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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 Anodontosaurus ： ウィキペディア英語版 Anodontosaurus ''Anodontosaurus'' is an extinct genus of ankylosaurid dinosaurs within the subfamily Ankylosaurinae. It is known from the entire span of the Late Cretaceous Horseshoe Canyon Formation (mid Late Campanian to "middle" Maastrichtian stage, about 72.8-67 Ma ago) of southern Alberta, Canada. It contains a single species, ''Anodontosaurus lambei''. ==Discovery== ''Anodontosaurus'' was named by Charles Mortram Sternberg in 1928, based on holotype CMN 8530, a partially preserved skeleton including the skull, half ring, armor and other postcranial remains.〔C. M. Sternberg (1929) "A toothless armoured dinosaur from the Upper Cretaceous of Alberta." ''Canada Department of Mines Geological Survey Bulletin (Geological Series)'' 54(49):28-33〕 The badly crushed〔 skeleton was collected by Sternberg in 1916 from a Canadian Museum of Nature quarry, 8 miles southwest of Morrin.〔 It was collected from the upper part of the Lower Horseshoe Canyon Formation (unit 2), dating to the latest Campanian to the earliest Maastrichtian stage of the Late Cretaceous period, about 71-70.2 million years ago.〔 The generic name means "toothless lizard" in Ancient Greek. It was inspired by the fact that compression damage to the specimen had removed the teeth, at the same time shifting various flat round elements below the skull and on top of the left lower jaw, misleading Sternberg into assuming that large "trituration plates" had replaced the normal dentition.〔Vickaryous, M.K. and Russell, A.P., 2003, "A redescription of the skull of ''Euoplocephalus tutus'' (Archosauria: Ornithischia): a foundation for comparative and systematic studies of ankylosaurian dinosaurs", ''Zoological Journal of the Linnean Society'' 137: 157–186〕 The specific name, ''lambei'', honours Lawrence Morris Lambe, the Canadian geologist and palaeontologist from the Geological Survey of Canada where the holotype was reposited.〔 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「Anodontosaurus」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.