="Chordata – latin" lang="la" hreflang="la" data-title="Chordata" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Hordai%C5%86i" title="Hordaiņi – lettiska" lang="lv" hreflang="lv" data-title="Hordaiņi" data-language-autonym="Latviešu" data-language-local-name="lettiska" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Chordad%C3%A9ieren" title="Chordadéieren – luxemburgiska" lang="lb" hreflang="lb" data-title="Chordadéieren" data-language-autonym="Lëtzebuergesch" data-language-local-name="luxemburgiska" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Chordiniai" title="Chordiniai – litauiska" lang="lt" hreflang="lt" data-title="Chordiniai" data-language-autonym="Lietuvių" data-language-local-name="litauiska" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lij mw-list-item"><a href="https://lij.wikipedia.org/wiki/Chordata" title="Chordata – liguriska" lang="lij" hreflang="lij" data-title="Chordata" data-language-autonym="Ligure" data-language-local-name="liguriska" class="interlanguage-link-target"><span>Ligure</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Chordabieste" title="Chordabieste – limburgiska" lang="li" hreflang="li" data-title="Chordabieste" data-language-autonym="Limburgs" data-language-local-name="limburgiska" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lfn mw-list-item"><a href="https://lfn.wikipedia.org/wiki/Cordato" title="Cordato – lingua franca nova" lang="lfn" hreflang="lfn" data-title="Cordato" data-language-autonym="Lingua Franca Nova" data-language-local-name="lingua franca nova" class="interlanguage-link-target"><span>Lingua Franca Nova</span></a></li><li class="interlanguage-link interwiki-jbo mw-list-item"><a href="https://jbo.wikipedia.org/wiki/skoselti%27e" title="skoselti'e – lojban" lang="jbo" hreflang="jbo" data-title="skoselti'e" data-language-autonym="La .lojban." data-language-local-name="lojban" class="interlanguage-link-target"><span>La .lojban.</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Gerinch%C3%BArosok" title="Gerinchúrosok – ungerska" lang="hu" hreflang="hu" data-title="Gerinchúrosok" data-language-autonym="Magyar" data-language-local-name="ungerska" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%BE%D0%B2%D0%B8" title="Хордови – makedonska" lang="mk" hreflang="mk" data-title="Хордови" data-language-autonym="Македонски" data-language-local-name="makedonska" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%95%E0%B5%8B%E0%B5%BC%E0%B4%A1%E0%B5%87%E0%B4%B1%E0%B5%8D%E0%B4%B1" title="കോർഡേറ്റ – malayalam" lang="ml" hreflang="ml" data-title="കോർഡേറ്റ" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mt mw-list-item"><a href="https://mt.wikipedia.org/wiki/Chordata" title="Chordata – maltesiska" lang="mt" hreflang="mt" data-title="Chordata" data-language-autonym="Malti" data-language-local-name="maltesiska" class="interlanguage-link-target"><span>Malti</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%95%E0%A4%A3%E0%A4%BE%E0%A4%A7%E0%A4%BE%E0%A4%B0%E0%A5%80_%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%BE%E0%A4%A3%E0%A5%80" title="कणाधारी प्राणी – marathi" lang="mr" hreflang="mr" data-title="कणाधारी प्राणी" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%A5%E1%83%9D%E1%83%A0%E1%83%93%E1%83%98%E1%83%90%E1%83%9C%E1%83%94%E1%83%A4%E1%83%98" title="ქორდიანეფი – mingrelianska" lang="xmf" hreflang="xmf" data-title="ქორდიანეფი" data-language-autonym="მარგალური" data-language-local-name="mingrelianska" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%AD%D8%A8%D9%84%D9%8A%D8%A7%D8%AA" title="حبليات – egyptisk arabiska" lang="arz" hreflang="arz" data-title="حبليات" data-language-autonym="مصرى" data-language-local-name="egyptisk arabiska" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-mzn mw-list-item"><a href="https://mzn.wikipedia.org/wiki/%D8%B1%D8%B3%D9%86%E2%80%8C%D8%AF%D8%A7%D8%B1%D9%88%D9%86" title="رسندارون – mazanderani" lang="mzn" hreflang="mzn" data-title="رسندارون" data-language-autonym="مازِرونی" data-language-local-name="mazanderani" class="interlanguage-link-target"><span>مازِرونی</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Kordat" title="Kordat – malajiska" lang="ms" hreflang="ms" data-title="Kordat" data-language-autonym="Bahasa Melayu" data-language-local-name="malajiska" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mni mw-list-item"><a href="https://mni.wikipedia.org/wiki/%EA%AF%80%EA%AF%A3%EA%AF%94%EA%AF%97%EA%AF%A5%EA%AF%87%EA%AF%A5" title="ꯀꯣꯔꯗꯥꯇꯥ – manipuri" lang="mni" hreflang="mni" data-title="ꯀꯣꯔꯗꯥꯇꯥ" data-language-autonym="ꯃꯤꯇꯩ ꯂꯣꯟ" data-language-local-name="manipuri" class="interlanguage-link-target"><span>ꯃꯤꯇꯩ ꯂꯣꯟ</span></a></li><li class="interlanguage-link interwiki-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/C%C3%A9k-s%C3%B3%CC%A4h_d%C3%B4ng-%C5%ADk" title="Cék-só̤h dông-ŭk – Mindong" lang="cdo" hreflang="cdo" data-title="Cék-só̤h dông-ŭk" data-language-autonym="閩東語 / Mìng-dĕ̤ng-ngṳ̄" data-language-local-name="Mindong" class="interlanguage-link-target"><span>閩東語 / Mìng-dĕ̤ng-ngṳ̄</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A5%D3%A9%D0%B2%D1%87%D1%82%D3%A9%D0%BD" title="Хөвчтөн – mongoliska" lang="mn" hreflang="mn" data-title="Хөвчтөн" data-language-autonym="Монгол" data-language-local-name="mongoliska" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%80%E1%80%B1%E1%80%AC%E1%80%BA%E1%80%92%E1%80%AD%E1%80%90%E1%80%BA" title="ကော်ဒိတ် – burmesiska" lang="my" hreflang="my" data-title="ကော်ဒိတ်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="burmesiska" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Chordadieren" title="Chordadieren – nederländska" lang="nl" hreflang="nl" data-title="Chordadieren" data-language-autonym="Nederlands" data-language-local-name="nederländska" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E8%84%8A%E7%B4%A2%E5%8B%95%E7%89%A9" title="脊索動物 – japanska" lang="ja" hreflang="ja" data-title="脊索動物" data-language-autonym="日本語" data-language-local-name="japanska" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Ragstringdiarten" title="Ragstringdiarten – nordfrisiska" lang="frr" hreflang="frr" data-title="Ragstringdiarten" data-language-autonym="Nordfriisk" data-language-local-name="nordfrisiska" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Ryggstrengdyr" title="Ryggstrengdyr – norskt bokmål" lang="nb" hreflang="nb" data-title="Ryggstrengdyr" data-language-autonym="Norsk bokmål" data-language-local-name="norskt bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Ryggstrengdyr" title="Ryggstrengdyr – nynorska" lang="nn" hreflang="nn" data-title="Ryggstrengdyr" data-language-autonym="Norsk nynorsk" data-language-local-name="nynorska" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-nov mw-list-item"><a href="https://nov.wikipedia.org/wiki/Chordata" title="Chordata – novial" lang="nov" hreflang="nov" data-title="Chordata" data-language-autonym="Novial" data-language-local-name="novial" class="interlanguage-link-target"><span>Novial</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Chordata" title="Chordata – occitanska" lang="oc" hreflang="oc" data-title="Chordata" data-language-autonym="Occitan" data-language-local-name="occitanska" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Tushaaleeyyii" title="Tushaaleeyyii – oromo" lang="om" hreflang="om" data-title="Tushaaleeyyii" data-language-autonym="Oromoo" data-language-local-name="oromo" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Xordalilar" title="Xordalilar – uzbekiska" lang="uz" hreflang="uz" data-title="Xordalilar" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbekiska" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%A4%E0%A9%B0%E0%A8%A6%E0%A8%A7%E0%A8%BE%E0%A8%B0%E0%A9%80" title="ਤੰਦਧਾਰੀ – punjabi" lang="pa" hreflang="pa" data-title="ਤੰਦਧਾਰੀ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%DA%A9%D9%88%D8%B1%DA%88%DB%8C%D9%B9" title="کورڈیٹ – Western Punjabi" lang="pnb" hreflang="pnb" data-title="کورڈیٹ" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-koi mw-list-item"><a href="https://koi.wikipedia.org/wiki/%D0%9C%D1%8B%D1%88%D0%BA%D1%81%C3%B6%D0%BD%D0%B0%D1%8D%D0%B7" title="Мышксöнаэз – komi-permjakiska" lang="koi" hreflang="koi" data-title="Мышксöнаэз" data-language-autonym="Перем коми" data-language-local-name="komi-permjakiska" class="interlanguage-link-target"><span>Перем коми</span></a></li><li class="interlanguage-link interwiki-pcd mw-list-item"><a href="https://pcd.wikipedia.org/wiki/Chordata" title="Chordata – pikardiska" lang="pcd" hreflang="pcd" data-title="Chordata" data-language-autonym="Picard" data-language-local-name="pikardiska" class="interlanguage-link-target"><span>Picard</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Chordata" title="Chordata – piemontesiska" lang="pms" hreflang="pms" data-title="Chordata" data-language-autonym="Piemontèis" data-language-local-name="piemontesiska" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Ruggensnarendeerter" title="Ruggensnarendeerter – lågtyska" lang="nds" hreflang="nds" data-title="Ruggensnarendeerter" data-language-autonym="Plattdüütsch" data-language-local-name="lågtyska" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Strunowce" title="Strunowce – polska" lang="pl" hreflang="pl" data-title="Strunowce" data-language-autonym="Polski" data-language-local-name="polska" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Cordados" title="Cordados – portugisiska" lang="pt" hreflang="pt" data-title="Cordados" data-language-autonym="Português" data-language-local-name="portugisiska" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Cordate" title="Cordate – rumänska" lang="ro" hreflang="ro" data-title="Cordate" data-language-autonym="Română" data-language-local-name="rumänska" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Wasa_tiwlliyuq" title="Wasa tiwlliyuq – quechua" lang="qu" hreflang="qu" data-title="Wasa tiwlliyuq" data-language-autonym="Runa Simi" data-language-local-name="quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%BE%D0%B2%D1%8B" title="Хордовы – rusyn" lang="rue" hreflang="rue" data-title="Хордовы" data-language-autonym="Русиньскый" data-language-local-name="rusyn" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%BE%D0%B2%D1%8B%D0%B5" title="Хордовые – ryska" lang="ru" hreflang="ru" data-title="Хордовые" data-language-autonym="Русский" data-language-local-name="ryska" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%B0%D0%BB%D1%8B%D0%BA%D1%82%D0%B0%D1%80" title="Хордалыктар – jakutiska" lang="sah" hreflang="sah" data-title="Хордалыктар" data-language-autonym="Саха тыла" data-language-local-name="jakutiska" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Chordate" title="Chordate – skotska" lang="sco" hreflang="sco" data-title="Chordate" data-language-autonym="Scots" data-language-local-name="skotska" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/%C3%87ordat%C3%ABt" title="Çordatët – albanska" lang="sq" hreflang="sq" data-title="Çordatët" data-language-autonym="Shqip" data-language-local-name="albanska" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Chordata" title="Chordata – sicilianska" lang="scn" hreflang="scn" data-title="Chordata" data-language-autonym="Sicilianu" data-language-local-name="sicilianska" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B7%83%E0%B6%BB%E0%B6%A2%E0%B7%8A%E0%B6%A2%E0%B7%94%E0%B6%9A" title="සරජ්ජුක – singalesiska" lang="si" hreflang="si" data-title="සරජ්ජුක" data-language-autonym="සිංහල" data-language-local-name="singalesiska" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Chordate" title="Chordate – Simple English" lang="en-simple" hreflang="en-simple" data-title="Chordate" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%DA%AA%D9%88%D8%B1%DA%8A%D9%8A%D9%BD%D8%A7" title="ڪورڊيٽا – sindhi" lang="sd" hreflang="sd" data-title="ڪورڊيٽا" data-language-autonym="سنڌي" data-language-local-name="sindhi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Chord%C3%A1ty" title="Chordáty – slovakiska" lang="sk" hreflang="sk" data-title="Chordáty" data-language-autonym="Slovenčina" data-language-local-name="slovakiska" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Strunarji" title="Strunarji – slovenska" lang="sl" hreflang="sl" data-title="Strunarji" data-language-autonym="Slovenščina" data-language-local-name="slovenska" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D9%85%D8%A7%D8%B2%DB%95%D8%AF%D8%A7%D8%B1%D8%A7%D9%86" title="مازەداران – centralkurdiska" lang="ckb" hreflang="ckb" data-title="مازەداران" data-language-autonym="کوردی" data-language-local-name="centralkurdiska" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%B0%D1%82%D0%B8" title="Хордати – serbiska" lang="sr" hreflang="sr" data-title="Хордати" data-language-autonym="Српски / srpski" data-language-local-name="serbiska" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Svitkovci" title="Svitkovci – serbokroatiska" lang="sh" hreflang="sh" data-title="Svitkovci" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatiska" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Chordata" title="Chordata – sundanesiska" lang="su" hreflang="su" data-title="Chordata" data-language-autonym="Sunda" data-language-local-name="sundanesiska" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Selk%C3%A4j%C3%A4nteiset" title="Selkäjänteiset – finska" lang="fi" hreflang="fi" data-title="Selkäjänteiset" data-language-autonym="Suomi" data-language-local-name="finska" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Chordata" title="Chordata – tagalog" lang="tl" hreflang="tl" data-title="Chordata" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%AE%E0%AF%81%E0%AE%A4%E0%AF%81%E0%AE%95%E0%AF%81%E0%AE%A8%E0%AE%BE%E0%AE%A3%E0%AE%BF" title="முதுகுநாணி – tamil" lang="ta" hreflang="ta" data-title="முதுகுநாணி" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Timzikrin" title="Timzikrin – kabyliska" lang="kab" hreflang="kab" data-title="Timzikrin" data-language-autonym="Taqbaylit" data-language-local-name="kabyliska" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%B0%D0%BB%D1%8B%D0%BB%D0%B0%D1%80" title="Хордалылар – tatariska" lang="tt" hreflang="tt" data-title="Хордалылар" data-language-autonym="Татарча / tatarça" data-language-local-name="tatariska" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%95%E0%B0%BE%E0%B0%B0%E0%B1%8D%E0%B0%A1%E0%B1%87%E0%B0%9F%E0%B0%BE" title="కార్డేటా – telugu" lang="te" hreflang="te" data-title="కార్డేటా" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AA%E0%B8%B1%E0%B8%95%E0%B8%A7%E0%B9%8C%E0%B8%A1%E0%B8%B5%E0%B9%81%E0%B8%81%E0%B8%99%E0%B8%AA%E0%B8%B1%E0%B8%99%E0%B8%AB%E0%B8%A5%E0%B8%B1%E0%B8%87" title="สัตว์มีแกนสันหลัง – thailändska" lang="th" hreflang="th" data-title="สัตว์มีแกนสันหลัง" data-language-autonym="ไทย" data-language-local-name="thailändska" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D0%A2%D0%B0%D0%BD%D0%BE%D0%B1%D0%B4%D0%BE%D1%80%D0%BE%D0%BD" title="Танобдорон – tadzjikiska" lang="tg" hreflang="tg" data-title="Танобдорон" data-language-autonym="Тоҷикӣ" data-language-local-name="tadzjikiska" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-to mw-list-item"><a href="https://to.wikipedia.org/wiki/Monumanu_filo_siliva" title="Monumanu filo siliva – tonganska" lang="to" hreflang="to" data-title="Monumanu filo siliva" data-language-autonym="Lea faka-Tonga" data-language-local-name="tonganska" class="interlanguage-link-target"><span>Lea faka-Tonga</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Kordal%C4%B1lar" title="Kordalılar – turkiska" lang="tr" hreflang="tr" data-title="Kordalılar" data-language-autonym="Türkçe" data-language-local-name="turkiska" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A5%D0%BE%D1%80%D0%B4%D0%BE%D0%B2%D1%96" title="Хордові – ukrainska" lang="uk" hreflang="uk" data-title="Хордові" data-language-autonym="Українська" data-language-local-name="ukrainska" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%AD%D8%A8%D9%84%DB%8C%D8%A7%D8%AA" title="حبلیات – urdu" lang="ur" hreflang="ur" data-title="حبلیات" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-za mw-list-item"><a href="https://za.wikipedia.org/wiki/Doenghduz_ndoencag" title="Doenghduz ndoencag – zhuang" lang="za" hreflang="za" data-title="Doenghduz ndoencag" data-language-autonym="Vahcuengh" data-language-local-name="zhuang" class="interlanguage-link-target"><span>Vahcuengh</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%90%E1%BB%99ng_v%E1%BA%ADt_c%C3%B3_d%C3%A2y_s%E1%BB%91ng" title="Động vật có dây sống – vietnamesiska" lang="vi" hreflang="vi" data-title="Động vật có dây sống" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesiska" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-vls mw-list-item"><a href="https://vls.wikipedia.org/wiki/Chordab%C3%AAestn" title="Chordabêestn – västflamländska" lang="vls" hreflang="vls" data-title="Chordabêestn" data-language-autonym="West-Vlams" data-language-local-name="västflamländska" class="interlanguage-link-target"><span>West-Vlams</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Chordata" title="Chordata – waray" lang="war" hreflang="war" data-title="Chordata" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E8%84%8A%E7%B4%A2%E5%8A%A8%E7%89%A9" title="脊索动物 – wu" lang="wuu" hreflang="wuu" data-title="脊索动物" data-language-autonym="吴语" data-language-local-name="wu" 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1em;padding:.2em;float:right;clear:right;width:22em;text-align:left;font-size:88%;line-height:1.6em}.mw-parser-output .infobox td,.mw-parser-output .infobox th{vertical-align:top;padding:0 .2em}.mw-parser-output .infobox caption{font-size:larger}.mw-parser-output .infobox.bordered{border-collapse:collapse}.mw-parser-output .infobox.bordered td,.mw-parser-output .infobox.bordered th{border:1px solid #aaa}.mw-parser-output .infobox.bordered .borderless td,.mw-parser-output .infobox.bordered .borderless th{border:0}.mw-parser-output .infobox-showbutton button,.mw-parser-output .infobox-showbutton .mw-collapsible-text{color:inherit}.mw-parser-output .infobox.bordered .mergedtoprow td,.mw-parser-output .infobox.bordered .mergedtoprow th{border:0;border-top:1px solid #aaa;border-right:1px solid #aaa}.mw-parser-output .infobox.bordered .mergedrow td,.mw-parser-output .infobox.bordered .mergedrow th{border:0;border-right:1px solid #aaa}.mw-parser-output .infobox.geography{border:1px solid #ccd2d9;text-align:left;border-collapse:collapse;line-height:1.2em;font-size:90%}.mw-parser-output .infobox.geography td,.mw-parser-output .infobox.geography th{border-top:solid 1px #ccd2d9;padding:0.4em 0.6em 0.4em 0.6em}.mw-parser-output .infobox.geography .mergedtoprow td,.mw-parser-output .infobox.geography .mergedtoprow th{border-top:solid 1px #ccd2d9;padding:0.4em 0.6em 0.2em 0.6em}.mw-parser-output .infobox.geography .mergedrow td,.mw-parser-output .infobox.geography .mergedrow th{border:0;padding:0 0.6em 0.2em 0.6em}.mw-parser-output .infobox.geography .mergedbottomrow td,.mw-parser-output .infobox.geography .mergedbottomrow th{border-top:0;border-bottom:solid 1px #ccd2d9;padding:0 0.6em 0.4em 0.6em}.mw-parser-output .infobox.geography .maptable td,.mw-parser-output .infobox.geography .maptable th{border:0;padding:0}</style><table class="infobox" style="border-spacing:3px; font-size:95%;width:20.3788em;padding:.18em;"><tbody><tr><td colspan="2" class="" style="padding:2px; text-align:center; font-size: 125%; font-weight: bold; background:pink">Ryggsträngsdjur</td></tr><tr><td colspan="2" class="" style="text-align:center;"> <span typeof="mw:File"><a href="/wiki/Fil:Branchiostoma_lanceolatum.jpg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Branchiostoma_lanceolatum.jpg/250px-Branchiostoma_lanceolatum.jpg" decoding="async" width="250" height="198" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Branchiostoma_lanceolatum.jpg/375px-Branchiostoma_lanceolatum.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/Branchiostoma_lanceolatum.jpg/500px-Branchiostoma_lanceolatum.jpg 2x" data-file-width="1024" data-file-height="811" /></a></span> <div style=""><a href="/wiki/Lansettfisk" title="Lansettfisk">lansettfisk</a> (<i>Branchiostoma lanceolatum</i>)</div></td></tr><tr><th colspan="2" style="text-align:center;background:pink"><a href="/wiki/Systematik_(biologi)" title="Systematik (biologi)">Systematik</a></th></tr><tr><th style="text-align:left;"><a href="/wiki/Dom%C3%A4n_(biologi)" title="Domän (biologi)">Domän</a></th><td class="" style=""><a href="/wiki/Eukaryoter" title="Eukaryoter">Eukaryoter</a><br />Eukaryota</td></tr><tr><th style="text-align:left;"><a href="/wiki/Rike_(biologi)" title="Rike (biologi)">Rike</a></th><td class="" style=""><a href="/wiki/Djur" title="Djur">Djur</a><br />Animalia</td></tr><tr><th style="text-align:left;"><a href="/wiki/Underrike" class="mw-redirect" title="Underrike">Underrike</a></th><td