PermianyoudaoicibaDictYouDict[Permian 词源字典]
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 rocks from this epoch are found.[Permian etymology, Permian origin, 英语词源]