Paleozoic

[,pæli:əu'zəuik;-,pei-]

解释:

(noun.) from 544 million to about 230 million years ago.

(adj.) of or relating to or denoting the Paleozoic era .

校对:罗伯特--From WordNet

解释:

(a.) Of or pertaining to, or designating, the older division of geological time during which life is known to have existed, including the Silurian, Devonian, and Carboniferous ages, and also to the life or rocks of those ages. See Chart of Geology.

塞西尔编辑