{"id":1924,"date":"2014-06-11T18:39:55","date_gmt":"2014-06-11T23:39:55","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=1924"},"modified":"2014-06-11T18:39:55","modified_gmt":"2014-06-11T23:39:55","slug":"de-nouveaux-fossiles-aux-branchies-etonnantes","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/de-nouveaux-fossiles-aux-branchies-etonnantes\/","title":{"rendered":"De nouveaux fossiles aux branchies \u00e9tonnantes<img src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/01\/canada_flag_icon_small.gif\">"},"content":{"rendered":"<div id=\"attachment_1920\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/06\/Caron1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1920\" class=\"size-full wp-image-1920\" src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/06\/Caron1.jpg\" alt=\"Vue d\u2019artiste d\u2019un poisson primitif, Metaspriggina walcottii, qui a v\u00e9cu il y a 500 millions d\u2019ann\u00e9es. Une analyse de nouveaux fossiles bien conserv\u00e9s r\u00e9v\u00e8le que ces esp\u00e8ces seraient les premi\u00e8res \u00e0 avoir des structures ressemblant \u00e0 une m\u00e2choire. (Cr\u00e9dit: Marianne Collins) \" width=\"400\" height=\"343\" srcset=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/06\/Caron1.jpg 400w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/06\/Caron1-300x257.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-1920\" class=\"wp-caption-text\">Vue d\u2019artiste d\u2019un poisson primitif, Metaspriggina walcottii, qui a v\u00e9cu il y a 500 millions d\u2019ann\u00e9es. Une analyse de nouveaux fossiles bien conserv\u00e9s r\u00e9v\u00e8le que ces esp\u00e8ces seraient les premi\u00e8res \u00e0 avoir des structures ressemblant \u00e0 une m\u00e2choire. (Cr\u00e9dit: Marianne Collins)<\/p><\/div>\n<p><span style=\"color: #000000;\">De nouveaux fossiles de poissons d\u00e9couverts dans la formation de Marble Canyon au parc national du Canada Kootenay nous donnent une id\u00e9e de comment les m\u00e2choires ont \u00e9volu\u00e9 dans le temps. <\/span><\/p>\n<p><span style=\"color: #000000;\">Ces fossiles d\u2019un poisson vieux de 5000 millions d\u2019ann\u00e9es font partie des plus vieux poissons jamais trouv\u00e9s. <\/span><\/p>\n<p><span style=\"color: #000000;\">En regardant les barres branchiales associ\u00e9es aux branchies, les auteurs estiment que ces poissons sont les anc\u00eatres des poissons \u00e0 m\u00e2choires modernes.<\/span><\/p>\n<p>Pour lire l\u2019article original publi\u00e9 dans\u00a0<em>Nature\u00a0<\/em>le\u00a0<strong>11 juin\u00a0<\/strong><strong>2014<\/strong>,\u00a0<a href=\"http:\/\/www.nature.com\/nature\/journal\/vaop\/ncurrent\/full\/nature13414.html\" target=\"_blank\"><span style=\"text-decoration: underline;\"><span>cliquez\u00a0ici<\/span><\/span><\/a>.<\/p>\n<p><span style=\"text-decoration: underline;\"><span><em><strong>Auteur \u00e0 contacter pour plus d\u2019informations<\/strong><\/em><\/span><\/span><\/p>\n<h4><a style=\"color: #1155cc;\" href=\"http:\/\/www.rom.on.ca\/en\/collections-research\/rom-staff\/jean-bernard-caron\" target=\"_blank\">Jean-Bernard Caron<\/a><span style=\"color: #000000;\">, Mus\u00e9e royal de l\u2019Ontario, Ontario<\/span><\/h4>\n","protected":false},"excerpt":{"rendered":"<p>De nouveaux fossiles de poissons d\u00e9couverts dans la formation de Marble Canyon au parc national du Canada Kootenay nous donnent une id\u00e9e de comment les m\u00e2choires ont \u00e9volu\u00e9 dans le temps. Ces fossiles d\u2019un poisson vieux de 5000 millions d\u2019ann\u00e9es font partie des plus vieux poissons jamais trouv\u00e9s. En regardant les barres branchiales associ\u00e9es aux [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1920,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[531],"tags":[235,1323,66,919,910,846],"class_list":["post-1924","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest-fr","tag-animaux","tag-biodiversite","tag-biologie","tag-evolution-fr","tag-genetique","tag-ontario-fr"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/06\/Caron1.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-v2","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/1924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/comments?post=1924"}],"version-history":[{"count":1,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/1924\/revisions"}],"predecessor-version":[{"id":1931,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/1924\/revisions\/1931"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/1920"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=1924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=1924"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=1924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}