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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 Averostra ： ウィキペディア英語版 Averostra Averostra, or "bird snouts", is a clade that includes most theropod dinosaurs that have a promaxillary fenestra (''fenestra promaxillaris''), an extra opening in the front outer side of the maxilla, the bone that makes up the upper jaw. ==Definition== Averostra was named by Gregory S. Paul in 2002 as an apomorphy-based clade defined as the group including the Dromaeosauridae and Avepoda with (an ancestor with) a promaxillary fenestra.〔Paul, 2002. Dinosaurs of the Air. The Johns Hopkins University Press, Baltimore and London. 460 pp.〕 It was later re-defined by Martin Ezcurra and Gilles Cuny in 2007 as a node-based clade containing ''Ceratosaurus nasicornis'', ''Allosaurus fragilis'', their last common ancestor and all its descendants.〔Ezcurra M.D. and Cuny, G., 2007. The coelophysoid ''Lophostropheus airelensis'', gen. nov.: A review of the systematics of ''"Liliensternus" airelensis'' from the Triassic-Jurassic outcrops of Normandy (France). Journal of Vertebrate Paleontology. 27(1), 73-86〕 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「Averostra」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.