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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Camptostroma ： ウィキペディア英語版 Camptostroma ''Camptostroma roddyi'' is an extinct echinoderm from the ''Bonnia''-''Olenellus'' Zone the Early Cambrian Kinzers Formation near York and Lancaster, Southeastern Pennsylvania. In life, it would have resembled a cupcake, with the axial skeleton forming a star pattern on the upper surface. It was originally thought, on the basis of its medusoid shape, to be a jellyfish-like organism, but the fossils themselves clearly rule out the possibility of a gelatinous body - the stereom plates are clearly preserved and possess the calcitic cleavage pattern diagnostic of echinoderms.〔 It has been placed in a class of basal echinoderms, the Edrioasteroids. Other species have been described from time to time, but all have since been reassigned to other genera - and often different phyla.〔 ==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「Camptostroma」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.