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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 Markuelia ： ウィキペディア英語版 Markuelia ''Markuelia'' is a genus of fossil worm-like bilaterian animals allied to Ecdysozoa and known from strata of Lower Cambrian to Lower Ordovician age containing five species. An advanced X-ray imaging technique called X-ray tomographic microscopy has been applied to splendidly preserved, uncrushed ''Markuelia'' fossils found in Hunan province in southern China and in eastern Siberia. When details in features smaller than one micrometre across can be observed, these fossils are seen to represent many developmental stages, from the first cell divisions to the time of hatching; therefore they offer a unique opportunity to study the development of Lower Cambrian animals. The features observed indicate that the genus had a mouth surrounded by a ring of teeth (suggesting a carnivorous diet), an alimentary canal, and an anus. However the characters preserved are inconclusive regarding the genus' taxonomic affinity; it can at best be placed in the scalidophoran total group, since it is currently impossible to ally it with the Priapulids or other scalidophora. == Further reading == 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「Markuelia」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.