did ardipithecus us tools
Later, between 1999 and 2003, a team headed by Sileshi Semaw, of Indiana University, discovered fragmentary remains from nine separate Ardipithecus ramidus individuals at As Duma in the Kada Gona valley on the western margin of the Afar.Between apes and australopithecines. recent paper (Harmand et al. 2015) reports the discovery of the oldest known tools, but dating to between 3.11 and 3.33, they are at least a million years younger than Ardipithecus ramidus. mya. Previously, the oldest known stone tools were only from about 2.5 mya (Semaw et al.