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Gryphoceratops : ウィキペディア英語版 | Gryphoceratops
''Gryphoceratops'' is an extinct genus of leptoceratopsid ceratopsian dinosaur known from the Late Cretaceous of Alberta, southern Canada. ==Discovery== ''Gryphoceratops'' is known only from the holotype ROM 56635, a partial right dentary. The holotype was collected in the northwest corner of Dinosaur Provincial Park, from bonebed 55 of the Milk River Formation, dating to the late Santonian stage of the middle Late Cretaceous period, about 83.5 million years ago. Thus, ''Gryphoceratops'' represents the oldest known leptoceratopsid. However, a cladistic analysis found it to be one of the most advanced leptoceratopsids. It is also probably represents the smallest adult-sized ceratopsian known from North America.〔
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「Gryphoceratops」の詳細全文を読む
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