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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 Keuppia ： ウィキペディア英語版 Keuppia ''Keuppia'' is an extinct genus of octopus. It consists of two species, ''Keuppia hyperbolaris'' and ''Keuppia levante'', both of which lived approximately 95 million years ago. Both species were found in fossilized form, which is very uncommon for extinct octopuses, as the soft tissue of dead octopuses almost always disintegrates before it has a chance to fossilize.〔(Rare fossil octopuses found ), MSNBC, March 18, 2009〕 These fossils, along with those of the genus ''Styletoctopus'', were found from the Cretaceous-age Hâqel and Hâdjoula localities in Lebanon. The presence of a gladius vestige in this genus shows a transition from squid to octopus in which the inner shell has divided in two in early forms to eventually be reduced to lateralized stylets, as can be seen in ''Styletoctopus''. ==See also== *2009 extinct fossil octopus discoveries 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「Keuppia」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.