Page "Oldowan" Paragraph 20

Even though Olduvai Gorge is the type site, Oldowan tools from here are not the oldest known examples.

They occur in Beds I – IV.

Bed I, dated 1. 85 mya to 1. 7 mya, contains Oldowan and fossils of Paranthropus boisei as well as Homo habilis, as does Bed II, 1. 7 – 1. 2 mya.

H. habilis gives way to Homo erectus at about 1. 6 mya but P. boisei goes on.

Oldowan continues to Bed IV at 800, 000 to 600, 000 before present ( BP ).