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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 Macelognathus ： ウィキペディア英語版 Macelognathus ''Macelognathus'' is an extinct genus of sphenosuchian crocodile from the Late Jurassic. Originally it was believed be a theropod dinosaur. It lived in what is now Wyoming, in North America. The type species, ''Macelognathus vagans'', was described by Othniel Charles Marsh in the 1880s, and was later reclassified by Clark and Sues in 2002 when five new skeletons were discovered. It is considered an example of convergent evolution, due to the similarities to caenagnathid dinosaurs, with which it was not closely related. It is possibly a junior synonym of ''Hallopus victor''. ==References== * Ostrom, J.H. (1971). "On the systematic position of ''Macelognathus vagans''". ''Postilla'' 153:1-10 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「Macelognathus」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.