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class="vector-menu-heading"> Pagine per utenti anonimi <a href="/wiki/Aiuto:Benvenuto" aria-label="Ulteriori informazioni sulla contribuzione"><span>ulteriori informazioni</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Speciale:MieiContributi" title="Un elenco delle modifiche fatte da questo indirizzo IP [y]" accesskey="y"><span>contributi</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Speciale:MieDiscussioni" title="Discussioni sulle modifiche fatte da questo indirizzo IP [n]" accesskey="n"><span>discussioni</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" 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data-event-name="pinnable-header.vector-toc.unpin">nascondi</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">Inizio</div> </a> </li> <li id="toc-Descrizione" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Descrizione"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Descrizione</span> </div> </a> <ul id="toc-Descrizione-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Distribuzione_stratigrafica" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Distribuzione_stratigrafica"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Distribuzione stratigrafica</span> </div> </a> <ul id="toc-Distribuzione_stratigrafica-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Distribuzione_attuale" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Distribuzione_attuale"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Distribuzione attuale</span> </div> </a> <ul id="toc-Distribuzione_attuale-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Presenza_al_di_fuori_del_pianeta_Terra" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Presenza_al_di_fuori_del_pianeta_Terra"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Presenza al di fuori del pianeta Terra</span> </div> </a> <ul id="toc-Presenza_al_di_fuori_del_pianeta_Terra-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Ambienti_sedimentari_correlati" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Ambienti_sedimentari_correlati"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Ambienti sedimentari correlati</span> </div> </a> <ul id="toc-Ambienti_sedimentari_correlati-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altri_progetti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Altri_progetti"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Altri progetti</span> </div> </a> <ul id="toc-Altri_progetti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-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="Indice" 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="Mostra/Nascondi l'indice" > <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">Mostra/Nascondi l'indice</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">Stromatoliti</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="Vai a una voce in un'altra lingua. Disponibile in 47 lingue" > <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-47" 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">47 lingue</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/Stromatoliet" title="Stromatoliet - afrikaans" lang="af" hreflang="af" data-title="Stromatoliet" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B3%D8%AA%D8%B1%D9%88%D9%85%D8%A7%D8%AA%D9%88%D9%84%D9%8A%D8%AA" title="ستروماتوليت - arabo" lang="ar" hreflang="ar" data-title="ستروماتوليت" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A1%D1%82%D1%80%D0%B0%D0%BC%D0%B0%D1%82%D0%B0%D0%BB%D1%96%D1%82%D1%8B" title="Страматаліты - bielorusso" lang="be" hreflang="be" data-title="Страматаліты" data-language-autonym="Беларуская" data-language-local-name="bielorusso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A1%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D1%82%D0%BE%D0%BB%D0%B8%D1%82" title="Строматолит - bulgaro" lang="bg" hreflang="bg" data-title="Строматолит" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Estromat%C3%B2lit" title="Estromatòlit - catalano" lang="ca" hreflang="ca" data-title="Estromatòlit" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Stromatolit" title="Stromatolit - ceco" lang="cs" hreflang="cs" data-title="Stromatolit" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Stromatolit" title="Stromatolit - danese" lang="da" hreflang="da" data-title="Stromatolit" data-language-autonym="Dansk" data-language-local-name="danese" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Stromatolith" title="Stromatolith - tedesco" lang="de" hreflang="de" data-title="Stromatolith" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A3%CF%84%CF%81%CF%89%CE%BC%CE%B1%CF%84%CF%8C%CE%BB%CE%B9%CE%B8%CE%BF%CF%82" title="Στρωματόλιθος - greco" lang="el" hreflang="el" data-title="Στρωματόλιθος" data-language-autonym="Ελληνικά" data-language-local-name="greco" 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/Stromatolite" title="Stromatolite - inglese" lang="en" hreflang="en" data-title="Stromatolite" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Stromatolito" title="Stromatolito - esperanto" lang="eo" hreflang="eo" data-title="Stromatolito" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Estromatolito" title="Estromatolito - spagnolo" lang="es" hreflang="es" data-title="Estromatolito" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Stromatoliit" title="Stromatoliit - estone" lang="et" hreflang="et" data-title="Stromatoliit" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Estromatolito" title="Estromatolito - basco" lang="eu" hreflang="eu" data-title="Estromatolito" data-language-autonym="Euskara" data-language-local-name="basco" 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%A7%D8%B3%D8%AA%D8%B1%D9%88%D9%85%D8%A7%D8%AA%D9%88%D9%84%DB%8C%D8%AA" title="استروماتولیت - persiano" lang="fa" hreflang="fa" data-title="استروماتولیت" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Stromatoliitti" title="Stromatoliitti - finlandese" lang="fi" hreflang="fi" data-title="Stromatoliitti" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Stromatolithe" title="Stromatolithe - francese" lang="fr" hreflang="fr" data-title="Stromatolithe" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Estromat%C3%B3lito" title="Estromatólito - galiziano" lang="gl" hreflang="gl" data-title="Estromatólito" data-language-autonym="Galego" data-language-local-name="galiziano" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A1%D7%98%D7%A8%D7%95%D7%9E%D7%98%D7%95%D7%9C%D7%99%D7%98" title="סטרומטוליט - ebraico" lang="he" hreflang="he" data-title="סטרומטוליט" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B8%E0%A5%8D%E0%A4%9F%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%AE%E0%A5%88%E0%A4%9F%E0%A5%8B%E0%A4%B2%E0%A4%BE%E0%A4%87%E0%A4%9F" title="स्ट्रोमैटोलाइट - hindi" lang="hi" hreflang="hi" data-title="स्ट्रोमैटोलाइट" 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/Stromatolit" title="Stromatolit - croato" lang="hr" hreflang="hr" data-title="Stromatolit" data-language-autonym="Hrvatski" data-language-local-name="croato" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Sztromatolit" title="Sztromatolit - ungherese" lang="hu" hreflang="hu" data-title="Sztromatolit" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8D%D5%BF%D6%80%D5%B8%D5%B4%D5%A1%D5%BF%D5%B8%D5%AC%D5%AB%D5%BF" title="Ստրոմատոլիտ - armeno" lang="hy" hreflang="hy" data-title="Ստրոմատոլիտ" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Stromatolit" title="Stromatolit - indonesiano" lang="id" hreflang="id" data-title="Stromatolit" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B9%E3%83%88%E3%83%AD%E3%83%9E%E3%83%88%E3%83%A9%E3%82%A4%E3%83%88" title="ストロマトライト - giapponese" lang="ja" hreflang="ja" data-title="ストロマトライト" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A1%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D1%82%D0%BE%D0%BB%D0%B8%D1%82" title="Строматолит - kazako" lang="kk" hreflang="kk" data-title="Строматолит" data-language-autonym="Қазақша" data-language-local-name="kazako" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%8A%A4%ED%8A%B8%EB%A1%9C%EB%A7%88%ED%86%A8%EB%9D%BC%EC%9D%B4%ED%8A%B8" title="스트로마톨라이트 - coreano" lang="ko" hreflang="ko" data-title="스트로마톨라이트" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Stromatolitas" title="Stromatolitas - lituano" lang="lt" hreflang="lt" data-title="Stromatolitas" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Stromatol%C4%ABti" title="Stromatolīti - lettone" lang="lv" hreflang="lv" data-title="Stromatolīti" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A1%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D1%82%D0%BE%D0%BB%D0%B8%D1%82" title="Строматолит - macedone" lang="mk" hreflang="mk" data-title="Строматолит" data-language-autonym="Македонски" data-language-local-name="macedone" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Stromatoliet" title="Stromatoliet - olandese" lang="nl" hreflang="nl" data-title="Stromatoliet" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Stromatolitt" title="Stromatolitt - norvegese nynorsk" lang="nn" hreflang="nn" data-title="Stromatolitt" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegese nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Stromatolitter" title="Stromatolitter - norvegese bokmål" lang="nb" hreflang="nb" data-title="Stromatolitter" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Stromatolity" title="Stromatolity - polacco" lang="pl" hreflang="pl" data-title="Stromatolity" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Stromatolita" title="Stromatolita - piemontese" lang="pms" hreflang="pms" data-title="Stromatolita" data-language-autonym="Piemontèis" data-language-local-name="piemontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Estromat%C3%B3lito" title="Estromatólito - portoghese" lang="pt" hreflang="pt" data-title="Estromatólito" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A1%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D1%82%D0%BE%D0%BB%D0%B8%D1%82%D1%8B" title="Строматолиты - russo" lang="ru" hreflang="ru" data-title="Строматолиты" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Stromatoliti" title="Stromatoliti - serbo-croato" lang="sh" hreflang="sh" data-title="Stromatoliti" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croato" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Stromatolite" title="Stromatolite - Simple English" lang="en-simple" hreflang="en-simple" data-title="Stromatolite" 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-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Stromatolit" title="Stromatolit - slovacco" lang="sk" hreflang="sk" data-title="Stromatolit" data-language-autonym="Slovenčina" data-language-local-name="slovacco" 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/Stromatolit" title="Stromatolit - sloveno" lang="sl" hreflang="sl" data-title="Stromatolit" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Stromatolit" title="Stromatolit - svedese" lang="sv" hreflang="sv" data-title="Stromatolit" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AA%E0%B9%82%E0%B8%95%E0%B8%A3%E0%B8%A1%E0%B8%B2%E0%B9%82%E0%B8%95%E0%B9%84%E0%B8%A5%E0%B8%95%E0%B9%8C" title="สโตรมาโตไลต์ - thailandese" lang="th" hreflang="th" data-title="สโตรมาโตไลต์" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Stromatolit" title="Stromatolit - turco" lang="tr" hreflang="tr" data-title="Stromatolit" data-language-autonym="Türkçe" data-language-local-name="turco" 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%A1%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D1%82%D0%BE%D0%BB%D1%96%D1%82%D0%B8" title="Строматоліти - ucraino" lang="uk" hreflang="uk" data-title="Строматоліти" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Stromatolit" title="Stromatolit - vietnamita" lang="vi" hreflang="vi" data-title="Stromatolit" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%96%8A%E5%B1%A4%E7%9F%B3" title="疊層石 - cinese" lang="zh" hreflang="zh" data-title="疊層石" data-language-autonym="中文" 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class="vector-pinnable-header-label">Aspetto</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">nascondi</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="it" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:SoegininaStromatolitesEstonia.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/92/SoegininaStromatolitesEstonia.jpg/220px-SoegininaStromatolitesEstonia.jpg" decoding="async" width="220" height="142" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/92/SoegininaStromatolitesEstonia.jpg/330px-SoegininaStromatolitesEstonia.