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Global Perspectives on Ordovician Geology
  • Language: en

Global Perspectives on Ordovician Geology

  • Type: Book
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  • Published: 1992
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  • Publisher: Unknown

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The Great Ordovician Biodiversification Event
  • Language: en
  • Pages: 496

The Great Ordovician Biodiversification Event

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 ...

Studies in Palaeontology and Stratigraphy
  • Language: en

Studies in Palaeontology and Stratigraphy

  • Type: Book
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  • Published: 1982
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  • Publisher: Unknown

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Early Palaeozoic Biogeography and Palaeogeography
  • Language: en
  • Pages: 490

Early Palaeozoic Biogeography and Palaeogeography

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 i...

Title
  • Language: en

Title

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Graptolite Paleobiology
  • Language: en
  • Pages: 336

Graptolite Paleobiology

The graptolites constitute one of the geologically most useful taxonomic groups of fossils for dating rock successions, understanding paleobiogeography and reconstructing plate tectonic configurations in the Lower Palaeozoic. Graptolites were largely planktic, marine organisms, and as one of the first groups that explored the expanses of the world's oceans are vital for understanding Palaeozoic ecology. They are the best and often the only fossil group for dating Lower Palaeozoic rock successions precisely. Thousands of taxa have been described from all over the planet and are used for a wide variety of geological and palaeontological (biological) research topics. The recent recognition of t...

Journal and Proceedings of the Royal Society of New South Wales
  • Language: en

Journal and Proceedings of the Royal Society of New South Wales

  • Type: Book
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  • Published: 1991
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  • Publisher: Unknown

Includes list of members.

Fossil Cnidaria 5
  • Language: en
  • Pages: 438

Fossil Cnidaria 5

  • Type: Book
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  • Published: 1989
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  • Publisher: Unknown

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Advances in Ordovician Geology
  • Language: en
  • Pages: 336

Advances in Ordovician Geology

  • Type: Book
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  • Published: 1991
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  • Publisher: Unknown

Selected papers from the August 1988 symposium on the Ordovician System. Authors from the U.K., Canada, Australia, and the U.S. contributed papers on a project to redefine regional chronostratigraphic subdivisions. Papers also cover Ordovician paleontology and biostratigraphy, emphasizing conodonts, graptolites and trilobites. The interrelationships of stratigraphy, eustasy, tectonics, and volcanisms are explored, with particular attention to the Appalachian Orogen. The final section of the volume documents some of the new data and interpretations of Ordovician paleo-oceanography, paleoclimatology, and paleogeography.

Current Research
  • Language: en

Current Research

  • Type: Book
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  • Published: 1990
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  • Publisher: Unknown

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