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Hemithecella : ウィキペディア英語版 | Hemithecella
''Hemithecella'' is a problematic genus of Ordovician mollusc proposed by Stinchcomb and Darrough in 1995. ''Hemithecella'' belongs to what are informally known as multiplated molluscs; it is found in the late Cambrian of the Ozarks and the Lower Ordovician of the same region as well as in Minnesota and the southern Appalachian Mountains. ''Hemithecella'' has muscle scars identical to a monoplacophoran and not the musculature of a chiton to which some authors have suggested the multiplated molluscs belong. It is therefore classified in the Mattheviidae. ==References==
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「Hemithecella」の詳細全文を読む
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