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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 Migmacastor ： ウィキペディア英語版 Migmacastor ''Migmacastor'' is an extinct member of the beaver family, Castoridae, known from a single species, ''Migmacastor procumbodens''. Only a single specimen has been reported, a skull from the late Oligocene or early Miocene of Nebraska. Features of the incisor teeth of ''Migmacastor'' indicate they were used to dig. Other extinct beavers, including the better-known ''Palaeocastor'', were also fossorial (digging), but ''Migmacastor'' may have become a burrower independently.〔Korth, William W.; Rybczynski, Natalia (2003), "A new, unusual castorid (Rodentia) from the earliest Miocene of Nebraska", Journal of Vertebrate Paleontology 23 (3): 667–675, doi:10.1671/2371〕 ==References== 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「Migmacastor」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.