Une nouvelle espèce de dinosaure géant découverte en Patagonie

12 mai 2026

Rapporté par l'IA

Des chercheurs ont décrit un dinosaure sauropode jusqu'alors inconnu à partir de fossiles trouvés dans la province de Chubut, en Argentine. La créature, baptisée Bicharracosaurus dionidei, mesurait environ 20 mètres de long et vivait il y a environ 155 millions d'années.

Les scientifiques ont récupéré plus de 30 vertèbres, plusieurs côtes et une partie du bassin dans la formation rocheuse de Cañadón Calcáreo. Les ossements appartenaient à un animal adulte et présentent un mélange de caractéristiques observées à la fois chez les brachiosauridés et les diplodocidés. Alexandra Reutter, première auteure de l'étude et doctorante à la LMU, a dirigé l'analyse des restes désormais conservés au Museo Paleontológico Egidio Feruglio à Trelew.

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