(n.) The lowest of the three divisions of the Jurassic period; a
name given in England and Europe to a series of marine limestones
underlying the Oolite. See the Chart of Geology.
杰弗里校对
双语例句
Lyell and Dr. Dawson in the carboniferous strata of North America; but now land-shells have been found in the lias. 查尔斯·达尔文.物种起源.