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Cadomites
''Cadomites'' is an extinct ammonite genus from the superfamily Stephanocerataceae that lived during the Middle Jurassic (upper Bajocian – lower Callovian).〔 ==Description== ''Cadomites'' is directly descended from ''Stephanoceras'', with a similar collared and lipped aperture rim, but has denser, finer, sharper ribbing. The shell is discoidal, evolute, with a wide umbilicus. The suture is complex.
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「Cadomites」の詳細全文を読む
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