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Erquitaia
''Erquitaia'' is a poorly known genus of prehistoric galeomorph shark whose fossils are found in rocks dating from the Maastrichtian stage. ==Classification== Originally, Erquitaia was thought to be a ray placed in the order Rajiformes, however it was subsequently moved to the shark super order Galeomorphii, which includes all modern sharks except the dogfish and their relatives.
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「Erquitaia」の詳細全文を読む
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