Permian
adjective
noting or pertaining to a period of the Paleozoic Era occurring from about 280 to 230 million years ago and characterized by a profusion of amphibian species.
pre-Permian
-
a word derived from
Permian.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
If the beds, a, be Carboniferous, and those at b Permian, then we should say the fault was post-Carboniferous or pre-Permian.
From Geology by James Geikie
