The geological period from 280 million to 310 million years ago; it was characterized by a warm climate and abundance of swampy land.
![]() |
![]() |
![]() | ![]() | ![]() | |||
|
|
|
![]() |
"Pennsylvanian" Quotes from Famous Books ![]() ![]() — The Atlantic Monthly, Volume 20, No. 122, December, 1867 • Various ![]() ![]() — Perley's Reminiscences, Vol. 1-2 - of Sixty Years in the National Metropolis • Benjamin Perley Poore |
Copyright © 2025 e-Free Translation.com |