http://www.temehu.com/wan-muhuggiag.htmThis mummy from the central Saharan culture was prepared in a sophisticated manner a thousand years before the first mummy was created in Egypt. This culture also had a jackal-headed god and a cattle cult comparable to that later found in the Nile valley. This culture was spread completely across north Africa, becoming the Cushites. They spread to the periphery and especially the river valleys as the Sahara dried up.
http://www.varchive.org/tac/libyans.htmThe 22nd and 23rd Egyptian dynasties, whose mummies look most like Somalis, came from this area of Libya. Both Somali and Coptic, as well as Berber, Oromo, Afar, Rendille and Amhara, are all Cushitic, in some way related to this early culture.