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Extinction: How Life on Earth Nearly Ended 250 Million Years Ago.(Brief article)(Book review)

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Extinction: How Life on Earth Nearly Ended 250 Million Years Ago Douglas H. Erwin. 2006. 296pp. $24.95. Princeton University Press, Princeton, NJ. ISBN: 0691005249.

The Permian mass extinction that saw the demise of more than 90% of all species some 250 million years ago is one of paleontology's greatest mysteries. This scientific "who-done-it" presents both the evidence and arguments for each of the major competing explanations (massive volcanism, asteroid impact, changes in sea levels, and anoxic ocean currents) for those who really enjoy paleontology. The book's detail and depth makes it appropriate for an elective or for student research.

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