Ancient Clams Reveal How Earth Rebounded From Mass Extinction Tuesday, March 16, 2010

Ancient Clams Reveal How Earth Rebounded From Mass Extinction

Tuesday, March 16, 2010 8:41 PM

Ancient clams discovered by College of Wooster geologist reveal
how Earth rebounded from mass extinction by John Mangels,
The Plain Dealer, February 27, 2010

http://www.cleveland.com/science/index.ssf/2010/02/ancient_clams_discovered_by_co.html

Yours,

Paul H.