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Hercosestria : ウィキペディア英語版 | Hercosestria
''Hercosestria'' is an extinct genus of brachiopod from the Lower and Middle Permian.〔(【引用サイトリンク】title= Hercosestria cribrosa )〕 They were important reef-forming organisms because of their conical shapes, attaching spines, and gregarious habits. It is related to ''Richthofenia''. Species of the genus have been found in Texas (''H. cribrosa'' and ''H. laevis'') and Guatemala (''H. notialis''). == References ==
File:HercosestriaSmallCluster040111.jpg|''Hercosestria cribrosa'' Cooper & Grant 1969 (Roadian, Guadalupian, Middle Permian); Glass Mountains, Texas. File:HercosestriaPair040111.jpg|''Hercosestria cribrosa'' Cooper & Grant 1969 (Roadian, Guadalupian, Middle Permian); Glass Mountains, Texas.
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「Hercosestria」の詳細全文を読む
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