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''Ptychites'' is an extinct genus of cephalopods belonging to the family Ptychitidae. These nektonic carnivores lived during the Triassic period, from Anisian to Ladinian age.〔Sepkoski, Jack (Sepkoski's Online Genus Database – Cephalopoda )〕 ==Species== * ''Ptychites besnosovi'' Shevyrev 1995 * ''Ptychites densistriatus'' Bucher 1992 * ''Ptychites domatus'' Silberling and Tozer 1968 * ''Ptychites evansi'' Smith 1914 * ''Ptychites gradinarui'' Bucher 1992 * ''Ptychites guloensis'' Tozer 1994 * ''Ptychites hamatus'' Tozer 1994 * ''Ptychites miyagiensis'' Bando 1964 * ''Ptychites nipponicus'' Bando 1964 * ''Ptychites oppeli'' Mojsisovic 1882 * ''Ptychites opulentus'' Mojsisovics 1882 * ''Ptychites pseudoeuglyphus'' Konstantinov 1991 * ''Ptychites stachei'' Mojsisovics 1882 * ''Ptychites trochleaeformis'' Lindstroem 1865 * ''Ptychites wrighti'' McLearn 1946 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「Ptychites」の詳細全文を読む スポンサード リンク
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