'This genetic diversity was then modified further by a series of incoming and expanding cultures from Iberia and Eastern Europe through the Late Neolithic.
Maybe that is when God finished creating man by adding the finishing touches: giving him a spirit and soul . . . and actually creating man in His own REAL image:
“God is spirit and those who worship Him must worship in spirit and truth.” John 4:24
The EDNAP group in 2005
Of course, a global flood would cause the present day carbon-dating figures to need adjusting since almost all carbon life form would be dead and buried...
Center for Scientific Creation - In the Beginning: Compelling Evidence for Creation and the Flood
http://www.creationscience.com/onlinebook/IntheBeginningTOC.html
clearly the Ancient Aliens, after experimentation with other species like the Neanderthal, finally decided on a final change in the DNA sequence for their future slave population—the modern human.
Accordingly, they destroyed all evidence of their presence (Atlantis) and moved on to find other planets to bioengineer.