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/92/SoegininaStromatolitesEstonia.jpg/440px-SoegininaStromatolitesEstonia.jpg 2x" data-file-width="3372" data-file-height="2180" /></a><figcaption>Stromatoliti: è osservabile sia la superficie superiore con andamento mammellonare, che la sezione verticale mostrante le laminazioni di crescita</figcaption></figure> <p>Le <b>stromatoliti</b> (dal greco στρώμα, <i>strōma</i>, tappeto, coperta e λὶθος, <i>lìthos</i>, pietra) sono strutture sedimentarie, appartenenti al gruppo dei calcari non particellari biocostruiti, finemente laminate, dovute all'attività di microrganismi bentonici <a href="/wiki/Fotosintesi_clorofilliana" title="Fotosintesi clorofilliana">fotosintetici</a>, specialmente <a href="/wiki/Cianobatteri" class="mw-redirect" title="Cianobatteri">cianobatteri</a> (procarioti fotosintetici). Le stromatoliti forniscono informazioni sulle più antiche forme di vita ed alcune strutture rinvenute in Groenlandia sono datate più di 3,7 miliardi di anni.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Esistono anche stromatoliti che hanno caratteristiche riconducibili a fenomeni di precipitazione non biologica; il rinvenimento di criteri per distinguere fra stromatoliti di origine biotica ed abiotica è uno dei campi di studio attuali della ricerca in geologia.<sup id="cite_ref-Lepot2008_2-0" class="reference"><a href="#cite_note-Lepot2008-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Stromatolites_Cochabamba.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Stromatolites_Cochabamba.jpg/220px-Stromatolites_Cochabamba.jpg" decoding="async" width="220" height="281" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Stromatolites_Cochabamba.jpg/330px-Stromatolites_Cochabamba.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Stromatolites_Cochabamba.jpg/440px-Stromatolites_Cochabamba.jpg 2x" data-file-width="3516" data-file-height="4494" /></a><figcaption>Sezione di stromatoliti colonnari proterozoiche</figcaption></figure> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Descrizione">Descrizione</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stromatoliti&veaction=edit&section=1" title="Modifica la sezione Descrizione" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stromatoliti&action=edit&section=1" title="Edit section's source code: Descrizione"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Le stromatoliti si formano per intrappolamento periodico nella mucillagine prodotta da cianobatteri, di <a href="/wiki/Sedimentologia" title="Sedimentologia">sedimento</a> particellare molto fine, costituito in prevalenza da fango carbonatico. Dopo che il primo tappeto algale ha fissato le particelle del sedimento sulla sua superficie gelatinosa, fino ad essere completamente coperto, i filamenti algali si sviluppano al di sopra e formano così un altro tappeto. Così facendo si forma una successione di livelli alternati di sostanza organica con altri ricchi di sedimento. A causa dei processi <a href="/wiki/Diagenesi" title="Diagenesi">diagenetici</a>, raramente si conservano i resti delle microalghe e la laminazione è l'unica testimonianza della loro attività. La morfologia delle stromatoliti è molto variabile, da lamine piano-parallele a ondulate, fino a mammellonari e colonnari, a seconda del tipo di alghe o batteri che le costituiscono e delle condizioni ambientali. In ambiente con elevata energia delle acque, i tappeti algali possono formare involucri concentrici intorno ad oggetti ("nuclei") sottoposti a rotolamento continuo per opera di onde e correnti, dando origine ad oggetti isolati chiamati <i>oncoliti</i>, che costituiscono un caso particolare di stromatolite. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Stromatolites_in_Sharkbay.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Stromatolites_in_Sharkbay.jpg/220px-Stromatolites_in_Sharkbay.jpg" decoding="async" width="220" height="164" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Stromatolites_in_Sharkbay.jpg/330px-Stromatolites_in_Sharkbay.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Stromatolites_in_Sharkbay.jpg/440px-Stromatolites_in_Sharkbay.jpg 2x" data-file-width="2440" data-file-height="1816" /></a><figcaption>Ambiente di formazione attuale di Stromatoliti (in questo caso da mammellonari a colonnari) - <a href="/wiki/Shark_Bay" class="mw-redirect" title="Shark Bay">Shark Bay</a> in Australia Occidentale</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Lake_Thetis-Stromatolites-LaRuth.