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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 Ephippioceratidae ： ウィキペディア英語版 Ephippioceratidae Ephippioceratidae is a family of clydonatilacean nautilids with shells as in the Liroceratidae but with sutures that have deep ventral and dorsal saddles. This group, which contains two genera, ''Ephippioceras'' and ''Megaglossoceras'', has a range from the Mississippian to the Lower Permian. ''Ephippioceras'', which has the full range of the family, has a broad, narrowly peaked ( V-shaped) ventral saddle and may have been derived from ''Liroceras'' early in the Mississippian. ''Megaglossoceras'' from the Pennsylvanian of North America, with its large, broadly arched, tongue-like ventral saddle is an obvious offshoot of ''Ephippioceras''. Both are subglobular and involute with a reniform whorl section. ''Ephippioceras'' has been found in North America, Europe, and China. ==''References''== *Bernhard Kummel, 1964. Nautiloidea -Nautilida; Treatise on Invertebrate Paleontology, Part K. Geol Soc of America and Univ of Kansas press, R.C. Moore (ed) 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「Ephippioceratidae」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.