The geological period from 280 million to 310 million years ago; it was characterized by a warm climate and abundance of swampy land.
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"Pennsylvanian" Quotes from Famous Books — The Old Northwest - A Chronicle of the Ohio Valley and Beyond, Volume 19 In - The Chronicles Of America Series • Frederic Austin Ogg — The Philadelphia Magazines and their Contributors 1741-1850 • Albert Smyth — Woman's Work in the Civil War - A Record of Heroism, Patriotism, and Patience • Linus Pierpont Brockett — Life And Adventures Of Martin Chuzzlewit • Charles Dickens — Memoirs • Charles Godfrey Leland |
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