Further identification of Homo gautengensis was based on partial skulls, several jaws, teeth and other bones found at various times and cave sites in South Africa’s Cradle of Humankind. The oldest specimens are those from Swartkrans between 1.9 and 1.8 million years ago. The Sterkfontain specimen is dated between 1.8 and 1.5 million years ago, and the Gondolin Cave 1.8 million years ago. The youngest specimens from Swartkrans are dated to sometime between 1.0 and 0.6 million years ago.
According to Curnoe, Homo gautengensis had big teeth suitable for chewing plant material, was small-brained and large-toothed, and was probably an ecological specialist, consuming more vegetable matter than Homo erectus, Homo sapiens and probably Homo habilis. It apparently produced and used stone tools and may even have made fire, as there is evidence for burnt animal bones associated with Homo gautengensis' remains. Standing just over 0.91 meters tall and weighing about 50 kg, it walked on two feet when on the ground, but probably spent considerable time in trees, perhaps feeding, sleeping and escaping predators. It probably lacked speech and language skills.
Homo gautengensis was a close relative of Homo sapiens but not necessarily a direct ancestor. It would have lived at the same time and in the same place as Australopithecus sediba, the latter being more primitive [and therefore less likely to be the ancestor of humans]. Indeed, there would have been a number of distinctive, perhaps short-lived, species of proto-humans living in both eastern and southern Africa in the period between 2 and 1 million years ago [Groves 2010].