| 释义 |
eusuchian, n. and a. Zool.|juːˈsjuːkɪən|
[f. mod.L. Eusuchi-a (f. eu- + Gr. σοῦχ-ος crocodile) + -an.]
A. n. A crocodilian of the sub-order Eusuchia, whose members include all the extant alligators, true crocodiles (Crocodylidae), and the gavial.
B. adj. Belonging to or characteristic of this sub-order.
1875Q. Jrnl. Geol. Soc. XXXI. 429 The kind of change which would convert a Parasuchian Crocodile into a Mesosuchian, would, if continued, convert a Mesosuchian into a Eusuchian. 1898A. S. Woodward Outl. Vertebr. Palæont. 223 The only interest of the extinct Eusuchian Crocodilia consists in their geographical distribution, and in the intermediate..character of those dating back to the Lower Tertiary. 1955E. H. Colbert Evol. Vertebrates xvi. 221 In the eusuchian crocodiles the internal nares have moved far back in the palate so that they are completely enclosed by the pterygoid bones. 1958C. L. & M. A. Fenton Fossil Bk. xxv. 328 Except for a few alligators, all these modern crocodilians, or eusuchians, lack armor on their sides and bellies. 1971W. T. Neill Last of Ruling Reptiles viii. 109 By this interpretation, the eusuchian characters of the gharial would have evolved independently of the other families that make up the suborder Eusuchia. 1977A. Hallam Planet Earth 277 Though some marine forms survived until the early Cenozoic, most mesosuchians were replaced during the Cretaceous by their descendants the eusuchians. |