Sterkfontein (Afrikaans for strong spring) is a set of limestone caves of special interest to paleo-anthropologists located Northwest of Johannesburg, South Africa near the town of Krugersdorp. The archaeological sites of Swartkrans and Kromdraai are in the same area.

A number of early hominid remains have been found at the site over the last few decades.

Sterkfontein was declared a World Heritage Site in 2000 and the area in which it is situated, was named the Cradle of Humankind.

Modern excavation of the caves began in the late 1890s by limestone miners who noticed the fossils and brought them to the attention of scientists. It was not until 1936 that students of Professor Raymond Dart and Dr. Robert Broom from Witwatersrand University began concerted excavations.

These excavations revealed many early hominids. In 1936, the Sterkfontein caves yielded the first adult Australopithecine, substantially strengthening Raymond Dart's claim that the skull known as the Taung child (Australopithecus africanus) was a human ancestor. There was a pause in excavation during World War II, but after the war Dr. Broom continued excavations. In 1947 he found the almost complete skull of an adult female Australopithecus africanus (or possibly that of an adolescent male). Broom initially named the skull Plesianthropus transvaalensis (near-man from Transvaal), but it became better known by its nickname, Mrs. Ples. Mrs. Ples is estimated to be between 2.6 and 2.8 million years old placing it in the Pliocene.

Excavations continue to this day and finds now total some 500 hominids, making Sterkfontein the richest site in the world for early hominids.

External link

• The Cradle of Humankind

Archaeological sites in South Africa | Pliocene | Caves of South Africa | Limestone caves | Geography of South Africa

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