| 单词 |
coryphodon |
| 释义 |
coryphodon|kɒˈrɪfəʊdɒn|
[f. Gr. κορυϕή top, summit + ὀδών, Ionic f. ὀδούς, ὀδόντος tooth.]
A fossil mammal of the genus of this name: so called because the cusps of their teeth are developed into points. Also attrib., as coryphodon bed, the lower division of the Lower Eocene in the Rocky mountain and Plateau region, in which coryphodon remains are found.
1846R. Owen Brit. Fossil Mamm. 304 The Tapir, which is the nearest existing analogue of the Coryphodon. 1848Q. Jrnl. Geol. Soc. 3 Nov. 126 The swelling of the Coryphodon's jaw. 1884Amer. Naturalist XVIII. 791 The foot structure of Coryphodon. 1895Dana Man. Geol. (ed. 4) 886 Coryphodon beds of Marsh. Ibid. 907 The Coryphodons of the Wasatch. 1957Encycl. Brit. XXII. 700/2 In all the taligrades the feet were short, especially so in Pantolambda. This feature becomes greatly emphasized in the later members of the order, the coryphodons and Dinocerata.
So coˈryphodont.
1880Dana Man. Geol. (ed. 3) 503 The Coryphodonts are of special interest, because of their prototype characters. 1895Ibid. (ed. 4) 928 Species of large, short-footed Ungulates, the Coryphodonts. 1910H. F. Osborn Age of Mammals ii. 138 We have observed the elimination of the phenacodonts, coryphodonts, palæonictids. |
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