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Panenka (genus) : ウィキペディア英語版 | Panenka (genus)
''Panenka'' is a genus of fossil saltwater clams, marine bivalve mollusks in the family Antipleuridae. Like most bivalves, these molluscs were suspension feeders. They lived in the Devonian Period (416,0 ± 2,8 e 359,2 ± 2,5 mya). ==Description== The valves of the shell of the species in the genus ''Panenka'' are relatively thin and somewhat elongated. Unlike most other bivalves, these species, as all the others in the subclass Cryptodonta, have no hinge teeth on their shells.
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「Panenka (genus)」の詳細全文を読む
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