Elwyn L. Simons

Elwyn LaVerne Simons (July 14, 1930 – March 6, 2016) was an American paleontologist, paleozoologist, and a wildlife conservationist for primates. He was known as the father of modern primate paleontology for his discovery of some of humankind’s earliest antecedents. 
His paleontology field work included sites in Egypt, Madagascar, and the U.S. state of Wyoming. 
Works.
He authored more than 300 scholarly books and research articles, often acting as the sole author or coauthoring with his students and colleagues.