"The oldest remains of Homo sapiens sapiens found in East Africa were associated with an industry having similarities with the Capsian. It has been called Upper Kenyan Capsian, although its derivation from the North African Capsian is far from certain. At Gamble's Cave in Kenya, five human skeletons were associated with a late phase of the industry, Upper Kenya Capsian C, which contains pottery. A similar associationis presumed for a skeleton found at Olduvai, which resembles those from Gamble's Cave. The date of Upper Kenya Capsian C is not precisely known (an earlier phase from Prospect Farm on Eburru Mountain close to Gamble's Cave has been dated to about 8000 BC); but the presence of pottery indicates a rather later date, perhaps around 400 BC. The skeletons are of very tall people. They had long, narrow heads, and relatively long, narrow faces. The nose was of medium width; and prognathism, when present, was restricted to the alveolar, or tooth-bearing, region.
Many authors regard these people as physically akin to the Mediterraneans, hence the label of 'Caucasoids' (or European-like) generally attached to them.
However, all their features can be found in several living populations of East Africa, like the Tutsi of Rwanda and Burundi, who are very dark skinned and differ greatly from Europeans in a number of body proportions.
From the foregoing, it is tempting to locate the area of differentiation of these people in the interior of East Africa. Now, as mentioned in Chapter 3, the fossil record tells of tall people with long and narrow heads, faces and noses who lived a few thousand years BC in East Africa at such places as Gamble's Cave in the Kenya Rift Valley and at Olduvai in northern Tanzania. There is every reason to believe that they are ancestral to the living 'Elongated East Africans'. Neither of these populations, fossil and modern, should be considered to be closely related to Caucasoids of Europe and western Asia, as they usually are in literature."