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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 Megalonyx ： ウィキペディア英語版 Megalonyx ''Megalonyx'' (Greek, "large claw") is an extinct genus of giant ground sloths of the family Megalonychidae endemic to North America from the Hemphillian of the Late Miocene through to the Rancholabrean of the Pleistocene, living from ~10.3 Mya—11,000 years ago, existing for approximately . Type species, ''M. jeffersonii'', measured about 3 m (9.8 ft) and weighted up to 1000 kilograms.〔http://library.sandiegozoo.org/factsheets/_extinct/sloth_extinct/extinct_sloth.htm〕 ==Description== ''Megalonyx'' was a large, heavily built animal about 9.8 feet (3 m) long. Its maximum weight is estimated at 1,000 kg (2,205 lb).〔 This is medium-sized among the giant ground sloths. Like other ground sloths it had a blunt snout, massive jaw, and large peg-like teeth. The hind limbs were plantigrade (flat-footed) and this, along with its stout tail, allowed it to rear up into a semi-erect position to feed on tree leaves. The forelimbs had three highly developed claws that were probably used to strip leaves and tear off branches. 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「Megalonyx」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.