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/02/Lake_Thetis-Stromatolites-LaRuth.jpg/220px-Lake_Thetis-Stromatolites-LaRuth.jpg" decoding="async" width="220" height="161" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/02/Lake_Thetis-Stromatolites-LaRuth.jpg/330px-Lake_Thetis-Stromatolites-LaRuth.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/02/Lake_Thetis-Stromatolites-LaRuth.jpg/440px-Lake_Thetis-Stromatolites-LaRuth.jpg 2x" data-file-width="800" data-file-height="584" /></a><figcaption>Altre Stromatoliti viventi, con morfologia mammellonare - <a href="/w/index.php?title=Lake_Thetis&action=edit&redlink=1" class="new" title="Lake Thetis (la pagina non esiste)">Lake Thetis</a>, in Australia Occidentale</figcaption></figure> <div class="mw-heading mw-heading2"><h2 id="Distribuzione_stratigrafica">Distribuzione stratigrafica</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stromatoliti&veaction=edit&section=2" title="Modifica la sezione Distribuzione stratigrafica" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stromatoliti&action=edit&section=2" title="Edit section's source code: Distribuzione stratigrafica"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Sono fossili ampiamente diffusi in tutto il <a href="/wiki/Precambriano" title="Precambriano">Precambriano</a>. Le stromatoliti più antiche di origine microbiotica accertata risalgono a 2 724 milioni di anni fa;<sup id="cite_ref-Lepot2008_2-1" class="reference"><a href="#cite_note-Lepot2008-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> nuove scoperte mostrano forti evidenze di stromatoliti da attività microbiotica risalenti a circa 3 450 milioni di anni fa<sup id="cite_ref-Allwood2009_3-0" class="reference"><a href="#cite_note-Allwood2009-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> e nel 2016 sono state rinvenute stromatoliti databili a 3 700 milioni di anni fa nella regione Isua in Groenlandia. Tra le più note, quelle rinvenute nella <a href="/wiki/Gunflint_Iron_Formation" title="Gunflint Iron Formation">Gunflint Iron Formation</a> in <a href="/wiki/Canada" title="Canada">Canada</a>, risalenti a circa 2 miliardi di anni fa. </p><p>La comparsa delle stromatoliti, correlata con la comparsa di ossigeno libero nell'atmosfera terrestre, prodotto dalle alghe e la diffusione e crescita dell'ossigeno fino ai livelli attuali nell'atmosfera, è avvenuta nel corso di quasi tre miliardi di anni, durante i quali le stromatoliti si sono diffuse sul globo, costituendo quasi l'unica presenza fossile oggi rinvenibile come traccia di vita per quel periodo. </p><p>Nell'<a href="/wiki/Archeano" title="Archeano">Archeano</a> le stromatoliti sono piuttosto rare e strutturalmente semplici; diventano abbondanti e diversificate nel <a href="/wiki/Proterozoico" title="Proterozoico">Proterozoico</a>. Le stromatoliti diminuirono in modo definitivo circa 680 milioni di anni fa; si verificò una modesta ripresa solo nel passaggio <a href="/wiki/Cambriano" title="Cambriano">Cambriano</a>-<a href="/wiki/Ordoviciano" title="Ordoviciano">Ordoviciano</a>. Tale declino è attribuibile alla comparsa dei primi <a href="/wiki/Metazoi" class="mw-redirect" title="Metazoi">metazoi</a> brucatori e degli organismi fossatori che <a href="/wiki/Bioturbazione" title="Bioturbazione">bioturbavano</a> i fondali marini distruggendo la tessitura delle lamine. </p><p>In <a href="/wiki/Italia" title="Italia">Italia</a> sono abbastanza frequenti nelle formazioni del <a href="/wiki/Cambriano_inferiore" title="Cambriano inferiore">Cambriano inferiore</a> della <a href="/wiki/Sardegna" title="Sardegna">Sardegna</a> e <a href="/wiki/Triassico" title="Triassico">triassiche</a> delle <a href="/wiki/Alpi" title="Alpi">Alpi</a> e degli <a href="/wiki/Appennini" title="Appennini">Appennini</a>, in ambiente di <a href="/wiki/Piattaforma_carbonatica" title="Piattaforma carbonatica">piattaforma carbonatica</a>; non sono mai state segnalate in rocce di epoca precambriana.