Via Eurogenes: Gravettiana. [UPDATE 5/5/22 moar]
Gravettis are the Europeans after the Neanders were done wit': from 30kBCish, through to the latest Ice Age blast. Gravettiana still inhabits the Palaeolithic; but they have moved on from "Cro-Magnon Man". The general time-frame is the domestication of the dog.
This paper is headed up by one E. Andrew Bennett. They note that the Gravettis have the N1 mitochondrion - that's the female line. This is not the N of the modern Euro "Daughters of Eve", who descend (mainly) from N's basal daughter R.
Most interesting here is that the Gravetti N1 line is on its way to N1b. N1b today is Ashkenaz (10% are N1b1b)... and Somali (N1b2).
One thought is the Viking / Islamic slave-trade in those proverbially-beautiful women of the Caucasus. But I'd not think to see them cluster in Somalia in that case; I'd expect larger populations in richer regions of the Islamic world, like Basra. Also N1b seems early, to be a base. Doesn't look late-antique.
I'm thinking more, the mass-migrations of that Ice Age. We already have (from Karen Bojs) the U clades of western Europe streaming into western North Africa. Seems to me that N1b from eastern Europe might take a different route.
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