| 释义 |
thecodontian, n. and a.|θiːkəˈdɒntɪən|
[f. mod.L. order name Thecodontia (R. Owen 1859, in Rep. Brit. Assoc. Adv. Sci. 163) + -an: cf. thecodont.]
= prec.
1974Nature 8 Mar. 168/2 The Saurischia and Ornithischia, are usually interpreted as independent derivatives of primitive thecondontian reptiles of the Triassic, but all known Triassic dinosaurs can be distinguished from typical thecodontians. 1979Ibid. 17 May. 234/2 Dinosaurs apparently lacked a fenestra pseudorotunda, as did the early thecodontians, eosuchians and captorhinomorphs. |