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Recovering from a mass extinction
Date:1/18/2008

nly assessed by tallying the number of taxa on a global scale, but these studies are subject to the vagaries of sampling. By examining well-preserved and well-studied faunas, the taxonomic and ecological recovery of communities after the Permian extinction event can be examined more accurately, and the problems of geological bias are largely avoided.

The Permian extinctions occurred in three waves, the largest being at the boundary between the Permian and Triassic periods, 251 million years ago. This was the most devastating ecological event of all time, thought to be caused by large-scale volcanism in Russia which produced the Siberian Traps, covering over 200,000 square kilometers (77,000 square miles) in lava.


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Contact: Sarda Sahney
S.Sahney@bristol.ac.uk
44-796-247-2732
University of Bristol
Source:Eurekalert  

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