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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 Polyptychodon ： ウィキペディア英語版 Polyptychodon ''Polyptychodon'' (meaning 'shaped fin tooth') is an extinct genus of sauropterygian reptile belonging to the family Pliosauridae that lived during the Cretaceous. Its fossils have been found in Europe and North America. The type species, ''P. interruptus'' is known from Albian stage deposits from England.〔〔Buffetaut E, Colleté C, Dubus B, Petit J-L. 2005. The "sauropod" from the Albian of Mesnil-Saint-Père (Aube, France): a pliosaur, not a dinosaur. ''Association Géologique Auboise, Bulletin Annuel, Sainte-Savine'' 26: 3-8.〕 Greensand Formation pliosaur teeth and vertebrae from England and eastern France have long been placed within this poorly known genus.〔 Comparison between French Albian-aged isolated vertebrae and ''Kronosaurus'' suggests a size of approximately 7 m for ''Polyptychodon''.〔 One species is known from North America (''P. hudsoni'', holotytpe = SMU 60313). It is known from Turonian stage rocks of Dallas, Texas.〔 The holotype for ''P. hudsoni'' was discovered in the early 1960s, in west Dallas near Chalk Hill Road. Another specimen of "Polyptychodon" was found during excavation related to construction of Dallas/Fort Worth International Airport.〔"(Plesiosaur Unearthed During Preliminary Excavation for the Dallas-Fort Worth International Airport )"〕 ==See also== * Timeline of plesiosaur research 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「Polyptychodon」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.