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Acristatherium : ウィキペディア英語版 | Acristatherium ''Acristatherium yanensis'' is an extinct basal eutherian from the Early Cretaceous (early Aptian, about ) Lujiatun Bed of the Yixian Formation. It was described on the basis of a single specimen (holotype) from Beipiao, Liaoning, China, by Yaoming Hu, Jin Meng, Chuankui Li, and Yuanqing Wang in 2010.〔 The specimen comprises a partial skull, long. It appears to possess a vestige of a septomaxilla, a feature only otherwise seen in nonmammalian therapsids.〔 ==References==
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「Acristatherium」の詳細全文を読む
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