Life in the Ordovician Sea of the Cincinnati Region
by
Richard Arnold Davis, Steven M Holland, David L Meyer
Language: English
Release Date: March 4, 2009
The region around Cincinnati, Ohio, is known throughout the world for the abundant and beautiful fossils found in limestones and shales that were deposited as sediments on the sea floor during the Ordovician Period, about 450 million years ago—some 250 million years before the dinosaurs lived. In...