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Author: Karl A. Wilson (Emeritus professor of biological sciences)
Publisher:
ISBN: 9780877105060
Category : Paleontology
Languages : en
Pages : 260
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Author: Karl A. Wilson (Emeritus professor of biological sciences)
Publisher:
ISBN: 9780877105060
Category : Paleontology
Languages : en
Pages : 260
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Book Description
Author: David M. Linsley
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 496
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Book Description
Author: George R. McGhee
Publisher: Columbia University Press
ISBN: 9780231075053
Category : Computers
Languages : en
Pages : 338
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Book Description
Based on two decades of research, The Late Devonian Mass Extinction reviews the many theories that have been presented to explain the global mass extinction that struck the earth over 367 million years ago, considering in particular the possibility that the extinction was triggered by multiple impacts of extraterrestrial objects.
Author: Thomas Edward Whiteley
Publisher: Comstock Publishing Associates
ISBN:
Category : Nature
Languages : en
Pages : 410
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Book Description
"Trilobites are the most lifelike of fossils--many well-preserved specimens belie their great antiquity and seem almost ready to arch their bodies, peer about with their compound eyes, and crawl forward as if to complete a journey that was interrupted hundreds of millions of years ago."--from the Foreword"New York State is and has long been a magnet for trilobite hunters.... New York's trilobites were among the first illustrated fossils in North America.... Many outstanding localities in New York State, from the majestic Ordovician limestone bluffs of Trenton Falls, to the Silurian beds in the great gorge of Niagara River, to the Devonian shale cliffs of Lake Erie, continue to yield abundant and spectacular trilobite fossils. New York strata have also yielded more trilobites with preserved appendages and other "soft parts" than almost any other region of the world.... Spectacular, ornate trilobites from New York ranging from a few millimeters to nearly a half meter in length, are featured in museums all over the world."--from the PrefaceThis superbly illustrated book reviews the trilobite fossils found throughout New York State, including their biology, methods of taphonomy (preservation of specimens), and the broader Paleozoic geology of the state. A general chapter on the geology of New York State places the importance of these now-extinct invertebrate marine animals into context. Sixty-seven line drawings and 175 black-and-white photographs illustrate individual species, many represented here by type specimens, and display the eerie beauty that has made New York State trilobites favorites of collectors the world over.
Author: James Hall
Publisher:
ISBN:
Category : Palaeontology
Languages : en
Pages : 752
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Author: George R. McGhee Jr.
Publisher: Columbia University Press
ISBN: 0231536364
Category : Science
Languages : en
Pages : 345
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Book Description
The invasion of land by ocean-dwelling plants and animals was one of the most revolutionary events in the evolution of life on Earth, yet the animal invasion almost failed—twice—because of the twin mass extinctions of the Late Devonian Epoch. Some 359 to 375 million years ago, these catastrophic events dealt our ancestors a blow that almost drove them back into the sea. If those extinctions had been just a bit more severe, spiders and insects—instead of vertebrates—might have become the ecologically dominant forms of animal life on land. This book examines the profound evolutionary consequences of the Late Devonian extinctions and the various theories proposed to explain their occurrence. Only one group of four-limbed vertebrates exists on Earth, while other tetrapod-like fishes are extinct. This gap is why the idea of "fish with feet" seems so peculiar to us, yet such animals were once a vital part of our world, and if the Devonian extinctions had not happened, members of these species, like the famous Acanthostega and Ichthyostega, might have continued to live in our rivers and lakes. Synthesizing decades of research and including a wealth of new discoveries, this accessible, comprehensive text explores the causes of the Devonian extinctions, the reasons vertebrates were so severely affected, and the potential evolution of the modern world if the extinctions had never taken place.
Author: Yngvar W. Isachsen
Publisher: New York State Museum
ISBN:
Category : History
Languages : en
Pages : 330
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Book Description
Author: John Mason Clarke
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 870
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 864
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Book Description
Author: New York (State). Legislature. Senate
Publisher:
ISBN:
Category : New York (State)
Languages : en
Pages : 1534
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