Analysis announced in May 2010 of a partial skull found decades earlier in South Africa's Sterkfontein Caves in Gauteng near Johannesburg identified the species, named Homo gautengensis by anthropologist Dr. Darren Curnoe of the UNSW School of Biological, Earth and Environmental Sciences. The species has been considered by Lee Berger and co-workers to be an invalid taxon because it conflicts with their interpretations of Australopithecus sediba. The species' first remains were discovered in the 1930s by Broom and Robinson, and the most complete skull (species Holotype Stw 53) was recovered in 1977 and was argued to belong to the species Homo habilis.[2] The type specimen has been discussed in some refereed publications as being synonymous with A. africanus, but most analyses have considered it to belong in the genus Homo, and several have suggested it sampled a novel species prior to Curnoe's description.