They point to the fact that many Europeans have relatively heavy brow ridgesdating to 200,000 years ago.
Like Homo erectus, East Asians today commonly have shovel-shaped incisors while Africans and Europeans rarely do.
Since this gene is thought to have originated more than 200,000 years ago, it undercuts the claim that an African population of to modern humans in Europe and Asia.
In other words, the Asian and European physical characteristics have antiquity in these regions going back over 100,000 years.
Dating of the earliest modern human fossils in Asia is less secure, but it is likely that they were present there by at least 60,000 years ago and possibly 100,000 years ago.
It would seem from these dates that the location of initial modern Homo sapiens evolution and the direction of their dispersion from that area is obvious. Since the early 1980's, there have been two leading contradictory models that attempt to explain.
From this view, the regional anatomical differences that we of this model believe that the ultimate common ancestor of all modern people was an early Homo erectus in Africa who lived at least 1.8 million years ago.
Somewhat more advanced transitional forms have been found at Laetoli in Tanzania dating to about 120,000 years ago.
The video below presents evidence of pockets of archaic humans surviving in West Africa until at least 13,000 years ago. Along the way, some of them interbred with archaic humans, including both Neandertals and Denisovans.
Genetic markers from these archaic human populations are found in the gene pool of some Southern Chinese, New Guinean, and other Micronesian Island populations today.
Their skeletons and musculature generally were less massive than the Neandertals.
The Cro-Magnon had broad, small faces with pointed chins and high foreheads.