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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 Marmorerpeton ： ウィキペディア英語版 Marmorerpeton ''Marmorerpeton'' is an extinct genus of prehistoric stem-salamanders that lived in Europe during the Middle Jurassic.〔(【引用サイトリンク】title=Marmorerpeton )〕 It is among the earliest known salamanders, and is probably older than ''Karaurus''.〔(【引用サイトリンク】title=Fossil record )〕 It appears to have been neotenic, based on a few morphological characters and on the presence of calcified cartilage in the medulla of its humerus (see thumbnail). The size of its osteocytic lacunae suggests that it had a fairly large genome (C-value of about 36.7 pg, with a 95% confidence interval ranging from 30.2 to 44.2 pg), though not as large as that of obligatorily neotenic extant urodeles. This suggests that it may have been facultatively neotenic. ==See also== * List of prehistoric amphibians 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「Marmorerpeton」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.