found by Kamoya Kimeu in 1984 on the Nariokotome River west of Lake Turkana
, Kenya, dated to 1.6 mya
(above the 1.65 mya component
of the Okote tuff), and that contains hominid
remains of one male juvenile
(see Turkana boy
, KNM-WT 15000), assigned variously to Homo erectus or Homo ergaster.