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Neospirifer
''Neospirifer'' is an extinct genus of articulate brachiopod fossils belonging to the family Trigonotretidae. These stationary epifaunal suspension feeders lived in the Carboniferous and Permian periods, from 360.7 to 252.3 Ma. Fossils of this genus have been found in the sediments of Europe, United States, Canada, China, Australia, India, Palistan Indonesia, Malaysia, Japan, Mexico, Argentina, Bolivia, Peru, Guatemala and Venezuela.〔 ==Description== ''Neospirifer'' species have shells with robust valves, a prominent sulcus and a characteristic ridge.〔(Encyc lopaedia Britannica )〕
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「Neospirifer」の詳細全文を読む
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