Template:Cambrian explosion graphical timeline

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Revision as of 13:18, 22 September 2009 by imported>Alnagov
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Key Cambrian explosion events
One possible timescale for events around the Cambrian/Precambrian boundary.

Axis scale: millions of years ago.

Stratigraphic scale of the ICS with Russian Lower Cambrian subdivision and Precambrian/Cambrian boundary.