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Belosaepia
''Belosaepia'', occasionally incorrectly ''Belosepia'',〔e.g. 〕 is a genus of cuttlefish-like cephalopod known from the Eocene. ==Morphology== ''Belosaepia'' reached in length and across; it had a large siphuncle that penetrated its oblique septa.〔 The shell was endogastrically coiled.〔 It had a small belemnite-like guard, which took the form of a short horn at the posterior end of the shell;〔 usually, only a small portion of the shell closest to the guard is preserved. The chambers in the shell closely resemble those present in the cuttlebone of modern cuttlefish.〔
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「Belosaepia」の詳細全文を読む
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