Australopithecus bahrelghazali is a fossil hominin ( a human , or a human ancestor ) that was discovered in 1993 by the paleontologist Michel Brunet . Brunet found the fossil in the Bahr el Ghazal valley near Koro Toro , in Chad , in Africa and named it Abel . Australopithecus bahrelghazali is a fossil hominin that was first discovered in 1993 by the paleontologist Michel Brunet in the Bahr el Ghazal valley near Koro Toro , in Chad , that Brunet named Abel .