Let's wrap this up. I did not intend to make this a discussion for its own sake:
—As I said in my previous reply, it is not my claim that Palaeolithic Egyptians were both broad and long headed. There are no Palaeolithic Egyptian fossils with broad heads. They simply do not exist.
—Skull shape is subject to selective pressures and it is well known among biologists that alleles can become fixed. There is no scientific contradiction in pointing out long term continuity of broad heads in the Levant.
—You are calling Jebel Sahabans "native" with no basis. There is no evidence that Jebel Sahabans of the so-called 'racial war' were native to northern Sudan.
—Mesolithic Nubians weren't "killed off" or "pushed back", as we still find them at Wadi Halfa and other northern places millennia later.
—Semitic speakers were Africans and their arrival in Syria is associated with African ancestry. There was a strong admixture event in Mesopotamia involving Africans and local groups 3800BC, which is the exact date associated with the arrival of Semitic speakers. This admixture event can be, and has been, detected using Sub-Saharan Africans as a reference sample. (
See Haber et al 2015).
—Levels of Basal Eurasian have little to do with being close to Natufians. The two populations with the most Basal Eurasian (prehistoric Iranians and Natufians) are not at all closely related. And it should be pointed out that modern population aren't exactly
close to Natufians, either (Lazaridis et al 2016). It's just that
some populations are closer to Natufians than others are. This wouldn't be the case if all one needed to be close to Natufians was Basal Eurasian.
—ASI forms a clade with all other living Eurasians and have have been modeled on trees as being a part of the larger Eurasian family. MSA African ancestry is only heightened in them. The ASI component doesn't represent a wholesale carryover from MSA Africans.