Identification of H. gautengensis was based on partial skulls, several jaws, teeth and other bones found at various times and cave sites in the Cradle of Humankind. The oldest specimens are those from Swartkrans Member 1 (Hanging Remnant) between 1.9 and 1.8 Ma .[3] The type specimen StW 53 from Sterkfontein is dated to sometime between 1.8 and 1.5 Ma.[4] A specimen from Gondolin Cave is dated to ~1.8 Ma.[5][6] Other specimens from Sterkfontein Member 5 date to between 1.4 and 1.1 Ma, with the youngest specimens from Swartkrans Member 3 dated to sometime between 1.0 and 0.6 Ma.[7]