What did george simpson discover student

American paleontologist (1902–1984)

George Gaylord Simpson (June 16, 1902 – October 6, 1984) was an American paleontologist. Simpson was perhaps the most influential paleontologist of the twentieth century, and a major participant in the modern synthesis, contributing Tempo and Mode in Evolution (1944), The Meaning of Evolution (1949) and The Major Features of Evolution (1953).

A Novice's Biography of George Gaylord Simpson

He was an expert on extinctmammals and their intercontinental migrations.^[2] Simpson was extraordinarily knowledgeable about Mesozoic fossil mammals and fossil mammals of North and South America. He anticipated such concepts as punctuated equilibrium (in Tempo and Mode) and dispelled the myth that the evolution of the horse was a linear process culminating in the modern Equus caballus.

He coined the word hypodigm in 1940, and published extensively on the taxonomy of fossil and extant mammals.^[3] Simpson was influentially, and incorrectly, opposed to