单词 | hipparion |
释义 | hipparionn. Palaeontology. Any of the small three-toed equids of the extinct genus Hipparion, known from fossils found in Miocene to Pleistocene deposits. Also (in form Hipparion): the genus itself. ΘΚΠ the world > animals > mammals > group Ungulata (hoofed) > family Equidae (general equines) > [noun] > extinct or prehistoric equines opeagha1776 hyracotherium1840 hipparion1856 Protohippus1870 Miohippus1874 Pliohippus1874 Mesohippus1875 Orohippus1877 Eohippus1879 1856 Amer. Jrnl. Sci. & Arts 2nd Ser. 21 422 This second American species of Hipparion is established on specimens of five superior and one inferior molar teeth. 1878 J. Le Conte Elements Geol. iii. 509 The Protohippus of the United States and allied Hipparion of Europe, an animal still more horse like..in structure and size. 1934 J. G. Andersson Children of Yellow Earth v. 82 The resemblance of a Hipparion skull to that of a horse is sufficiently striking for the nature of the animal to be approximately clear. 1993 New Scientist 3 Apr. 47/1 Equus emerged about 12 million years ago but so did the three-toed hipparions. 2015 Wall St. Jrnl. (Electronic ed.) 23 Oct. In Tanzania,..our 3.6-million-year-old predecessors walked northward across a layer of muddy volcanic ash while Hipparion, an early type of horse, walked south from Europe into Africa. This entry has been updated (OED Third Edition, March 2018; most recently modified version published online March 2022). < |
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