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Megistaspis
Megistaspis is a genus of trilobites in the order Asaphida, family ''Asaphidae''. They lived in the Ordovician period (488.3-443.7 million years ago), from the Upper Tremadocian age until the Lower Llanvim age. These arthropods were a low-level epifauna, fast-moving and detritivore. ==Distribution== Ordovician of Australia, China, Colombia, the Czech Republic, Iran, Norway, United States (Nevada); Arenig of Argentina, Bolivia, China, France, Norway, Sweden, United States (Montana); Dawan of China; Arenigian of Argentina
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「Megistaspis」の詳細全文を読む
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