Late pliocene Homo and Oldowan tools from the Hadar Formation (Kada Hadar member), Ethiopia

William Kimbel, R. C. Walter, Donald Johanson, Kaye Reed, J. L. Aronson, Z. Assefa, Curtis Marean, G. G. Eck, R. Bobe, E. Hovers, Y. Rak, C. Vondra, T. Yemane, D. York, Y. Chen, N. M. Evensen, P. E. Smith