Difference between revisions of "Template:Cambrian explosion graphical timeline"

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imported>Alnagov
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Revision as of 13:08, 20 September 2009

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.