Paranthropus aethiopicus or Australopithecus aethiopicus is an extinct species of hominid, one of the robust australopithecines. The finding discovered in 1985 by Alan Walker in West Turkana, Kenya, is known as the 'Black Skull' due to the dark coloration of the bone, caused by high levels of manganese. Paranthropus aethiopicus is one of the earliest examples of robust pliocene hominids.