翻訳と辞書 Words near each other ・ Nimitz ・ Nimitz Class (novel) ・ Nimbavali ・ Nimbaye River ・ Nimbeluk ・ Nimbeluk District ・ Nimbeluk Rural District ・ Nimbeolo ・ Nimber ・ Nimberg ・ Nimberga ・ Nimbhi jodhan ・ Nimbhore Budruk ・ Nimbi ・ Nimbia ・ Nimbia occlusa ・ Nimbic ・ Nimbin ・ Nimbin (chemical) ・ Nimbin Rocks ・ Nimbin, New South Wales ・ Nimbit ・ Nimbkar Agricultural Research Institute ・ Nimble ・ Nimble 30 ・ Nimble Nook ・ Nimble Quest ・ Nimble Storage ・ Nimble Streamer ・ Nimble-footed mouse 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 Nimbia occlusa ： ウィキペディア英語版 Nimbia occlusa ''Nimbia occlusa'' is a form of Ediacaran fossil shaped like a circular or oval disk, with a thick rim around the margin. Within the rim the fossil is usually flat, but may have a central nipple or dimple. These fossils were generally believed to be those of cnidarians, but they have since been reinterpreted as structures made by microbial colonies (Grazhdankin, see Ediacaran biota for references and discussion.). They can reach up to 6 cm in diameter, with a centimeter-thick rim. Some fossils are distorted. ''Nimbia'' occurs in numerous locations across a large range of time, which lends weight to theories that the fossil does not represent a single animal species. It occurs in the Twitya formation in the Mackenzie Mountains in Canada dated at 610 million years ago, near the end of the Marinoan glaciation, and in rocks in Kazakhstan. ''Aspidella'' also appears in these areas. ''Morania'' and'' Beltina'' carbonaceous film fossils in the Twitya formation are not considered to be animals. ''Nimbia''-like fossils have also been found in the Cambrian period. ==See Also== List of Ediacaran genera 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「Nimbia occlusa」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.