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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 Megistotherium ： ウィキペディア英語版 Megistotherium ''Megistotherium'' (from Greek, ''megistos'' "greatest" + ''therion'' "beast" and ''osteon'' 'bone' + ''thlaston'' 'crushed, bruised' with ''-es'' being an agent noun: 'bone-crusher') is an extinct genus of hyaenodontid, the only known species of which is ''Megistotherium osteothlastes''. It is most likely a junior synonym of ''Hyainailouros sulzeri'' ==Description== ''Megistotherium osteothlastes'' was a large hyaenodontid afrothere that lived during the early Miocene epoch some . Its remains have been found in the Ngorora and Muruyur Formations of Kenya, Egypt,〔Morlo, M., Miller, E.R., and El-Barkooky, A.N. 2007. Creodonta and Carnivora from Wadi Moghra, Egypt. Journal of Vertebrate Paleontology 27: 145–159. 〕 Namibia, Uganda〔MORALES, J. and M. PICKFORD. (2008). "Creodonts and carnivores from the Middle Miocene Muruyur Formation at Kipsaraman and Cheparawa, Baringo District, Kenya." ''Comptes Rendus Palevol'' 7 (8): 487-497 〕 and Libya. Named by Robert Savage in 1973,〔 it's one of the largest hyaenodontids known and like the other hyaenodontids it had an enormous skull relative to its body, up to in length〔 and a body mass estimated at . The carnassial teeth of ''Megistotherium'' (like those of other hyaenodontids) were the upper first molars, and overlapped with their lower molar counterparts like scissors to form a formidable and powerful shearing action. The land that is now the Sahara desert was much more fertile in the Miocene. A considerable amount of it was grassland and rainfall was plentiful. Lakes and ponds provided water for large fauna, which provided ''Megistotherium'' and other predators with an ample supply of prey. Large hyaenodontids like this one could have originally evolved as specialized predators or scavengers of large African herbivores. Gomphothere bones have been found with its fossils, indicating that ''Megistotherium'' may have hunted them for food. 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「Megistotherium」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.