class="" style=""><a href="/wiki/Eumetazoa" title="Eumetazoa">Eumetazoa</a></td></tr><tr><th style="text-align:left;">(orankad)</th><td class="" style=""><a href="/wiki/Bilateria" class="mw-redirect" title="Bilateria">Bilateria</a></td></tr><tr><th style="text-align:left;"><a href="/wiki/%C3%96verstam" class="mw-redirect" title="Överstam">Överstam</a></th><td class="" style=""><a href="/wiki/Deuterostomia" class="mw-redirect" title="Deuterostomia">Deuterostomia</a></td></tr><tr><th style="text-align:left;"><a href="/wiki/Fylum" title="Fylum">Stam</a></th><td class="" style=""><b>Ryggsträngsdjur</b><br />Chordata</td></tr><tr><th colspan="2" style="text-align:center;background:pink"><a href="/wiki/Vetenskapligt_namn" title="Vetenskapligt namn">Vetenskapligt namn</a></th></tr><tr><td colspan="2" class="" style="text-align:center;"><span style="float:right; font-size:70%;"><a href="https://species.wikimedia.org/wiki/Chordata" class="extiw" title="wikispecies:Chordata">§</a></span> Chordata</td></tr><tr><th style="text-align:left;"><a href="/wiki/Auktorsnamn" title="Auktorsnamn">Auktor</a></th><td class="" style=""><a href="/wiki/William_Bateson" title="William Bateson">Bateson</a>, 1885</td></tr><tr><th colspan="2" style="text-align:center;background:pink"><a href="/wiki/Understam" title="Understam">Understammar</a></th></tr><tr><td colspan="2" class="" style="text-align:center;"><span></span> <ul><li><a href="/wiki/Lansettfiskar" title="Lansettfiskar">Lansettfiskar</a> (Cephalochordata)</li> <li><a href="/wiki/Manteldjur" title="Manteldjur">Manteldjur</a> (Tunicata)</li> <li><a href="/wiki/Ryggradsdjur" title="Ryggradsdjur">Ryggradsdjur</a> (Vertebrata)</li></ul></td></tr><tr><td colspan="2" style="text-align:center; background:pink" class=""><small>Hitta fler artiklar om djur med </small><div style="font-size:1.1em"><b><a href="/wiki/Portal:Djur" title="Portal:Djur">Djurportalen</a></b></div></td></tr> </tbody></table> <p><b>Ryggsträngsdjur</b> eller <b>kordater</b> (Chordata) är en <a href="/wiki/Stam_(biologi)" class="mw-redirect" title="Stam (biologi)">djurstam</a> som innefattar <a href="/wiki/Ryggradsdjur" title="Ryggradsdjur">ryggradsdjuren</a>, <a href="/wiki/Manteldjur" title="Manteldjur">manteldjuren</a> och <a href="/wiki/Lansettfiskar" title="Lansettfiskar">lansettfiskarna</a>. Gemensamt för alla ryggsträngsdjur är att de åtminstone under någon period av sitt leverne får ryggen förstärkt av en <a href="/wiki/Ryggstr%C3%A4ng" title="Ryggsträng">ryggsträng</a>, samt ett nervrör som går utefter ryggsidan. Hos människan motsvaras nervröret av <a href="/wiki/Ryggm%C3%A4rg" title="Ryggmärg">ryggmärgen</a>. </p><p>Ryggsträngsdjuren utvecklades under den <a href="/wiki/Kambriska_explosionen" title="Kambriska explosionen">kambriska explosionen</a>. Närmast besläktade grupper är <a href="/wiki/Tagghudingar" title="Tagghudingar">tagghudingar</a> och <a href="/wiki/Svalgstr%C3%A4ngsdjur" title="Svalgsträngsdjur">svalgsträngsdjur</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Utseende">Utseende</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&veaction=edit&section=1" title="Redigera avsnitt: Utseende" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&action=edit&section=1" title="Redigera avsnitts källkod: Utseende"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ryggsträngsdjurens <a href="/wiki/Ryggstr%C3%A4ng" title="Ryggsträng">ryggsträng</a> är oftast helt utvecklad, men de mer basala grupperna saknar det skyddande kalkhölje som en <a href="/wiki/Ryggrad" title="Ryggrad">ryggrad</a> utgör hos ryggradsdjuren. Gemensamt för alla ryggsträngsdjur är att de under åtminstone någon del av sitt liv har en ryggsträng som förstärkning utefter ryggen. Ryggsträngen ger kroppen böjlighet och stadga.<sup id="cite_ref-nn_1-0" class="reference"><a href="#cite_note-nn-1"><span class="cite-reference-link-bracket">[</span>1<span class="cite-reference-link-bracket">]</span></a></sup> Dessutom har alla ryggsträngsdjur ett <a href="/wiki/Nerv" title="Nerv">nervrör</a> utefter ryggsidan som är deras viktigaste nervledning. Hos människor motsvaras det av <a href="/wiki/Ryggm%C3%A4rg" title="Ryggmärg">ryggmärgen</a>. Hos <a href="/wiki/Ringmaskar" title="Ringmaskar">ringmaskar</a> och <a href="/wiki/Leddjur" title="Leddjur">leddjur</a> motsvaras nervledningen av <a href="/w/index.php?title=Bukgangliekedja&action=edit&redlink=1" class="new" title="Bukgangliekedja [inte skriven än]">bukgangliekedjan</a>.<sup id="cite_ref-liber_2-0" class="reference"><a href="#cite_note-liber-2"><span class="cite-reference-link-bracket">[</span>2<span class="cite-reference-link-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Utbredning">Utbredning</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&veaction=edit&section=2" title="Redigera avsnitt: Utbredning" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&action=edit&section=2" title="Redigera avsnitts källkod: Utbredning"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ryggsträngsdjuren förekommer över hela jorden, och omkring 48 000 arter har beskrivits (2013). I Sverige fortplantar sig 525 av dessa, och ett antal <a href="/wiki/Fisk" class="mw-redirect" title="Fisk">fiskar</a> och <a href="/wiki/F%C3%A5glar" title="Fåglar">fåglar</a> förekommer sporadiskt.