There are no three primary races, no three major groups.

There are no three primary races, no three major groups. The idea of three primary races stems from nineteenth-century typology; it is totally misleading to put the black-skinned people of the world together-to put the Australian in the same grouping with the inhabitants of Africa. And there are certainly at least three independent origins of the small, dark people, the Pygmies, and probably more than that. There is no single Pygmy race.

S. L. Washburn, “The Study of Race,” American Anthropologist, Volume 65, Issue 3 (June 1963): 521-531. https://dx.doi.org/10.1525/aa.1963.65.3.02a00010