Site: Nariokotome Species: H. erectus Year of Discovery: 1984  Discovered by: Kamoya Kimeu  Geological Age: About 1.6 million years old  1.5 to 1.6 million years old  Cultural Attribution: Acheulean  Developmental Age: 8-9 Years Old  7-11 Years Old  Presumed Sex: Male  Preserved Skeletal Party: Skeleton Preservation: Nearly complete Preservation Details: The specimen comprises 108 bones, making it the most complete early human skeleton discovered.  The only major omissions are the hands and feet.  Anatomical Description: Additional Notes:
Source: Encyclopedia of Human Evolution and Prehistory: Second Edition
Upper Lower Pleistocene member of the Nachukui Formation, western Turkana Basin, Kenya. It spans the interval from Lower Nariokotome Tuff (1.3 Ma) to a level above Silbo Tuff (0.74 Ma), and it is temporally equivalent to all but the basal part of the Chari Member of the Koobi Fora Formation and to Member L of the Shungura Formation.
Nariokotome Site 3 (NK3)
Lower Pleistocene hominin site in western Turkana Basin, Kenya. Nariokotome is a major ephemeral stream west of Lake Turkana at about 4’10’N, on the south back of which a nearly complete skeleton, KNM-WT-15000, was found in 1984. Only distal hand and foot elements are missing from the remains of a young male, ca. 160 cm tall at death, identified as Homo erectus (or H. ergaster). The site is in flood-deposited brown mudstone of the Natoo Member of the Nachukui Formation. The fossiliferous level overlies a correlative of the Lower Kobi Fora Tuff and underlies the Lokapetamoi Tuff, neither of which has been directly dated. The human remains are estimated to date 1.53 +- 0.05 Ma based on extrapolation from sedimentation rates between higher and lower dated levels, such as the Nariokotome Tuff (dated to 1.33 +- 0.05 Ma) and the KBS Tuff (1.89 +- 0.02 Ma).