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''Plenocaris plena'' is a crustacean-like arthropod with a bivalved carapace, and is known from the Burgess shale and Chengjiang. It probably lacked pleopods, but had uropods. ==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「Plenocaris」の詳細全文を読む スポンサード リンク
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