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| image = | image_width = | image_caption = | regnum = Animalia | phylum = Mollusca | classis = Cephalopoda | subclassis = Ammonoidea | ordo = Ammonitida | superfamilia = Ancylocerataceae | familia = Crioceratitidae | genus = ''Crioceras'' | genus_authority = }} ''Crioceras'' is an extinct cephalopod genus belonging to the subclass Ammonoidea and included in the family Crioceratidae of the ammonitid superfamily Ancylocerataceae. ''Crioceras'' is considered by some to be a junior synonym of ''Crioceratites'' ''Crioceras ramoseptum'' is a heteromorph that comes from the Aptian of Dagestan.〔Lehmann, U. 1981. ''The ammonites: Their life and their world''. London: Cambridge University Press.〕 ==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「Crioceras (cephalopod)」の詳細全文を読む スポンサード リンク
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