Pelmatozoan Columnals from the Ordovician of the British Isles PDF Download

Author: S. K. Donovan
Publisher:
ISBN:
Category : Crinoidea, Fossil
Languages : en
Pages : 100

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Author: Stephen K. Donovan
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 124

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Author: D.A.T. Harper
Publisher: Geological Society of London
ISBN: 1862393737
Category : Science
Languages : en
Pages : 485

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Book Description
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.

Author: Bruno David
Publisher: CRC Press
ISBN: 1000123677
Category : Science
Languages : en
Pages : 965

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Echinoderms are now considered as a biological and geological model that underlies researches of primary importance. The extent of the contributions made by the International Echinoderm Conferences to various fields of research is attested by the scope covered by presentation at the international conferences. These proceedings contain the complete papers or abstracts of all the presentations and posters presented at the eighth International Echinoderm Conference, held in Dijon, France in September, 1994. Coverage includes: general; extinct classes; crinoids; asteroids; ophiuroids; holothuroids; and echinoids.

Author: Robert Maurice Owens
Publisher: National Museum Wales
ISBN: 0720004225
Category : Fossils
Languages : en
Pages : 231

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Book Description
This catalogue lists all 'type and figured fossils' - those described, illustrated or referred to by geologists in scientific publications - up to the end of 1994.

Author: E. N. K. Clarkson
Publisher: John Wiley & Sons
ISBN: 1444313320
Category : Science
Languages : en
Pages : 471

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Book Description
Invertebrate Palaeontology and Evolution is well established as the foremost palaeontology text at the undergraduate level. This fully revised fourth edition includes a complete update of the sections on evolution and the fossil record, and the evolution of the early metazoans. New work on the classification of the major phyla (in particular brachiopods and molluscs) has been incorporated. The section on trace fossils is extensively rewritten. The author has taken care to involve specialists in the major groups, to ensure the taxonomy is as up-to-date and accurate as possible.

Author: A. W. A. Rushton
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 468

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The Cambrian and Ordovician systems are recognised worldwide as two of the major divisions of geological time. This volume describes some 130 sites that encapsulate key features of the Cambrian and Ordovician in Britain, and the reference list provides an entry to the literature on the subject.

Author: A.W. Hunter
Publisher: Geological Society of London
ISBN: 178620407X
Category : Science
Languages : en
Pages : 615

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Special Publication 485 About 40 million years after the Cambrian Explosion, the Great Ordovician Biodiversification Event (GOBE) represents a second and dramatic burst in marine biodiversity, with major changes in the structure of ecosystems and the progressive replacement of the distinctive Cambrian Evolutionary Fauna by the Paleozoic Evolutionary Fauna. However, the GOBE is not a single, worldwide, short-term event, but rather the complex sum of successive diversifications occurring in distinct taxonomic groups, trophic guilds and regions. This book focuses on the Late Ordovician Tafilalt Biota, Anti-Atlas Morocco, which provides a snapshot of the GOBE in high-latitude regions of the Southern Hemisphere. A series of contributions explore different aspects of the Tafilalt Biota, including its geological setting, the international fossil trade in this area and a series of detailed systematic contributions describing many new taxa of marine invertebrates. This volume represents a significant contribution to the understanding of the Tafilalt Biota and its significance to the GOBE.

Author:
Publisher:
ISBN:
Category : Animal behavior
Languages : en
Pages : 520

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Author: Stephen K. Donovan
Publisher:
ISBN:
Category : Echinodermata, Fossil
Languages : en
Pages : 68

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