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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 Arapaimidae ： ウィキペディア英語版 Arapaimidae Arapaimidae is a family of freshwater osteoglossiform fishes known as the bonytongues. This family includes the arapaimas of the Amazon and Essequibo basins in South America, and the African arowana from Africa.〔 This family is sometimes considered to be a part of the arowana family, Osteoglossidae. A genetic study shows that the Arapaimidae (arapaimas and African arowana) diverged from Osteoglossidae about 220 million years ago, during the Late Triassic. Within Osteoglossidae, the lineage leading to the South American ''Osteoglossum'' arowanas diverged about 170 million years ago, during the Middle Jurassic. The Asian and Australian arowanas in the genus ''Scleropages'' separated about 140 million years ago, during the Early Cretaceous. ==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「Arapaimidae」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.