[Light Speed]

Yes you are correct on your comment concerning DNA....
poor wording choice on my part.
From my perspective..if the skull is like ours..and is near the time window they are forwarding...and unless man had some problem procreating...human population numerics would be much like ours...hence mankind would have probably been into the habitation phase much earlier than the 15,000 yr window which we are discovering today.
I suspect catastrophism to be the prime mover in keeping population numbers down..and driving man into migrations.

[Aracelis]

human population numerics would be much like ours

That certainly might have happened, except that the average life-span may have only been into the early to mid-twenties due to disease, etc. Still, that amount of time might have been sufficient for each female to produce 5 or 6 offspring.