The bones are from Australopithecus sediba. The research places that pre-human branch of the evolutionary tree as the best candidate to be the ancestor of the human line, said Lee R. Berger of the University of Witwatersrand in South Africa.
http://www.msnbc.msn.com/id/44438221/ns/technology_and_science-science/#.Tmjqc-zlhQ0
This could alter things quite a bit.