Permian Strata
Preserved but no longer current.
The uppermost strata of the Palaeozoic series, consisting chiefly of jed sandstone an$ magnesian limestone, which rest on the carboniferous strata; so called by Sir Roderick Murchison (1841) from Perm, in Russia, where they are most distinctly developed.
Era: ca. 1898 (Victorian)
Sources & notes
Reproduced from Brewer’s Dictionary of Phrase and Fable (1898 edition, public domain; archive.org, retrieved 2026-07-31; OCR text, minor errors possible). Reflects the scholarship and attitudes of its era.
Common questions
What does “Permian Strata” mean?
The uppermost strata of the Palaeozoic series, consisting chiefly of jed sandstone an$ magnesian limestone, which rest on the carboniferous strata; so called by Sir Roderick Murchison (1841) from Perm, in Russia, where they are most distinctly developed.
Is “Permian Strata” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.