Download e-book for iPad: A Sea without Fish: Life in the Ordovician Sea of the by Richard Arnold Davis,David L. Meyer

By Richard Arnold Davis,David L. Meyer

ISBN-10: 0253351987

ISBN-13: 9780253351982

The quarter round Cincinnati, Ohio, is understood in the course of the international for the considerable and gorgeous fossils present in limestones and shales that have been deposited as sediments at the sea ground throughout the Ordovician interval, approximately 450 million years ago—some 250 million years ahead of the dinosaurs lived. In Ordovician time, the shallow sea that coated a lot of what's now the North American continent teemed with marine existence. The Cincinnati sector has yielded the various world's such a lot ample and best-preserved fossils of invertebrate animals akin to trilobites, bryozoans, brachiopods, molluscs, echinoderms, and graptolites. So recognized are the Ordovician fossils and rocks of the Cincinnati quarter that geologists use the time period "Cincinnatian" for strata of a similar age far and wide North the USA. This booklet synthesizes greater than a hundred and fifty years of study in this fossil treasure-trove, describing and illustrating the fossils, the existence conduct of the animals represented, their groups, and dwelling relations, in addition to the character of the rock strata during which they're chanced on and the environmental stipulations of the traditional sea.

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A Sea without Fish: Life in the Ordovician Sea of the Cincinnati Region (Life of the Past) by Richard Arnold Davis,David L. Meyer

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