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Aucasaurus
''Aucasaurus'' was a genus of medium-sized theropod dinosaur from Argentina that lived during the Santonian stage of the Anacleto Formation. It was smaller than the related ''Carnotaurus'', although more derived in some ways, such as its extremely reduced arms and almost total lack of fingers. The type skeleton is complete to the thirteenth caudal vertebra, and so is relatively well understood, and is the most complete abelisaurid yet described. However, the skull is damaged, causing some paleontologists to speculate that it was involved in a fight prior to death. ==Description==
''Aucasaurus'' short, deep-snouted skull was not as short or as deep-snouted as that of ''Carnotaurus''. Also, instead of horns, it had a pair of low ridges above each eye.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Aucasaurus」の詳細全文を読む
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