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Cambrian explosion

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This is an old revision of this page, as edited by Mav (talk | contribs) at 10:37, 13 March 2002 (There is some info in the Cambrian article that need to go here too... I'll take care of that later.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

The Cambrian Explosion is the commonly used term to denote the radiation of animal phyla that started just before the Cambrian geologic period and proceeded through the Cambrian. The Varangian glaciation, which preceeded this radiation, along with subsequent greenhouse warming of the Earth, is theorized to have provided the evolutionary pressure.

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