<sup id="cite_ref-ne_3-0" class="reference"><a href="#cite_note-ne-3"><span class="cite-reference-link-bracket">[</span>3<span class="cite-reference-link-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Ryggsträngsdjurens_indelning"><span id="Ryggstr.C3.A4ngsdjurens_indelning"></span>Ryggsträngsdjurens indelning</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&veaction=edit&section=3" title="Redigera avsnitt: Ryggsträngsdjurens indelning" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&action=edit&section=3" title="Redigera avsnitts källkod: Ryggsträngsdjurens indelning"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ryggsträngsdjuren delas in i ryggsträngsdjur utan ryggrad, vilka innefattar <a href="/wiki/Manteldjur" title="Manteldjur">manteldjuren</a>, såsom <a href="/wiki/Sj%C3%B6pungar" title="Sjöpungar">sjöpungar</a>, och <a href="/wiki/Lansettfiskar" title="Lansettfiskar">lansettfiskarna</a>. De har en ryggsträng men saknar ett ryggradsskelett. Störst avsaknad av ryggsträng noteras hos manteldjuren, där enbart larverna har ryggsträng och nervrör. När de växer tillbakabildas deras nervsystem successivt. Sjöpungen till exempel sitter därför på ett fast underlag efter att nervsystemet tillbakabildats, där de fungerar som filtrerare.<sup id="cite_ref-liber_2-1" class="reference"><a href="#cite_note-liber-2"><span class="cite-reference-link-bracket">[</span>2<span class="cite-reference-link-bracket">]</span></a></sup> </p><p>Ryggradsdjuren å andra sidan har en ryggrad och ett ryggradsskelett, vilket har möjliggjort betydligt större djur än inom de andra djurstammarna. <a href="/wiki/Bl%C3%A5val" title="Blåval">Blåvalen</a> är exempelvis förmodligen det största djur som någonsin har levat, och några ryggsträngsdjur eller lägre stammar har aldrig uppnått samma storlek.<sup id="cite_ref-liber_2-2" class="reference"><a href="#cite_note-liber-2"><span class="cite-reference-link-bracket">[</span>2<span class="cite-reference-link-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Systematik">Systematik</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&veaction=edit&section=4" title="Redigera avsnitt: Systematik" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&action=edit&section=4" title="Redigera avsnitts källkod: Systematik"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ryggsträngsdjuren har följande systematiska indelning:<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-reference-link-bracket">[</span>4<span class="cite-reference-link-bracket">]</span></a></sup> </p><p><b><a href="/wiki/Stam_(biologi)" class="mw-redirect" title="Stam (biologi)">Stam</a>: Ryggsträngsdjur (Chordata)</b> </p> <ul><li><a href="/wiki/Understam" title="Understam">Understam</a>: <a href="/wiki/Manteldjur" title="Manteldjur">Manteldjur</a> (Tunicata eller Urochordata) <ul><li><a href="/wiki/Klass_(biologi)" title="Klass (biologi)">Klass</a>: <a href="/wiki/Sj%C3%B6pungar" title="Sjöpungar">Sjöpungar</a> (<a href="/wiki/Ascidiacea" class="mw-redirect" title="Ascidiacea">Ascidiacea</a>)</li> <li>Klass: <a href="/wiki/Salper" title="Salper">Salper</a> (Thaliacea)</li> <li>Klass: <a href="/wiki/Appendikularier" title="Appendikularier">Appendikularier</a> (Larvacea eller Appendicularia)</li></ul></li> <li>Understam: <a href="/wiki/Lansettfiskar" title="Lansettfiskar">Lansettfiskar</a> (Cephalochordata)</li> <li>Understam: <a href="/wiki/Ryggradsdjur" title="Ryggradsdjur">Ryggradsdjur</a> (Vertebrata) <ul><li>Klass: <a href="/wiki/K%C3%A4kl%C3%B6sa_fiskar" title="Käklösa fiskar">Käklösa fiskar</a> (Agnatha)</li> <li>Klass: <a href="/wiki/Broskfiskar" title="Broskfiskar">Broskfiskar</a> (Chondrichthyes)</li> <li>Klass: <a href="/wiki/Benfiskar" title="Benfiskar">Benfiskar</a> (Osteichthyes)</li> <li>Klass: <a href="/wiki/Groddjur" title="Groddjur">Groddjur</a> (Amphibia)</li> <li>Klass: <a href="/wiki/Kr%C3%A4ldjur" title="Kräldjur">Kräldjur</a> (Reptilia)</li> <li>Klass: <a href="/wiki/F%C3%A5glar" title="Fåglar">Fåglar</a> (Aves)</li> <li>Klass: <a href="/wiki/D%C3%A4ggdjur" title="Däggdjur">Däggdjur</a> (Mammalia)</li></ul></li></ul> <div class="mw-heading mw-heading2"><h2 id="Referenser">Referenser</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&veaction=edit&section=5" title="Redigera avsnitt: Referenser" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&action=edit&section=5" title="Redigera avsnitts källkod: Referenser"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-nn-1"><a href="#cite_ref-nn_1-0">^</a> <span class="reference-text"><cite style="font-style:normal" class="web"><a rel="nofollow" class="external text" href="https://archive.is/20130820160523/http://www.nationalnyckeln.se/sv/bokverket/publicerade_volymer/Ryggstrangsdjur-Lansettfiskarbroskfiskar/">”Ryggsträngsdjur: Lansettfiskar–broskfiskar”</a>. <i><span>Sveriges fiskar</span></i>. Nationalnyckeln. Arkiverad från <a rel="nofollow" class="external text" href="http://www.nationalnyckeln.se/sv/bokverket/publicerade_volymer/Ryggstrangsdjur-Lansettfiskarbroskfiskar/">originalet</a> den 20 augusti 2013<span