By Richard Arnold Davis,David L. Meyer
The area round Cincinnati, Ohio, is understood in the course of the international for the ample and lovely fossils present in limestones and shales that have been deposited as sediments at the sea flooring through the Ordovician interval, approximately 450 million years ago—some 250 million years earlier than the dinosaurs lived. In Ordovician time, the shallow sea that coated a lot of what's now the North American continent teemed with marine lifestyles. The Cincinnati quarter has yielded a number of the world's so much considerable and best-preserved fossils of invertebrate animals comparable to trilobites, bryozoans, brachiopods, molluscs, echinoderms, and graptolites. So recognized are the Ordovician fossils and rocks of the Cincinnati area that geologists use the time period "Cincinnatian" for strata of a similar age far and wide North the United States. This e-book synthesizes greater than one hundred fifty years of analysis in this fossil treasure-trove, describing and illustrating the fossils, the lifestyles conduct of the animals represented, their groups, and dwelling kin, in addition to the character of the rock strata within which they're came across and the environmental stipulations of the traditional sea.
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Additional resources for A Sea without Fish: Life in the Ordovician Sea of the Cincinnati Region (Life of the Past)
A Sea without Fish: Life in the Ordovician Sea of the Cincinnati Region (Life of the Past) by Richard Arnold Davis,David L. Meyer