JAVIER TRUEBA / MSF / SCIENCE PHOTO LIBRARY JAVIER TRUEBA / MSF / SCIENCE PHOTO LIBRARY
Australopithecus africanus skull (STS-71). This part of the skull of this specimen was discovered in 1947, in Sterkfontein, South Africa. In 1972, a lower jaw (STS-36, not shown) that was from the same location, was assigned to this specimen (see image C015/6798). Both fossils are thought to be around 2.5 million years old. A. africanus is one of several extinct species forming an early part of the human evolutionary tree.
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