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''Dufrenoyia'' is an extinct genus of Cretaceous ammonites included in the family Parahoplitidae. These fast-moving nektonic carnivores lived in the Cretaceous period (Aptian age). 〔 Sepkoski, Jack (Sepkoski's Online Genus Database – Cephalopoda )〕 The type species of the genus is ''Ammonites dufrenoyi''. 〔 ==Species== 〔 * ''Dufrenoyia codazziana'' Karsten 1886 * ''Dufrenoyia dufrenoyi'' d'Orbigny 1840 * ''Dufrenoyia furcata'' Sowerby 1836 * ''Dufrenoyia justinae'' Hill 1893 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「Dufrenoyia」の詳細全文を読む スポンサード リンク
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