Critical Moments and Perspectives in Earth History and Paleo: The Emergence of Animals (Paperback)

Mark A S McMenamin; Dianna McMenamin
Columbia University Press
9780231066471
0-231-06647-3

The authors explore the late Precambrian and earliest Cambrian fossil record to explain the Cambrian phenomenon and discuss the possibility of a major turnover in marine ecology at the beginning of the.

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Cambrian period or whether a new, improved type of animal appeared at this time. They support their often controversial conclusions with photos and illustrations of fossils, some never before published.