EP Gallery: Middle Acheulian -- Olorgesailie, Olduvai Gorge, Near East, Abbevillian (c. 1.0 MYA to 500,000 BP) / h)olorgbif
Two cleavers and a biface from Olorgesailie, Kenya, dating from about 750,000 to 1 million years ago. It is interesting that at Olorgesailie there appear to be two frequent length categories, one about 17-22 cm., the other about 11-17 cm., with the smaller one's 'nosed' or 'pointed.' The reasons for this are not known.
Photo © Glynn Isaac. Isaac, G. (1977). Olorgesailie: Archaeological studies of a Middle Pleistocene lake basin in Kenya. Chicago: University of Chicago.