翻訳と辞書 Words near each other ・ Parade (2009 film) ・ Paracraga amianta ・ Paracraga argentea ・ Paracraga canalicula ・ Paracraga halophora ・ Paracraga innocens ・ Paracraga necoda ・ Paracraga pulverina ・ Paracrangonyx ・ Paracraspedothrix ・ Paracretonia ・ Paracrias ・ Paracricotopus ・ Paracrine regulator ・ Paracrine signalling ・ Paracrinoidea ・ Paracriodion ・ Paracriodion modestum ・ Paracriodion romani ・ Paracristenes fergussoni ・ Paracristobalia ・ Paracristocentrus vadoni ・ Paracrocidura ・ Paracrocodylomorpha ・ Paracroesia ・ Paracroesia abievora ・ Paracroesia picevora ・ Paracroma ・ Paracroria ・ Paracrossochilus Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Paracrinoidea ： ウィキペディア英語版 Paracrinoidea Paracrinoidea is an extinct class of Crinozoan echinoderms closely related to, and superficially resembling sea lilies. They lived in shallow seas during the Early Ordovician through the Early Silurian. Paracrinoids are characterized by a mouth with two to five feeding arms arranged asymmetrically, or somewhat bisymmetrically. They have a U-shaped gut, and their anus is located next to the mouth. They have irregularly shaped bodies (theca), and a stem, similar to crinoids, and may have used the stem to attach themselves to a substrate, although some reconstructions show them partially buried in sediment.〔Fossil Invertebrates, 1987, Boardman, Richard S., Cheetham, Alan H., and Rowell, Albert J., editors, pp. 580-1. Blackwell Scientific Publications.〕 Only 13 to 15 genera are known. See List of echinodermata orders ==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「Paracrinoidea」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.