Title: The Omo-Turkana Basin, East Africa—a treasury of history Featuring: Francis H. Brown, Department of Geology & Geophysics, University of Utah Lake Turkana was the last major lake in East Africa to become known to Europeans. The arid basin in which it is located has been studied since ~1900. Sedimentary deposits there contain a fossil record stretching from the Cretaceous to the late Pleistocene. Recent work in the basin began in 1966 as a prelude to the International Omo Research Expedition with teams from the U.S., France, and Kenya, and has continued since.