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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 Wannchampsus ： ウィキペディア英語版 Wannchampsus ''Wannchampsus'' ("Wann Langston, Jr.'s crocodile") is an extinct genus of paralligatorid neosuchian, close to but not a true crocodilian. It is known from fossils discovered in Lower Cretaceous rocks in north-central Texas, United States. ==Description and classification== ''Wannchampsus'' is based on SMU 76604, a partial skull and lower jaw. This fossil is attached by matrix to another partial skull of the same genus and species, SMU 76605. A handful of other fossils were found associated, mostly representing forelimbs and vertebrae. These fossils were found in rocks of the late Aptian-age Lower Cretaceous Twin Mountains Formation, southwest of Stephenville, in Comanche County, Texas; the site is otherwise known as the Proctor Lake dinosaur locality. ''Wannchampsus'' was described in 2014 by Thomas Adams. The type species is ''W. kirpachi'', in honor of Wesley Kirpach, "who was instrumental in the discovery and excavations of the type specimen". The skulls are described as "low and broad", and are small; SMU 76604 is estimated at long, and SMU 76605 is estimated at long. The lower jaw lacks external mandibular fenestrae, and the third tooth of the maxilla (main tooth-bearing bone of the upper jaw) and the fourth tooth of the dentary (tooth-bearing bone of the lower jaw) are enlarged. The teeth become broader and less conical going back toward the jaw joint, and the teeth at the anterior end of the lower jaw project forward (the anterior end of the upper jaw, composed of the premaxillas, is not known). Features of the skull and vertebrae indicate that the individuals are subadults. Adams performed a phylogenetic analysis and found ''Wannchampsus kirpachi'' to be a derived paralligatorid, closely related to the "Glen Rose form", which he regarded as belonging to the genus ''Wannchampsus''.〔 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「Wannchampsus」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.