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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 Physogaleus ： ウィキペディア英語版 Physogaleus ''Physogaleus'' is a small prehistoric shark that lived from the Oligocene into the Miocene.〔http://www.fossilguy.com/gallery/vert/fish-shark/galeocerdo/galeocerdo.htm〕 ==Description== ''Physogaleus'' are only known from their fossil teeth and isolated vertebra. ''Physogaleus'' has teeth similar to the modern tiger shark, but smaller. It was actually thought to be a type of tiger shark (Galeocerdo). However, due to the many smaller differences in the shark teeth, it has been moved to its own genera. ''Physogaleus'' teeth are smaller than the tiger sharks, they also do not have the heavy serrations, and are slender and twisted toward the crown. This indicates they probably had a diet of bony fish, similar to the living sand-tiger shark.〔http://www.fossilguy.com/gallery/vert/fish-shark/galeocerdo/galeocerdo.htm〕 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「Physogaleus」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.