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Hyotissa semiplana : ウィキペディア英語版 | Hyotissa semiplana
''Hyotissa semiplana'' is an extinct species of large saltwater oysters, a fossil marine bivalve mollusk in the family Gryphaeidae, the foam oysters〔(Universal Biological Indexer ) 〕 ==Description== Fossil shells of ''Hyotissa semiplana'' can reach a diameter of about .〔(Kreidemuseum ) 〕 They have thick-walled valves, with rough, nodose surface. 〔 HALINA PUGACZEWSKA (THE UPPER CRETACEOUS OSTREIDAE FROM THE MIDDLE VISTULA REGION (POLAND )〕〔 Anne Mehlin Sørensena, Finn Surlyka, John W.M. Jag ( Adaptive morphologies and guild structure in a high-diversity bivalve faunafrom an early Campanian rocky shore, Ivö Klack (Sweden) ) 〕
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「Hyotissa semiplana」の詳細全文を読む
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