Australopithecus

Discovery of an Australopithecus skull revealed a small primitive hominid, capable of upright walking and a closer relation to humans than to apes. These remain the earliest known hominids.
 Arthur Dart South Africa 1924 Australopithecus

Discovery of an Australopithecus skull revealed a small primitive hominid, capable of upright walking and a closer relation to humans than to apes. These remain the earliest known hominids.