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The Mechta-Afalou/Mechtoids redux thread
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[QUOTE]Originally posted by The Explorer: [QB] [QUOTE]Originally posted by MindoverMatter718: Even during this time, these people still wouldn't have been pale as we see them today though, as the allele SLC24A5 111*A present in geographical proximate populations in the middle east, north Africa and Pakistan. Comes from gene flow with European populations. This allele was still under selection in the European population at this time, and only in Europe. So the question is when did Europeans come into these areas to contribute this admixture? [/QUOTE]Well, while it is certainly possible that some humans crossed the strait and into Africa, I doubt this would have been to any meaningful size, at least, at anytime prior to the arrival of Imazighen groups. As I noted, even though the Imazighen speakers were in northeastern Africa by ca. 8 kya or so, it wasn't until about 2 to 3 kya that they expanded in the Maghrebian region. So, any European arrival prior to this period, would have had little bearing on Imazighen groups. Sure the Europeans like to compare North African specimens to European examples, which is what this whole Mechtoid deal is about; in this case, the Cro-Magnon was the Eurocentric template of choice. However, as Brace noted, nothing about the cranio-facial morphology of contemporary Imazighen groups suggests a link to Cro-Magnons. And indeed, genetics backs him on this point as well. But as we can see, even the attempt to relate prehistoric North Africans to European counterparts has virtually failed, as the Mechtoid concept shows; the group so-designated neither exhibit a single cranio-morphological type, nor robusticity, as the term "Mechtoid" would suggest. Heck, they are all not even dated to the same time frames. So, it is nothing more than the Eurocentric concept, as Brace again noted, to use "Cro-Magnon" and say that the "Cro-Magnon are us"...with the "us" meaning "European". Brace characterized this as more of an anthropological "folklore" than fact. In fact, Brace says that the Cro-Magnon doesn't tie with any of the contemporary European specimens he studied. So again, the Mechtoid concept and its supposed relationship with Cro-Magnon, is nothing more than another Eurocentric way of trying to relate North Africa to Europe...essentially as more an extension of Europe than the actual continent [Africa] its attached to. However, it fails miserably not only for reasons just noted, but also from the fact that none of the so-called Mechtoid specimen 'types' mentioned have ever been located in Europe itself. As for the skin tone development in Imazighen groups of northwest African coast, this is what I've said before; I believe much of it occurred during the historic era of the Holocene, and in no small part due to... "Trafficking of women from the other side of the Mediterranean sea as slaves surely must have left its own mark. This coupled with a tradition of polygamy [especially amongst those sections of north African populations which were Muslim-converts] would have facilitated households with sizeable headcount of offspring per a single male 'owner'. Then there were also sudden waves of migration to the north African coast during the fall of direct northwest African rule in the Iberian peninsula; no doubt families who reached the north African coast had left some genetic imprint therein. And of course, genetic drift has its own role to play in all this. All that aside, a look at samplings so far undertaken in coastal northwest Africa suggests that these have generally relied [i]on sampling small, scattered populations[/i] [see Cherni et al. 2005], giving fragmented or incomplete picture of northwest African maternal gene pool structure." The caveat here is that, if Imazighen populations had found some "white European" groups upon arriving in the northwest African coast, then it certainly doesn't appear to have been one of a large population, with a sizeable European male demography. Contemporary Imazighen speakers of the North African coast have very little to essentially neglegable European male contribution in their gene pool. [/QB][/QUOTE]
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