New hominids from the Lake Turkana Basin, Kenya

New hominid fossils from the Lake Turkana Basin range in age from ca. 3.35 to ca. 1.0 Ma. Those recovered from sediments stratigraphically just above the Tulu Bor Tuff in the Lomekwi Member of the Nachukui Formation are best attributed to Australopithecus afarensis. This species is rare in Kenya, probably because of the scarcity of sediments deposited during its time span. Younger specimens are referable either to the megadont A. boisei or early Home. Collectively the new fossils promote further understanding of morphological variation in East African Plio-Pleistocene hominids. (C) 2001 Academic Press.