单词 eurypterid 释义 eurypterid Palont.|jrptrd|[ad. mod.L. Eurypterid pl., f. Eurypterus name of the typical genus, f. Gr. ὐ- broad + feather, wing.]One of a group of fossil Crustacea, abundant in the Silurian and Devonian periods, some of which attain...
