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''Cratia'' is an extinct frog which existed in Brazil during the lower Cretaceous period. It was named by Ana M. Báez, Geraldo J.B. Moura and Raúl O. Gómez in 2009, and the type species is ''Cratia gracilis''.〔 ==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「Cratia」の詳細全文を読む スポンサード リンク
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