SK 48 was discovered in the debris pile at Swartkrans, which is a cave site in South Africa. SK 48 is the cranium of an adult Australopithecus robustus. Most of the skull (minus the lower jaw) is preserved. Although mostly in tact, some damage did occur when the specimen was removec by way of dynamite out of the limestone deposits. Preserved in the cranium were the right canine tooth and first premolar and all three left molars, indicating the individual was an adult at the time of death.