The Great Ordovician Biodiversification Event

Klappentext 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. Zusammenfassung Focuses on the 46-million-year Ordovician Period (489-443 my)! when 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 colonized terrestrial areas with damp environments. Inhaltsverzeichnis Scaling Of Ordovician Time! And Measures For Assessing Biodiversity ChangeIntroduction! by Barry D. Webby and Florentin ParisConspectus Of The Ordovician WorldStratigraphic Framework and Time Slices! by Barry D. Webby! Roger A. Cooper! Stig M. Bergstr^m and Florentin ParisTaxonomic GroupsCalibration of the Ordovician Time Scale! by Peter M. Sadler and Roger A. CooperAspects Of The Ordovician RadiationMeasures of Biodiversity! by Roger A. CooperMajor Terranes in the Ordovician! by L. Robin M. Cocks and Trond H. TorsvikIsotopic Signatures! by Graham A. Shields and J·n VeizerOrdovician Oceans and Climate! by Christopher R. BarnesWas there an Ordovician Superplume Event?! by Christopher R. BarnesEnd-Ordovician Glaciation! by Patrick J. BrenchleySea-level Changes - a Baltoscandian Perspective! by Arne Thorsh¯j NielsonRadiolarians! by Paula J. Noble and Taniel DanelianSponges! by Marcelo Carrera and J. Keith RigbyStromatoporoids! by Barry D. WebbyConulariids! by Heyo Van Iten and Zdenka Brabcov·Corals! by Barry D. Webby! Robert J. Elias! Graham A. Young! Bj^rn E.E. Neuman and Dimitri Bryozoans! by Paul D Taylor and Andrej ErnstBrachiopods! by David A.T. Harper! L. Robin M. Cocks! Leonid E. Popov! Peter M. Sheehan! MichaelPolyplacophoran and Symmetrical Univalve Molluscs! by Lesley Cherns! David M. Rohr and JirÌ FrydaGastropods! by JirÌ Fryda and David M. RohrRostroconch and Bivalve Molluscs! by John C.W. CopeNautiloid Cephalopods! by Robert C. Frey! Matilde S. Beresi! David H. Evans! Alan H. King and Ian G. PerciTube-Shaped Incertae Sedis! by John M. Malinky! Mark A. Wilson! Lars E. Holmer and Hubert LardeuxWorms! Worm-like and Sclerite-bearing Taxa! by Olle Hints! Mats Eriksson! Anette E.S. H^gstr^m! Petr Kraft and Oliver LehnertTrilobites! by Jonathan M. Adrain! Gregory D. Edgecombe! Richard A. Fortey! ÿyvind Hammer! JohnEurypterids! Phyllocarids and Ostracodes! by Simon J. Braddy! Victor P. Tollerton Jr.! Patrick Racheboeuff! and Roger SchallrAsterozoan! Echinozoan! Blastozoan! Crinozoan and Homalozoan Echinoderms! by James Sprinkle and Thomas E. GuensburgGraptolites: Patterns of Diversity across Paleolatitudes! by Roger ...

Zusammenfassung
Focuses on the 46-million-year Ordovician Period (489-443 my), when 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 colonized terrestrial areas with damp environments.

Inhalt
Scaling Of Ordovician Time, And Measures For Assessing Biodiversity Change Introduction, by Barry D. Webby and Florentin Paris Conspectus Of The Ordovician World Stratigraphic Framework and Time Slices, by Barry D. Webby, Roger A. Cooper, Stig M. Bergstr^m and Florentin Paris Taxonomic Groups Calibration of the Ordovician Time Scale, by Peter M. Sadler and Roger A. Cooper Aspects Of The Ordovician Radiation Measures of Biodiversity, by Roger A. Cooper Major Terranes in the Ordovician, by L. Robin M. Cocks and Trond H. Torsvik Isotopic Signatures, by Graham A. Shields and J·n Veizer Ordovician Oceans and Climate, by Christopher R. Barnes Was there an Ordovician Superplume Event?, by Christopher R. Barnes End-Ordovician Glaciation, by Patrick J. Brenchley Sea-level Changes - a Baltoscandian Perspective, by Arne Thorsh¯j Nielson Radiolarians, by Paula J. Noble and Taniel Danelian Sponges, by Marcelo Carrera and J. Keith Rigby Stromatoporoids, by Barry D. Webby Conulariids, by Heyo Van Iten and Zdenka Brabcov· Corals, by Barry D. Webby, Robert J. Elias, Graham A. Young, Bj^rn E.E. Neuman and Dimitri Bryozoans, by Paul D Taylor and Andrej Ernst Brachiopods, by David A.T. Harper, L. Robin M. Cocks, Leonid E. Popov, Peter M. Sheehan, Michael Polyplacophoran and Symmetrical Univalve Molluscs, by Lesley Cherns, David M. Rohr and JirÌ Fryda Gastropods, by JirÌ Fryda and David M. Rohr Rostroconch and Bivalve Molluscs, by John C.W. Cope Nautiloid Cephalopods, by Robert C. Frey, Matilde S. Beresi, David H. Evans, Alan H. King and Ian G. Perci Tube-Shaped Incertae Sedis, by John M. Malinky, Mark A. Wilson, Lars E. Holmer and Hubert Lardeux Worms, Worm-like and Sclerite-bearing Taxa, by Olle Hints, Mats Eriksson, Anette E.S. H^gstr^m, Petr Kraft and Oliver Lehnert Trilobites, by Jonathan M. Adrain, Gregory D. Edgecombe, Richard A. Fortey, ÿyvind Hammer, John Eurypterids, Phyllocarids and Ostracodes, by Simon J. Braddy, Victor P. Tollerton Jr., Patrick Racheboeuff, and Roger Schallr Asterozoan, Echinozoan, Blastozoan, Crinozoan and Homalozoan Echinoderms, by James Sprinkle and Thomas E. Guensburg Graptolites: Patterns of Diversity across Paleolatitudes, by Roger A. Cooper, J^rg Maletz, Lindsey Taylor and Jan Zalasiewicz Chitinozoans, by Florentin Paris, AÔcha Achab, Esther Asselin, Xiao-hong Chen, Jaak NÐlvak, Yngve Conodonts: Lower-Middle Ordovician Record, by Guillermo L. Albanesi and Stig M. Bergstr^m Vertebrates (Agnathans and Gnathostomes), by Susan Turner, Alain Blieck and Godfrey S. Nowlan Receptaculitids and Algae, by Matthew H. Nitecki, Barry D. Webby, Nils Spjeldnaes and Yong-yi Zhen Acritarchs, by Thomas Servais, Jun Li, Ludovic Stricanne, Marco Vecoli and Reed Wicander Miospores and the Emergence of Land Plants, by Phillippe Steemans and Charles Wellman The Ichnologic Record of the Ordovician Radiation, by M. Gabriela M·ngano and Mary L. Droser The Ordovician Radiation: Towards a New Global Synthesis, by Arnold I. Miller

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