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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 Culebrasuchus ： ウィキペディア英語版 Culebrasuchus ''Culebrasuchus'' is an extinct genus of caiman (a type of crocodilian) known from the early Miocene of the Panama Canal Zone of Panama. It contains a single species, ''Culebrasuchus mesoamericanus''. ==Discovery== ''Culebrasuchus'' was first described and named by Alexander K. Hastings, Jonathan I. Bloch, Carlos A. Jaramillo, Aldo F. Rincona and Bruce J. Macfadden in 2013 based on a single holotype skull and three neck vertebrae from the Culebra Formation. ''Culebrasuchus'' is thought to be the most basal member of Caimaninae, meaning that it represents the earliest radiation of caimans in the Americas. The ancestor of ''Culebrasuchus'' likely lived farther north, perhaps in what is now southern Mexico, because before the Miocene most of Panama was underwater. The movement of ''Culebrasuchus'' into the Panama Canal Zone was an early part of the Great American Interchange in which animals dispersed between North and South America across the newly formed Isthmus of Panama (although during the Early Miocene it had not yet formed, with 20 km of ocean still separating the continents). However, ''Culebrasuchus'' was not the earliest caimanine; ''Orthogenysuchus'' and ''Tsoabichi'' are known from the Eocene of North America and ''Eocaiman'' is known from the Eocene of South America, indicating that caimanines were dispersing between the continents across large expanses of ocean long before the isthmus formed.〔 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「Culebrasuchus」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.