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Distribuzione_attuale">Distribuzione attuale</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stromatoliti&veaction=edit&section=3" title="Modifica la sezione Distribuzione attuale" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stromatoliti&action=edit&section=3" title="Edit section's source code: Distribuzione attuale"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Attualmente le stromatoliti si formano in ambienti marini marginali di <a href="/wiki/Piana_di_marea" title="Piana di marea">piana di marea</a>, nella <a href="/wiki/Zona_intertidale" class="mw-redirect" title="Zona intertidale">zona intertidale</a> a salinità normale od elevata ma anche in ambienti subtidali di alcune aree dell'Australia, della Florida, delle Bahamas e del Golfo Persico. Queste strutture sono presenti diffusamente anche in ambiente <a href="/wiki/Lago" title="Lago">lacustre</a>, soprattutto in clima temperato-tropicale, come prodotto dell'attività batterica. </p><p>Hanno un importante significato <a href="/wiki/Paleoecologia" title="Paleoecologia">paleoambientale</a> e, almeno nel <a href="/wiki/Fanerozoico" title="Fanerozoico">Fanerozoico</a>, sono dei buoni indicatori di ambienti di acque basse ad elevata stabilità ambientale. Quelle attuali sono morfologicamente diverse da quelle del Proterozoico, che spesso si presentano con morfologie elaborate. </p> <div class="mw-heading mw-heading2"><h2 id="Presenza_al_di_fuori_del_pianeta_Terra">Presenza al di fuori del pianeta Terra</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stromatoliti&veaction=edit&section=4" title="Modifica la sezione Presenza al di fuori del pianeta Terra" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stromatoliti&action=edit&section=4" title="Edit section's source code: Presenza al di fuori del pianeta Terra"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Su alcune meteoriti di origine marziana recentemente si sono trovate tracce di tali strutture,<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> che proverebbero l'esistenza di vita su <a href="/wiki/Marte_(astronomia)" title="Marte (astronomia)">Marte</a> in un lontano passato. </p> <div class="mw-heading mw-heading2"><h2 id="Ambienti_sedimentari_correlati">Ambienti sedimentari correlati</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stromatoliti&veaction=edit&section=5" title="Modifica la sezione Ambienti sedimentari correlati" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stromatoliti&action=edit&section=5" title="Edit section's source code: Ambienti sedimentari correlati"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Piana_di_marea" title="Piana di marea">Piana di marea</a></li> <li><a href="/wiki/Piattaforma_carbonatica" title="Piattaforma carbonatica">Piattaforma carbonatica</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stromatoliti&veaction=edit&section=6" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stromatoliti&action=edit&section=6" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> Allen P. Nutman, Vickie C. Bennett, Clark R. L. Friend, Martin J. Van Kranendonk e Allan R. Chivas, <a rel="nofollow" class="external text" href="https://www.nature.com/doifinder/10.1038/nature19355"><span style="font-style:italic;">Rapid emergence of life shown by discovery of 3,700-million-year-old microbial structures</span></a>, in <span style="font-style:italic;">Nature</span>, vol. 537, 2016, pp. 535–538, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1038%2Fnature19355">10.1038/nature19355</a>, <a href="/wiki/PMID" title="PMID">PMID</a> <a rel="nofollow" class="external text" href="//www.ncbi.nlm.nih.gov/pubmed/27580034">27580034</a>.</cite></span> </li> <li id="cite_note-Lepot2008-2"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Lepot2008_2-0">a</a></i></sup> <sup><i><a href="#cite_ref-Lepot2008_2-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> Kevin Lepot, Karim Benzerara, Gordon E. Brown, Pascal Philippot, <a rel="nofollow" class="external text" href="https://oadoi.org/10.1038/ngeo107"><span style="font-style:italic;">Microbially influenced formation of 2.7 billion-year-old stromatolites</span></a>, in <span style="font-style:italic;">Nature Geoscience</span>, vol. 1, n. 2, 2008, pp. 118–21, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1038%2Fngeo107">10.1038/ngeo107</a>.</cite></span> </li> <li id="cite_note-Allwood2009-3"><a href="#cite_ref-Allwood2009_3-0"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> Abigail Allwood, Grotzinger, Knoll, Burch, Anderson, Coleman, and Kanik, <a rel="nofollow" class="external text" href="https://oadoi.org/10.1073/pnas.0903323106"><span style="font-style:italic;">Controls on development and diversity of Early Archean stromatolites</span></a>, in <span style="font-style:italic;">Proceedings of the National Academy of Sciences</span>, vol. 106, n. 24, 2009, pp. 9548–9555, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1073%2Fpnas.0903323106">10.1073/pnas.0903323106</a>.