{"id":9213,"date":"2024-07-29T10:00:00","date_gmt":"2024-07-29T08:00:00","guid":{"rendered":"https:\/\/www.triopsgalaxy.de\/haben-dinos-unterirdisch-gelebt\/"},"modified":"2024-07-29T11:01:54","modified_gmt":"2024-07-29T09:01:54","slug":"les-dinosaures-vivaient-sous-terre","status":"publish","type":"post","link":"https:\/\/www.triopsgalaxy.de\/fr\/les-dinosaures-vivaient-sous-terre\/","title":{"rendered":"Pal\u00e9ontologie : d\u00e9couverte aux \u00c9tats-Unis &#8211; les dinosaures vivaient-ils sous terre ?"},"content":{"rendered":"\n<p>Des petits planeurs aux grands herbivores, les dinosaures avaient des modes de vie extr\u00eamement vari\u00e9s. Ces fascinantes cr\u00e9atures de la pr\u00e9histoire pourraient toutefois avoir v\u00e9cu diff\u00e9remment de ce que l&rsquo;on pensait jusqu&rsquo;\u00e0 pr\u00e9sent. Une nouvelle d\u00e9couverte vient \u00e9clairer la situation. Des chercheurs de l&rsquo;Utah ont trouv\u00e9 des indices montrant que certains dinosaures avaient peut-\u00eatre un mode de vie souterrain.<\/p>\n\n\n\n<p>Il y a 99 millions d&rsquo;ann\u00e9es, une petite esp\u00e8ce de dinosaure herbivore, Fona herzogae, vivait probablement sous terre. Cette esp\u00e8ce pr\u00e9sente plusieurs caract\u00e9ristiques qui indiquent qu&rsquo;elle se d\u00e9place en creusant. Elle avait des pieds agrandis et des pattes arri\u00e8re puissantes avec des muscles bien d\u00e9velopp\u00e9s, comme les rats kangourous modernes qui utilisent principalement leurs pattes arri\u00e8re pour creuser. De plus, la structure de son tronc, avec des os de la hanche et des vert\u00e8bres sacr\u00e9es fusionn\u00e9s, indique une adaptation aux forces de torsion importantes lors du creusement.<\/p>\n\n\n\n<p>Haviv Avrahami du Museum of Natural Sciences de Caroline du Nord et son \u00e9quipe ont d\u00e9couvert les restes de cette nouvelle esp\u00e8ce de dinosaure dans la formation rocheuse de Mussentuchit. Avrahami explique : \u00ab Dans les plaines fluviales comme la Mussentuchite, les petits os \u00e9taient souvent rapidement dispers\u00e9s, rong\u00e9s par les charognards ou en train de pourrir. Mais ces fossiles \u00e9taient souvent complets et les os \u00e9taient g\u00e9n\u00e9ralement encore dans leur position d&rsquo;origine \u00bb. Les fossiles \u00e9tonnamment bien conserv\u00e9s provenant d&rsquo;une ancienne zone humide indiquent que les animaux sont peut-\u00eatre d\u00e9j\u00e0 morts sous terre. La d\u00e9couverte de l&rsquo;esp\u00e8ce Fona herzogae le montre : certaines esp\u00e8ces de dinosaures ont v\u00e9cu sous la surface. Il est possible qu&rsquo;ils se soient cach\u00e9s dans des grottes pour \u00e9chapper \u00e0 leurs pr\u00e9dateurs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Des petits planeurs aux grands herbivores, les dinosaures avaient des modes de vie extr\u00eamement vari\u00e9s. Ces fascinantes cr\u00e9atures de la pr\u00e9histoire pourraient toutefois avoir v\u00e9cu diff\u00e9remment de ce que l&rsquo;on pensait jusqu&rsquo;\u00e0 pr\u00e9sent. Une nouvelle d\u00e9couverte vient \u00e9clairer la situation. Des chercheurs de l&rsquo;Utah ont trouv\u00e9 des indices montrant que certains dinosaures avaient peut-\u00eatre un [&#8230;]\n","protected":false},"author":2,"featured_media":6580,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[240],"tags":[],"class_list":["post-9213","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-fr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pal\u00e9ontologie : nouvelle d\u00e9couverte aux Etats-Unis - Triops Galaxy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.triopsgalaxy.de\/fr\/les-dinosaures-vivaient-sous-terre\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pal\u00e9ontologie : nouvelle d\u00e9couverte aux Etats-Unis - Triops Galaxy\" \/>\n<meta property=\"og:description\" content=\"Des petits planeurs aux grands herbivores, les dinosaures avaient des modes de vie extr\u00eamement vari\u00e9s. Ces fascinantes cr\u00e9atures de la pr\u00e9histoire pourraient toutefois avoir v\u00e9cu diff\u00e9remment de ce que l&rsquo;on pensait jusqu&rsquo;\u00e0 pr\u00e9sent. Une nouvelle d\u00e9couverte vient \u00e9clairer la situation. 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