class="printonly">. <a rel="nofollow" class="external free" href="https://archive.is/20130820160523/http://www.nationalnyckeln.se/sv/bokverket/publicerade_volymer/Ryggstrangsdjur-Lansettfiskarbroskfiskar/">https://archive.is/20130820160523/http://www.nationalnyckeln.se/sv/bokverket/publicerade_volymer/Ryggstrangsdjur-Lansettfiskarbroskfiskar/</a></span><span class="reference-accessdate">. Läst 20 augusti 2013</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=Ryggstr%C3%A4ngsdjur%3A+Lansettfiskar%E2%80%93broskfiskar&rft.atitle=Sveriges+fiskar&rft.pub=Nationalnyckeln&rft_id=https%3A%2F%2Farchive.is%2F20130820160523%2Fhttp%3A%2F%2Fwww.nationalnyckeln.se%2Fsv%2Fbokverket%2Fpublicerade_volymer%2FRyggstrangsdjur-Lansettfiskarbroskfiskar%2F&rfr_id=info:sid/en.wikipedia.org:Ryggstr%C3%A4ngsdjur"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-liber-2">^ [<a href="#cite_ref-liber_2-0"><small>a</small></a> <a href="#cite_ref-liber_2-1"><small>b</small></a> <a href="#cite_ref-liber_2-2"><small>c</small></a>] <span class="reference-text"><cite style="font-style:normal" class="web"><a rel="nofollow" class="external text" href="http://www4.liber.se/gy/prodstod/4701610_biologi/biev52aorryg.htm">”Ryggsträngsdjur”</a>. <i><span>Biologi med Naturkunskap A</span></i>. Liber<span class="printonly">. <a rel="nofollow" class="external free" href="http://www4.liber.se/gy/prodstod/4701610_biologi/biev52aorryg.htm">http://www4.liber.se/gy/prodstod/4701610_biologi/biev52aorryg.htm</a></span><span class="reference-accessdate">. Läst 20 augusti 2013</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=Ryggstr%C3%A4ngsdjur&rft.atitle=Biologi+med+Naturkunskap+A&rft.pub=Liber&rft_id=http%3A%2F%2Fwww4.liber.se%2Fgy%2Fprodstod%2F4701610_biologi%2Fbiev52aorryg.htm&rfr_id=info:sid/en.wikipedia.org:Ryggstr%C3%A4ngsdjur"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-ne-3"><a href="#cite_ref-ne_3-0">^</a> <span class="reference-text"><cite style="font-style:normal" class="web"><a rel="nofollow" class="external text" href="http://www.ne.se/ryggsträngsdjur">”Ryggsträngsdjur”</a>. Nationalencyklopedin<span class="printonly">. <a rel="nofollow" class="external free" href="http://www.ne.se/ryggsträngsdjur">http://www.ne.se/ryggsträngsdjur</a></span><span class="reference-accessdate">. Läst 20 augusti 2013</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=Ryggstr%C3%A4ngsdjur&rft.atitle=&rft.pub=Nationalencyklopedin&rft_id=http%3A%2F%2Fwww.ne.se%2Fryggstr%C3%A4ngsdjur&rfr_id=info:sid/en.wikipedia.org:Ryggstr%C3%A4ngsdjur"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-4"><a href="#cite_ref-4">^</a> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=158852">ITIS</a> <span style="font-size:.95em;font-weight:bold;color:var(--color-subtle, #54595d);">(engelska)</span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Externa_länkar"><span id="Externa_l.C3.A4nkar"></span>Externa länkar</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&veaction=edit&section=6" title="Redigera avsnitt: Externa länkar" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Ryggstr%C3%A4ngsdjur&action=edit&section=6" title="Redigera avsnitts källkod: Externa länkar"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://tolweb.org/tree?group=Vertebrata&contgroup=Craniata">Tree of Life web project: Vertebrata, Animals with backbones</a> <span style="font-size:.95em;font-weight:bold;color:var(--color-subtle, #54595d);">(engelska)</span></li></ul> <style data-mw-deduplicate="TemplateStyles:r56287950">.mw-parser-output table.navbox{border:#aaa 1px solid;width:100%;margin:auto;margin-top:1em;clear:both;font-size:88%;text-align:center;padding:1px}.mw-parser-output link+table.navbox{margin-top:-1px}.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow,.mw-parser-output table.navbox th{text-align:center;padding-left:1em;padding-right:1em}.mw-parser-output .navbox-thlinkcolor .navbox-title button,.mw-parser-output .navbox-thlinkcolor .navbox-title .mw-collapsible-text,.mw-parser-output .navbox-thlinkcolor .navbox-title a{color:inherit}.mw-parser-output .nowraplinks a,.mw-parser-output .nowraplinks .selflink{white-space:nowrap}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right;font-weight:bold;padding-left:1em;padding-right:1em}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background:#fdfdfd}.mw-parser-output .navbox-list{border-color:#fdfdfd}.mw-parser-output .navbox-title,.mw-parser-output table.navbox th{background:#b0c4de}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background:#d0e0f5}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background:#deeafa}.mw-parser-output .navbox-even{background:#f7f7f7}.mw-parser-output .navbox-odd{background:transparent}</style><table cellspacing="0" class="navbox" style="border-spacing:0;"><tbody><tr><td style="padding:2px;"><table cellspacing="0" class="nowraplinks hlist auktoritetsdata navbox-inner" style="border-spacing:0;background:transparent;color:inherit;"><tbody><tr><th scope="row" class="navbox-group"><a href="/wiki/Auktoritetsdata" title="Auktoritetsdata">Auktoritetsdata</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;"><div style="padding:0em 0.25em;"> • <a