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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 Parachanna fayumensis ： ウィキペディア英語版 Parachanna fayumensis ''Parachanna fayumensis'', is an extinct member of the snakehead fish (Channidae) family known from fossil records only. It is the oldest member of this family known from Africa. It differs from ''Parachanna insignis'', ''P. africana'' and ''P. obscura'' by presence of prominent raised tooth patch with well-developed tooth sockets on a ventral surface of parasphenoid posterior end.〔 p. 1172〕 Several skull bones were found in the upper Eocene and lower Oligocene Jebel Qatrani Formation of the Fayum Depression, Egypt. The zoogeographic importance of this fossil material is that it suggests a Channid migration from India to Africa long before the Miocene.〔''Ibid'' p. 1176〕 ==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「Parachanna fayumensis」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.