单词 | megalonyx |
释义 | Megalonyxn. Palaeontology. A ground sloth of the genus Megalonyx (family Megalonychidae), known from fossil remains found in Pliocene and Pleistocene deposits in North America. Also: the genus itself. ΘΚΠ the world > animals > mammals > order Edentata > [noun] > family Bradypodidae (sloth) > extinct sloths sloth1791 Megalonyx1796 gravigrade1847 ground sloth1860 1796 T. Jefferson Let. 3 July in Papers (2002) XXIX. 139 Its bulk entitles it to give to our animal the name of the Great-claw, or Megalonyx. 1797 T. Jefferson Let. 15 Aug. in Writings (1903) IX. 416 The Megalonyx, as we [sc. (prob.) the American Philosophical Society] have named him. 1813 Ld. Byron Jrnl. 5 Dec. in Lett. & Jrnls. (1974) III. 231 The Mammoth and Megalonyx. 1839 Penny Cycl. XV. 73/1 The Megalonyxes were provided with a tail. 1887 Amer. Naturalist 21 459 The Megalonyx Beds. 1903 A. Geikie Text-bk. Geol. (ed. 4) II. 1299 These [lacustrine clays and sands] have yielded the carnivores Canimartes, Borophagus, and Felis; the edentate Megalonyx, [etc.]. 1957 Encycl. Brit. VII. 951/2 Megalonyx, with the skull a foot or more in length..is distinguished from the preceding genera by having the first of the five upper teeth large, tusk-like and isolated. 1990 D. E. G. Briggs & P. R. Crowther Palaeobiol. ii. 207 North American species that become extinct, such as several ground sloths (Glossotherium, Eremotherium, Nothrotheriops, and Megalonyx). This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022). < n.1796 |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。