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Wutingaspis
''Wutingaspis'' is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early part of the Botomian stage,〔 which lasted from approximately 524 to 518.5 million years ago. This faunal stage was part of the Cambrian Period. ==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「Wutingaspis」の詳細全文を読む
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