{"id":8423,"date":"2022-09-05T18:39:00","date_gmt":"2022-09-05T18:39:00","guid":{"rendered":"https:\/\/www.africa-press.net\/guinee-conakry\/politique\/le-plus-vieux-dinosaure-dafrique-decouvert-au-zimbabwe"},"modified":"2022-09-05T18:39:00","modified_gmt":"2022-09-05T18:39:00","slug":"le-plus-vieux-dinosaure-dafrique-decouvert-au-zimbabwe","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/guinee-conakry\/homepage-french\/le-plus-vieux-dinosaure-dafrique-decouvert-au-zimbabwe","title":{"rendered":"Le plus vieux dinosaure d\u2019Afrique d\u00e9couvert au Zimbabwe"},"content":{"rendered":"

Africa-Press – Guin\u00e9e. <\/strong><\/span>Des scientifiques au Zimbabwe ont annonce\u0301, jeudi 1er septembre, la de\u0301couverte des restes du plus vieux dinosaure d\u2019Afrique, qui parcourait la Terre il y a environ 230 millions d\u2019anne\u0301es. Nomme\u0301 Mbiresaurus raathi, le dinosaure ne mesurait qu\u2019un me\u0300tre de haut environ, avec une longue queue et pesait jusqu\u2019a\u0300 30 kg, selon l\u2019e\u0301quipe internationale de pale\u0301ontologues qui a fait la de\u0301couverte. \u00ab Il courait sur deux pattes et avait une te\u0302te assez petite \u00bb, a de\u0301clare\u0301 jeudi a\u0300 l\u2019AFP Christopher Griffin, le scientifique qui a de\u0301terre\u0301 le premier os.<\/p>\n

Il s\u2019agit probablement d\u2019un omnivore qui se nourrissait de plantes, de petits animaux et d\u2019insectes. Le dinosaure appartient a\u0300 l\u2019espe\u0300ce Sauropodomorpha, la me\u0302me ligne\u0301e qui comprendra plus tard des dinosaures ge\u0301ants a\u0300 long cou, a de\u0301clare\u0301 Griffin, chercheur a\u0300 l\u2019Universite\u0301 de Yale. Le squelette a e\u0301te\u0301 retrouve\u0301 lors de deux expe\u0301ditions en 2017 et 2019 par une e\u0301quipe de chercheurs du Zimbabwe, de Zambie et des Etats-Unis.<\/p>\n

\u00ab J\u2019ai creuse\u0301 tout le fe\u0301mur et j\u2019ai su a\u0300 ce moment-la\u0300 qu\u2019il s\u2019agissait d\u2019un dinosaure et que je tenais le plus ancien fossile de dinosaure connu d\u2019Afrique \u00bb, a de\u0301clare\u0301 Griffin, 31 ans, qui e\u0301tait alors doctorant a\u0300 l\u2019Universite\u0301 Virginia Tech. Les de\u0301couvertes de son e\u0301quipe ont e\u0301te\u0301 publie\u0301es pour la premie\u0300re fois dans la revue Nature mercredi.<\/p>\n

\u00ab De\u0301couverte passionnante \u00bb<\/p>\n

Des restes de dinosaures de la me\u0302me e\u0301poque n\u2019avaient auparavant e\u0301te\u0301 trouve\u0301s qu\u2019en Ame\u0301rique du Sud et en Inde. Les pale\u0301ontologues ont choisi le Zimbabwe pour creuser apre\u0300s avoir calcule\u0301 que lorsque tous les continents e\u0301taient connecte\u0301s en une seule masse terrestre connue sous le nom de Pange\u0301e, il se trouvait a\u0300 peu pre\u0300s a\u0300 la me\u0302me latitude que les de\u0301couvertes ante\u0301rieures re\u0301alise\u0301es dans l\u2019Ame\u0301rique latine moderne.<\/p>\n

\u00ab Mbiresaurus raathi est remarquablement similaire a\u0300 certains dinosaures du me\u0302me a\u0302ge trouve\u0301s au Bre\u0301sil et en Argentine, ce qui renforce le fait que l\u2019Ame\u0301rique du Sud et l\u2019Afrique faisaient partie d\u2019une masse continentale continue \u00bb, a de\u0301clare\u0301 Max Langer de l\u2019Universite\u0301 de Sao Paulo au Bre\u0301sil. Le dinosaure porte le nom du district de Mbire, au nord-est du Zimbabwe, ou\u0300 le squelette a e\u0301te\u0301 trouve\u0301, et du pale\u0301ontologue Michael Raath, qui a signale\u0301 pour la premie\u0300re fois des fossiles dans cette re\u0301gion.<\/p>\n

D\u2019autres spe\u0301cimens ont e\u0301te\u0301 de\u0301couverts dans cette zone, et ont e\u0301te\u0301 tous de\u0301pose\u0301s au Muse\u0301e d\u2019histoire naturelle du Zimbabwe, dans la deuxie\u0300me plus grande ville du pays, a\u0300 Bulawayo.<\/p>\n

\u00ab La de\u0301couverte du Mbiresaurus est passionnante et spe\u0301ciale pour le Zimbabwe et l\u2019ensemble du champ pale\u0301ontologique, a de\u0301clare\u0301 le conservateur du muse\u0301e Michel Zondo. Le fait que le squelette de Mbiresaurus soit presque complet en fait un mate\u0301riau de re\u0301fe\u0301rence parfait pour d\u2019autres de\u0301couvertes. \u00bb<\/p>\n

Pour plus d’informations et d’analyses sur la Guin\u00e9e<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Guin\u00e9e. Des scientifiques au Zimbabwe ont annonce\u0301, jeudi 1er septembre, la de\u0301couverte des restes du plus vieux dinosaure d\u2019Afrique, qui parcourait la Terre il y a environ 230 millions d\u2019anne\u0301es. Nomme\u0301 Mbiresaurus raathi, le dinosaure ne mesurait qu\u2019un me\u0300tre de haut environ, avec une longue queue et pesait jusqu\u2019a\u0300 30 kg, selon l\u2019e\u0301quipe […]<\/p>\n","protected":false},"author":82,"featured_media":8422,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,11,56],"tags":[36,57,58],"class_list":["post-8423","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-homepage-french","category-to-homepage","tag-africa-press","tag-africa-press-guinee","tag-guinee"],"yoast_head":"\nLe plus vieux dinosaure d\u2019Afrique d\u00e9couvert au Zimbabwe - guinee Conakry<\/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.africa-press.net\/guinee-conakry\/politique\/le-plus-vieux-dinosaure-dafrique-decouvert-au-zimbabwe\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le plus vieux dinosaure d\u2019Afrique d\u00e9couvert au Zimbabwe\" \/>\n<meta property=\"og:description\" content=\"Africa-Press – Guin\u00e9e. Des scientifiques au Zimbabwe ont annonce\u0301, jeudi 1er septembre, la de\u0301couverte des restes du plus vieux dinosaure d\u2019Afrique, qui parcourait la Terre il y a environ 230 millions d\u2019anne\u0301es. 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