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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 Artiocetus ： ウィキペディア英語版 Artiocetus ''Artiocetus'' is an extinct genus of early whales belonging to the family Protocetidae. It was a close relative to ''Rodhocetus'' and its tarsals indicate it resembled an artiodactyl. == Etymology == ''Artiocetus''' name arises from a combination of cetus and artiodactyl, as this fossil was the first to show that early whales possessed artiodactyl-like ankles. ''Artiocetus'' belongs to the order Cetacea, which includes whales, dolphins and porpoises. Cetus is a Latinized Greek word literally meaning "sea monster" and is used in biological names to mean "whale". It comes from Ancient Greek κῆτος (kētos), in reference to the sea monster goddess Ceto, daughter of Gaia and Pontus, and said to resemble a gigantic whale or fish. Artiodactyla refers to the mammal order of even-toed ungulates the group containing cattle, deer, camels, giraffes, antelope, goats, sheep, pigs and hippopotamuses. If the animal has even number of toes, the weight is borne equally by the third and fourth toe. The shape of the astragalus is another key feature which has a double-pulley structure in artiodactyls, giving the foot greater flexibility. 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「Artiocetus」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.