In 1938, at 70 years old, Broom was excavating at Kromdraai, South Africa and discovered pieces of a skull and teeth which resembled Dart's Australopithecus africanus find, but the skull had some "robust" characteristics.
Broom je 1938., u starosti od 70 godina, prilikom iskapanja u Kromdraaiju (Južnoafrička Republika) pronašao dijelove lubanje i zube koji su sličili Dartovom primjerku vrste Australopithecus africanus, ali je lubanja imala neke "robusne" karakteristike.