#26 Peer Reviewed: Pre-Dynastic Egyptians share Traits with Sub-Saharans (Freedman, 2002)

Wikipedia states,

"Archaeological evidence has suggested that the Tasian and Badarian Nile Valley sites were a peripheral network of earlier African cultures that featured the movement of Badarian, Saharan, Nubian, and Nilotic populations.[6] Bruce Williams, Egyptologist, has stated "The Tasian Period is significantly related to the Neolithic of Sudanese-Saharan tradition as found just north of Khartoum and near Dongola in Sudan".[7]

Tasians were shown to have dental traits similar to Sub-Saharan Africans and some also to North Africans. According to the researchers, it is possible that the population may have been a mix of both groups, but the sample size was concluded to be to small to make definitive statements.[8]

Source: https://en.wikipedia.org/wiki/....Tasian_culture#cite_