翻訳と辞書 Words near each other ・ Protos (train) ・ Protos of Nonnendamm ・ Protosalanx ・ Protosalvinia ・ Protoscalidion ・ Protoscaphirhynchus ・ Protoschinia ・ Protoscholastic writing ・ Protoschrankia ・ Protoscience ・ Protoseudyra ・ ProtoShare ・ Protosialis casca ・ Protosilvanus ・ Protosiphon ・ Protosiren ・ Protosiren eothene ・ Protospacer adjacent motif ・ Protospatharios ・ Protosphaerion ・ Protosphaerion loreum ・ Protosphaerion pictum ・ Protosphaerion punctatum ・ Protosphaerion signatipenne ・ Protosphaerion variabile ・ Protosphagnum ・ Protosphargis ・ Protosphyraena ・ Protospinax ・ Protospongia 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 Protosiren ： ウィキペディア英語版 Protosiren ''Protosiren'' (taxonomic family Protosirenidae) is an extinct early genus of the order Sirenia. ''Protosiren'' existed throughout the Lutetian and Bartonian stages of the Middle Eocene. Its geographic distribution was intercontinental: fossils have been found in the United States (North Carolina), Egypt, France, Hungary, India, and Pakistan. Like the extant sirenians (manatee and dugong), ''Protosiren'' is thought to have fed on sea grasses as well as freshwater plants. Unlike extant sirenians, ''Protosiren'' had hind limbs. Although the limbs were well-developed, they were small and the sacroiliac joint was weak. Consequently, ''Protosiren'' is thought to have been mainly aquatic. It rarely ventured on land. ==See also== *Evolution of sirenians 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「Protosiren」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.