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Paleocadmus
Paleocadmus is a genus of radula known only from the Mazon Creek biota. It is only known from isolated fossils around a centimetre in length, and a few mm wide (in one instance associated with a possible beak), but its morphology aligns it with the nautiloids, or perhaps the bactritoids or belemnoids. ==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「Paleocadmus」の詳細全文を読む
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