翻訳と辞書 Words near each other ・ Orthetrum triangulare ・ Orthetrum trinacria ・ Orthetrum villosovittatum ・ Orthevielle ・ Orthez ・ Ortheziidae ・ Ortezzano ・ ORTF stereo technique ・ Ortgies Semi-Automatic Pistol ・ Orth ・ Orth an der Donau ・ Orth C. Galloway House ・ Orth Collins ・ Orth House ・ Orth, Minnesota ・ Orthacanthus ・ Orthacodontidae ・ Orthadenella ・ Orthaga ・ Orthaga achatina ・ Orthaga aenescens ・ Orthaga amphimelas ・ Orthaga asbolaea ・ Orthaga auroviridalis ・ Orthaga basalis ・ Orthaga bipartalis ・ Orthaga castanealis ・ Orthaga chionalis ・ Orthaga columbalis ・ Orthaga confusa Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Orthacanthus ： ウィキペディア英語版 Orthacanthus ''Orthacanthus'' is an extinct genus of fresh-water shark from a family of prehistoric sharks known as xenacanths. Members of the genus had a long spine growing from the back of their skull and a very long dorsal fin, which ran all along its back giving it an eel-like appearance. About 260 million years ago, ''Orthacanthus'' was the apex predator of freshwater swamps and bayous in Europe and North America. Its body reached nearly 10 feet (3 meters) in length and owned a peculiar set of double-fanged teeth. They first appeared about 400 million years ago in the Devonian, and became extinct just before the Mesozoic, about 225 million years ago. ==In Popular Culture== Orthacanthus was featured in the Shark Week special "Prehistoric Sharks", where it was labelled as ''the terror of permian swamps''. A set of jaws and teeth from Orthacanthus can be seen in the American Museum of Natural History in New York.〔Prehistoric Sharks"〕 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「Orthacanthus」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.