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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 Fieldia (animal) ： ウィキペディア英語版 Fieldia (animal) ''Fieldia'' is a genus of worm known from the Cambrian Burgess Shale, and assigned to the Priapulids. It was originally interpreted as an arthropod; its trunk bears a dense covering of spines, and its proboscis is small.〔 It fed on sea-floor mud, evidenced by the frequent presence of sediments preserved in its gut.〔 Along with the other Cambrian priapulids ''Ottoia'', ''Selkirkia, Louisella'', ''Ancalagon'', ''Scolecofurca'', and ''Lecythioscopa'', the organism was originally classified into a clade termed the archaeopriapulida, a stem group to the Priapulids proper. However, the morphological similarity of these organisms to their modern cousins is remarkable, especially for the Burgess Shale, and their similarity to the modern genus ''Maccabeus'' suggests that they are in the Seticoronaria stem group, and thus are true crown-group priapulids.〔 A phylogenetic analysis does not provide a great deal of resolution to the relationships between these basal worms. ==External links== * 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「Fieldia (animal)」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.