"Carboniferous period" Quotes from Famous Books
 ... inland seas of the Carboniferous period. Here, again, we must infer the successive stages of a history which we can read only in its results. Shut out from the ocean, these shallow sea-basins were gradually changed by the rains to fresh-water lakes; the lakes, in their turn, underwent ...
— Atlantic Monthly, Volume 11, Issue 67, May, 1863 • Various
... were laid upon it. These were later altered to hard slates by pressure and upfolded into mountains. During the later Silurian and the Devonian the area was land and suffered vast denudation. In the Carboniferous period it was lowered beneath the sea and received ...
— The Elements of Geology • William Harmon Norton |
