Dictionary of Human Evolution and Biology

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Koobi Fora

Fossiliferous region first identified in 1967-8 near East Lake Turkana, Kenya, where many archaeological sites were found from 1968 through 1990. These sites date from 4.3 mya to 600 kya (K/Ar, see specific tuffs: Lonyumun, Moiti, Lokochot, Tulu Bor, Burgi, KBS, Okote, Chari and Karari) and contain Oldowan tools and 200 hominid fragments, primarily from the KBS, Okote and Chari tuffs. The notable hominid remains include KNM-ER 1470. Other remains include a partial pathological skeleton (KNM-ER 1808), two nearly complete crania (KNM-ER 3733 and KNM-ER 3883), parts of three other crania, nine partial mandibles, and many limb bones, all attributed to Homo erectus. Contemporary australopithecines (e.g. KNM-ER 406) have also been recovered. The paleoenvironment was probably a lake and floodplain with braided streams. Before 1975 known as the East Rudolf Research Project, now called East Turkana.

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