The Great Ordovician Biodiversification Event - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Great Ordovician Biodiversification Event write by Barry D. Webby. This book was released on 2004-04-14. The Great Ordovician Biodiversification Event available in PDF, EPUB and Kindle. Two of the greatest evolutionary events in the history of life on Earth occurred during Early Paleozoic time. The first was the Cambrian explosion of skeletonized marine animals about 540 million years ago. The second was the "Great Ordovician Biodiversification Event," which is the focus of this book. During the 46-million-year Ordovician Period (489–443 m.y.), a bewildering array of adaptive radiations of "Paleozoic- and Modern-type" biotas appeared in marine habitats, the first animals (arthropods) walked on land, and the first non-vascular bryophyte-like plants (based on their cryptospore record) colonized terrestrial areas with damp environments. This book represents a compilation by a large team of Ordovician specialists from around the world, who have enthusiastically cooperated to produce this first globally orientated, internationally sponsored IGCP (International Geological Correlation Program) project on Ordovician biotas. The major part is an assembly of genus- and species-level diversity data for the many Ordovician fossil groups. The book also presents an evaluation of how each group diversified through Ordovician time, with assessments of patterns of change and rates of origination and extinction. As such, it will become the standard work and data source for biotic studies on the Ordovician Period.
Earth History and Palaeogeography
Earth History and Palaeogeography - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Earth History and Palaeogeography write by Trond H. Torsvik. This book was released on 2017. Earth History and Palaeogeography available in PDF, EPUB and Kindle. This book provides a complete Phanerozoic story of palaeogeography, using new and detailed full-colour maps, to link surface and deep-Earth processes.
Evolution and Development of Fishes
Evolution and Development of Fishes - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Evolution and Development of Fishes write by Zerina Johanson. This book was released on 2019-01-10. Evolution and Development of Fishes available in PDF, EPUB and Kindle. World-class palaeontologists and biologists summarise the state-of-the-art on fish evolution and development.
Early Palaeozoic Biogeography and Palaeogeography
Early Palaeozoic Biogeography and Palaeogeography - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Early Palaeozoic Biogeography and Palaeogeography write by D.A.T. Harper. This book was released on 2014-01-27. Early Palaeozoic Biogeography and Palaeogeography available in PDF, EPUB and Kindle. The Early Palaeozoic was a critical interval in the evolution of marine life on our planet. Through a window of some 120 million years, the Cambrian Explosion, Great Ordovician Biodiversification Event, End Ordovician Extinction and the subsequent Silurian Recovery established a steep trajectory of increasing marine biodiversity that started in the Late Proterozoic and continued into the Devonian. Biogeography is a key property of virtually all organisms; their distributional ranges, mapped out on a mosaic of changing palaeogeography, have played important roles in modulating the diversity and evolution of marine life. This Memoir first introduces the content, some of the concepts involved in describing and interpreting palaeobiogeography, and the changing Early Palaeozoic geography is illustrated through a series of time slices. The subsequent 26 chapters, compiled by some 130 authors from over 20 countries, describe and analyse distributional and in many cases diversity data for all the major biotic groups plotted on current palaeogeographic maps. Nearly a quarter of a century after the publication of the ‘Green Book’ (Geological Society, London, Memoir12, edited by McKerrow and Scotese), improved stratigraphic and taxonomic data together with more accurate, digitized palaeogeographic maps, have confirmed the central role of palaeobiogeography in understanding the evolution of Early Palaeozoic ecosystems and their biotas.
A Sea without Fish
A Sea without Fish - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A Sea without Fish write by David L. Meyer. This book was released on 2009-03-04. A Sea without Fish available in PDF, EPUB and Kindle. A “superbly written, richly illustrated” guide to the animals who lived 450 million years ago—in the fossil-rich area where Cincinnati, Ohio now stands (Rocks & Minerals). 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 Ordovician time, the shallow sea that covered much of what is now the North American continent teemed with marine life. The Cincinnati area has yielded some of the world’s most abundant and best-preserved fossils of invertebrate animals such as trilobites, bryozoans, brachiopods, molluscs, echinoderms, and graptolites. So famous are the Ordovician fossils and rocks of the Cincinnati region that geologists use the term “Cincinnatian” for strata of the same age all over North America. This book synthesizes more than 150 years of research on this fossil treasure-trove, describing and illustrating the fossils, the life habits of the animals represented, their communities, and living relatives, as well as the nature of the rock strata in which they are found and the environmental conditions of the ancient sea. “A fascinating glimpse of a long-extinct ecosystem.” —Choice
