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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Euclastes ： ウィキペディア英語版 Euclastes ''Euclastes'' is an extinct genus of sea turtle. It was first named by Edward Drinker Cope in 1867, and contains three species. ''E. hutchisoni'', was named in 2003 but has since been reassigned to the genus ''Pacifichelys'', while 'E. coahuilaensis' named in 2009 was reassigned as Mexichelys coahuilaensis in 2010〔(Euclastes coahuilaensis ) from the Paleobiology Database〕〔(Exibidos fósseis de tartarugas com 72 mi de anos )〕 ==Description== Unlike the sea turtles ''Toxochelys'' and ''Eochelone'', ''Euclastes'' has a secondary palate. However, the secondary palate of ''Euclastes'' is not as extensive as it is in ''Ctenochelys''. The genus can be distinguished by later sea turtles based on its broad, low skull; broad, flat palate; wide, flat dentary bone with an elongated symphysis; and low tomial ridge on the beak. The widened palate and dentaries give ''Eochelone'' wide, flat jaws suitable for crushing hard-shelled organisms.〔 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「Euclastes」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.