href="/wiki/Library_of_Congress_Control_Number" title="Library of Congress Control Number">LCCN</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://id.loc.gov/authorities/subjects/sh85024735">sh85024735</a></span> • <a href="/wiki/Gemeinsame_Normdatei" title="Gemeinsame Normdatei">GND</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://d-nb.info/gnd/4147895-2">4147895-2</a></span> • <a href="/wiki/Biblioth%C3%A8que_nationale_de_France" title="Bibliothèque nationale de France">BNF</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://catalogue.bnf.fr/ark:/12148/cb120181434">cb120181434</a> <a rel="nofollow" class="external text" href="http://data.bnf.fr/ark:/12148/cb120181434">(data)</a></span> • <a href="/wiki/Nationella_parlamentsbiblioteket" title="Nationella parlamentsbiblioteket">NDL</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://id.ndl.go.jp/auth/ndlna/00570575">00570575</a></span> • <a href="/wiki/Tjeckiska_nationalbiblioteket" title="Tjeckiska nationalbiblioteket">NKC</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://aleph.nkp.cz/F/?func=find-c&local_base=aut&ccl_term=ica=ph116303&CON_LNG=ENG">ph116303</a></span></div></td></tr></tbody></table></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r56287950"><table class="navbox" style="border-spacing:0; ;"><tbody><tr><td style="padding:2px;"><table class="" style="width:100%;border-spacing:0;background:transparent;color:inherit;;"><tbody><tr><td class="navbox-group" style=";letter-spacing:0.1px;;"><a href="https://www.wikidata.org/wiki/Wikidata:WikiProject_Taxonomy" class="extiw" title="wikidata:Wikidata:WikiProject Taxonomy">Katalogdata</a></td><td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-"><div style="padding:0em 0.25em"><div class="hlist hlist-separated"><span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span>AFD:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="https://biodiversity.org.au/afd/taxa/Chordata">Chordata</a></span>​​​<span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span><a href="/wiki/BioLib" title="BioLib">BioLib</a>:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="https://www.biolib.cz/en/taxon/id14966">14966</a></span>​<span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span><a href="/wiki/Artdatabanken" title="Artdatabanken">Dyntaxa</a>:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="https://www.dyntaxa.se/taxon/info/5000034">5000034</a></span>​<span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span><a href="/wiki/Encyclopedia_of_Life" title="Encyclopedia of Life">EoL</a>:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="https://eol.org/pages/694">694</a></span>​<span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span><a href="/wiki/Global_Biodiversity_Information_Facility" title="Global Biodiversity Information Facility">GBIF</a>:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="https://www.gbif.org/species/44">44</a></span>​​​<span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span><a href="/wiki/Inaturalist" title="Inaturalist">Inaturalist</a>:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="https://inaturalist.org/taxa/2">2</a></span>​<span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span><a href="/wiki/Integrated_Taxonomic_Information_System" title="Integrated Taxonomic Information System">ITIS</a>:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=158852">158852</a></span>​​<span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span><a href="/wiki/National_Center_for_Biotechnology_Information" title="National Center for Biotechnology Information">NCBI</a>:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=7711">7711</a></span>​<span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span><a href="/wiki/Fossilworks" title="Fossilworks">Fossilworks</a>:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="https://web.archive.org/web/0/http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=273393">273393</a></span>​<span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span><a href="/wiki/WoRMS" class="mw-redirect" title="WoRMS">WoRMS</a>:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="https://www.marinespecies.org/aphia.php?p=taxdetails&id=1821">1821</a></span>​​​​​​​​​​​​​​​<span style="white-space:nowrap;"> </span>•<span style="white-space:nowrap;"> </span><a href="/wiki/Fauna_Europaea" title="Fauna Europaea">Fauna Europaea</a>:<span style="white-space:nowrap;"> </span><span class="url"><a rel="nofollow" class="external text" href="http://www.eu-nomen.eu/portal/taxon.php?GUID=urn:lsid:faunaeur.org:taxname:11996">11996</a></span>​​​​​​​​​​​​​ </div></div></td></tr></tbody></table></td></tr></tbody></table> <!-- NewPP limit report Parsed by mw‐web.eqiad.main‐75c465f4c6‐j2bwz Cached time: 20241125095946 Cache expiry: 2592000 Reduced expiry: false Complications: [show‐toc] CPU time usage: 0.455 seconds Real time usage: 0.636 seconds Preprocessor visited node count: 8618/1000000 Post‐expand include size: 67397/2097152 bytes Template argument size: 35269/2097152 bytes Highest expansion depth: 23/100 Expensive parser function count: 11/500 Unstrip recursion depth: 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