Smallest Homo erectus cranium in Africa and diverse stone tools found at Gona, Ethiopia
(PHYSorg.com Archaeology & Fossils)

An international research team led by scientists from the U.S. and Spain, and including a University of Michigan geologist, has discovered a nearly complete cranium of an early human ancestor, estimated to about 1.5 million years ago, and a partial cranium dated to about 1.26 million years ago, from the Gona study area in Ethiopia`s Afar State.