John H. Ostrom was an American paleontologist who Read More...

Dr. James Culbertson McConnell, usually abbreviate Read More...

Philippe Janvier is a French paleontologist, speci Read More...

Henry Fairfield Osborn was an American geologist, Read More...

Elmer Samuel Riggs was an American paleontologist Read More...

Isabel Clifton Cookson was an Australian botanist Read More...