George G. Simpson

George G. Simpson
George Gaylord Simpsonwas an American paleontologist. Simpson was perhaps the most influential paleontologist of the twentieth century, and a major participant in the modern evolutionary synthesis, contributing Tempo and mode in evolution, The meaning of evolutionand The major features of evolution. He was an expert on extinct mammals and their intercontinental migrations. He anticipated such concepts as punctuated equilibriumand dispelled the myth that the evolution of the horse was a linear process culminating in the modern Equus caballus. He coined...
among beyond examples gradually slightest species
Among the examples are many in which, beyond the slightest doubt, a species or genus has been gradually transformed into another.
against categories darwin evidence evolution fact general gradual origin provide rather recognized seemed
Darwin (1859) recognized the fact that paleontology then seemed to provide evidence against rather for evolution in general or the gradual origin of taxonomic categories in particular.