Several species, including Australopithecus garhi, Australopithecus sediba, Australopithecus africanus, and Australopithecus afarensis, have been proposed as the direct ancestor of the Homo lineage.
Beberapa spesies, termasuk Australopithecus garhi, Australopithecus sediba, Australopithecus africanus dan Australopithecus afarensis, telah diajukan sebagai turunan langsung dari garis keturunan Homo.