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Extinction

How Life on Earth Nearly Ended 250 Million Years Ago

Extinction( )
Author: Erwin, Douglas H.
ISBN:978-0-691-13628-8
Publication Date:Apr 2008
Publisher:Princeton University Press
Book Format:Paperback
List Price:USD $26.95
Book Description:

Some 250 million years ago, the earth suffered the greatest biological crisis in its history. Around 95% of all living species died out--a global catastrophe far greater than the dinosaurs' demise 65 million years ago. How this happened remains a mystery. But there are many competing theories. Some blame huge volcanic eruptions that covered an area as large as the continental United States; others argue for sudden changes in ocean levels and chemistry, including burps of methane...
More Description

Book Details
Pages:320
Detailed Subjects: Science / Life Sciences / Biology
Science / Earth Sciences / Geology
Science / Earth Sciences / Sedimentology & Stratigraphy
Science / Paleontology
Physical Dimensions (W X L X H):6 x 9 x 2.215 Inches
Book Weight:1 Pounds



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