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Overosaurus
''Overosaurus'' is an extinct genus of sauropod dinosaurs, containing only a single species, ''Overosaurus paradasorum''. This species lived approximately 84 to 78 million years ago during the latter part of the Cretaceous Period in what is now Patagonia (in southern Argentina). ''Overosaurus paradasorum'' was relatively small compared with other sauropods from Patagonia, like the saltasaurids and other aeolosaurines. It was a ground-dwelling herbivore, that could grow up to long.
==Description==
''Overosaurus'' was first described and named by Rodolfo A. Coria, Leonardo S. Filippi, Luis M. Chiappe, Rodolfo García and Andrea B. Arcucci in 2013. This species is known solely from the holotype MAU-Pv-CO-439 which consists of a fully articulated vertebral series from the 10th cervical to the 20th caudal vertebra, the ribs of the last three cervical vertebrae, six right dorsal ribs (articulated with their respective dorsal vertebrae 2,3,4,5,8,9), five left dorsal ribs (articulated with their respective dorsal vertebrae 2,3,4,5,8), the proximal portions of dorsal ribs of both sides of dorsal vertebrae 9 and 10, a complete right ilium and a fragmented left ilium. Specifically the vertebral series includes the last four cervical vertebrae, ten dorsal vertebrae, six sacral vertebrae, and twenty caudal vertebrae. Its sacrum consists of six fused sacral vertebrae.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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