| 释义 |
dicynodont, n. and a. Palæont.|daɪˈsɪnədɒnt|
[mod. f. Gr. δι- two + κυν- dog + ὀδοντ- tooth.]
A fossil reptile characterized by the absence of all teeth except two long canines in the upper jaw. b. adj. Having this character.
The typical genus is Dicynodon, order Dicynodontia.
1854Owen in Circ. Sc. (c 1865) II. 97/2, I have called them ‘Dicynodonts’, from their dentition being reduced to one long and large canine tooth on each side of the upper jaw. 1876Page Adv. Text-Bk. Geol. xvi. 292 The Dicynodont reptiles from the red sandstones of South Africa.
Hence dicynoˈdontian a.
1873Huxley Critiques & Addresses ix. 213 The supposition that the Dinosaurian, Crocodilian, Dicynodontian, and Plesiosaurian types were suddenly created at the end of the Permian epoch may be dismissed. 1875Blake Zool. 162 The evidences of this most singular dicynodontian family of reptiles have hitherto been found only in South Africa. |