Etymology
Advertisement

Permian

1841, "pertaining to the uppermost strata of the Paleozoic era," named by British geologist Sir Roderick Impey Murchison (1792-1871) for the region of Perm in northwestern Russia, where Murchison had studied rocks from this epoch. His original definition of the rock system was somewhat broader in each direction, chronologically, than the current one.

Advertisement
Advertisement
Definitions of Permian

Permian (n.)
from 280 million to 230 million years ago; reptiles;
Synonyms: Permian period
From wordnet.princeton.edu