Bivalve Boom (IMAGE) University of Chicago Caption Bivalves predominate in this sample of marine organisms. Marine bivalves have been originating new species faster since the extinction of the dinosaurs than before, according to paleontologists at the University of Chicago and the University of California, Berkeley. Credit Courtesy of Susan Kidwell Usage Restrictions This image may be used to illustrate news reports describing the research of Andrew Krug and David Jablonski. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.