| 释义 |
ornithischian, a. and n.|ɔːnɪˈθɪskɪən|
[f. mod.L. order name Ornithischia (H. G. Seeley 1887, in Proc. R. Soc. XLIII. 170), f. ornitho- + ischium: see -ia2, -ian.]
A. adj. Of, pertaining to, or designating an ornithischian.
B. n. A herbivorous dinosaur of the order Ornithischia, which includes forms having a pelvic structure resembling that of birds.
1901H. G. Seeley Dragons of Air xvii. 199 In some at least of the..Ornithischian Dinosaurs, there is no antorbital vacuity. 1933A. S. Romer Vertebrate Paleontol. ix. 195 It is probable that few ornithischians were entirely bipedal in habits. 1965E. H. Colbert Age of Reptiles i. 19 The ornithischian dinosaurs, in which the rod-like pubic bone of the pelvis had rotated backwardly to run parallel to the ischium,..were..of late Triassic origin. 1967New Scientist 16 Mar. 534/2 [In Lesotho] they also found a fair proportion of ornithischians, a group with an elongated bird-like pelvis. 1971Nature 12 Nov. 75/1 Before 1962 the genus Geranosaurus, which is represented by a single jaw, was the only undisputed Triassic ornithischian on record, but since that date knowledge of the earliest ornithischian dinosaurs has increased considerably. 1977Radio Times 17 Dec. 45 One of the liveliest of these disputes concerns the two great groups of dinosaurs, the saurischians (with hip-bones like those of lizards) and the ornithischians (in which they were more bird-like). |