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Chama gryphoides : ウィキペディア英語版 | Chama gryphoides
''Chama gryphoides'' is a species of cemented saltwater clam, a marine bivalve mollusc in the family Chamidae, the jewel boxes. 〔 (WoRMS )〕 This species is known in the fossil record from the Miocene to the Quaternary (age range 20.43 to 0.781 million years ago.). Fossil shells of this species have been found in Italy, Spain, United Kingdom, Algeria, Austria, Bulgaria, Cyprus, France, Germany, Greece, Hungary, Moldova, Morocco, Poland, Romania and Slovakia.〔(Fossilworks ) 〕 ==Description== Shells of ''Chama gryphoides'' can reach a size of . These shells are thick, heavy, almost oval and inequivalve. The left valve is large and deep, while the right one is flatter. The radial ribs are quite irregular and arranged in concentric rows. 〔(Marine Bivalve Shells of the British Isles ) 〕
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「Chama gryphoides」の詳細全文を読む
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