</cite></span> </li> <li id="cite_note-4"><a href="#cite_ref-4"><b>^</b></a> <span class="reference-text"><cite class="citation libro" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://archive.org/details/cradleoflifedisc0000scho"><span style="font-style:italic;">Cradle of life: the discovery of earth's earliest fossils</span></a>, Princeton, N.J, Princeton University Press, 1999, pp. 87–89, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/0-691-08864-0" title="Speciale:RicercaISBN/0-691-08864-0">0-691-08864-0</a>.</cite></span> </li> <li id="cite_note-5"><a href="#cite_ref-5"><b>^</b></a> <span class="reference-text">D'altro canto, il <a href="/wiki/Metamorfismo" title="Metamorfismo">metamorfismo</a>, di grado più o meno elevato, cui sono soggette le formazioni di epoca precambriana in Italia, può aver obliterato le tracce di queste strutture eventualmente presenti.</span> </li> <li id="cite_note-6"><a href="#cite_ref-6"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://www.repubblica.it/scienze/2010/01/10/news/meteoriti_marte-1896546/"><span style="font-style:italic;">La NASA Afferma "Probabilmente c'è stata vita su Marte"</span></a>, su <span style="font-style:italic;">repubblica.it</span>, <i>Repubblica.it</i>. <small>URL consultato l'11 gennaio 2010</small>.</cite></span> </li> <li id="cite_note-7"><a href="#cite_ref-7"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://web.archive.org/web/20100112043534/http://www.nasa.gov/centers/johnson/news/releases/2009/J09-030.html"><span style="font-style:italic;">New Study Adds to Finding of Ancient Life Signs in Mars Meteorite</span></a>, su <span style="font-style:italic;">nasa.gov</span>, <i>Nasa.gov</i>. <small>URL consultato l'11 gennaio 2010</small> <small>(archiviato dall'<abbr title="https://www.nasa.gov/centers/johnson/news/releases/2009/J09-030.html">url originale</abbr> il 12 gennaio 2010)</small>.</cite></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stromatoliti&veaction=edit&section=7" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stromatoliti&action=edit&section=7" title="Edit section's source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><span class="plainlinks" title="commons:Category:Stromatolites"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Stromatolites?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file su <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Stromatolites?uselang=it">stromatolite</a></span></b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stromatoliti&veaction=edit&section=8" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Stromatoliti&action=edit&section=8" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li class="mw-empty-elt"></li> <li><cite id="CITEREFBritannica.com" class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://www.britannica.com/science/stromatolite"><span style="font-style:italic;">stromatolite</span></a>, su <span style="font-style:italic;"><a href="/wiki/Enciclopedia_Britannica" title="Enciclopedia Britannica">Enciclopedia Britannica</a></span>, Encyclopædia Britannica, Inc.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q176739#P1417" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></li></ul> <style data-mw-deduplicate="TemplateStyles:r140554510">.mw-parser-output .CdA{border:1px solid #aaa;width:100%;margin:auto;font-size:90%;padding:2px}.mw-parser-output .CdA th{background-color:#f2f2f2;font-weight:bold;width:20%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .CdA{border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .CdA th{background-color:#202122}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .CdA{border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .CdA th{background-color:#202122}}</style><table class="CdA"><tbody><tr><th><a href="/wiki/Aiuto:Controllo_di_autorit%C3%A0" title="Aiuto:Controllo di autorità">Controllo di autorità</a></th><td><a href="/wiki/Biblioteca_nazionale_di_Israele" title="Biblioteca nazionale di Israele">J9U</a> <span class="uid">(<span style="font-weight:bolder; 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