When the Invasion of Land Failed (eBook)

The Legacy of the Devonian Extinctions

George McGhee (Autor)

eBook Download: PDF | EPUB

2013
Columbia University Press (Verlag)
978-0-231-53636-3 (ISBN)

Infos

George R. McGhee Jr. is Distinguished Professor of Paleobiology at Rutgers University and a Member of the Konrad Lorenz Institute for Evolution and Cognition Research in Klosterneuburg, Austria. He has held research positions at the University of Tübingen, the Field Museum of Natural History, and the American Museum of Natural History.

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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 "e;fish with feet"e; 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.

Inhalt

Preface1. The Evolution of Life on Land2. The Plants Establish a Beachhead3. The First Animal Invasion4. The First Catastrophe and Retreat5. The Second Animal Invasion6. The Second Catastrophe and Retreat7. Victory at Last8. The Legacy of the Devonian ExtinctionsNotesReferencesIndex

Produkt-Details

• Erscheint lt. Verlag: 22.10.2013
• Reihe/Serie: The Critical Moments and Perspectives in Earth History and Paleobiology
• Zusatzinfo: <B>Color Illus.: </B>12,, <B>B&W Illus.: </B>48,
• Verlagsort: New York
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Biologie ► Evolution
• Themenwelt: Naturwissenschaften ► Biologie ► Zoologie
• Themenwelt: Naturwissenschaften ► Geowissenschaften ► Mineralogie / Paläontologie
• Themenwelt: Technik
• ISBN-10: 0-231-53636-4 / 0231536364
• ISBN-13: 978-0-231-53636-3 / 9780231536363