Sterkfontein Dam Nature Reserve
Sterkfontein Dam, South Africa
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Coordinates: 25°58′02″S 27°39′45″E / 25.96716°S 27.66245°E / -25.96716; 27.66245
The Cradle of Humankind is a World Heritage Site first named by UNESCO in 1999, about 50 kilometres northwest of Johannesburg, South Africa in the Gauteng province. This site currently occupies 47,000 hectares (180 sq mi); it contains a complex of limestone caves, including the Sterkfontein Caves, where the 2.3-million year-old fossil Australopithecus africanus (nicknamed "Mrs. Ples") was found in 1947 by Dr. Robert Broom and John T. Robinson. The find helped corroborate the 1924 discovery of the juvenile Australopithecus africanus skull, "Taung Child", by Raymond Dart, at Taung in the North West Province of South Africa, where excavations still continue.
The name Cradle of Humankind reflects the fact that the site has produced a large number, as well as some of the oldest, hominin fossils ever found, some dating back as far as 3.5 million years ago.Sterkfontein alone has produced more than a third of early hominid fossils ever found prior to 2010.
In 1935 Robert Broom found the first ape-man fossils at Sterkfontein and began work at this site. In 1938 a young schoolboy, Gert Terrblanche, brought Raymond Dart fragments of a skull from nearby Kromdraai which later were identified as Paranthropus robustus. Also in 1938 a single ape-man tooth was found at the Cooper's site between Kromdraai and Sterkfontein. In 1948 the Camp-Peabody Expedition from the United States worked at Bolts Farm and Gladysvale looking for fossil hominids but failed to find any. Later in 1948 Robert Broom identified the first hominid remains from Swartkrans cave. In 1954 C.K. Brain began working at sites in the Cradle including Coopers and he soon would initiate his three decade work at Swartkrans cave which would result in the recovery of the second largest sample of hominid remains from the Cradle. The oldest controlled use of fire was also discovered at Swartkrans and dated to over 1 million years ago.
In 1966 Phillip Tobias began his excavations of Sterkfontein which are still continuing and are the longest continuously running fossil excavations in the world. In 1991 Lee Berger of the University of the Witwatersrand discovered the first hominid specimens from the Gladysvale site making this the first new early hominid site to be discovered in South Africa in 48 years. In 1994 Andre Keyser discovered fossil hominids at the site of Drimolen. In 1997 Kevin Kuykendall and Colin Menter of the University of the Witwatersrand found two fossil hominid teeth at the site of Gondolin. Also in 1997, the near-complete Australopithecus skeleton of "Little Foot", dating to around 3.3 million years ago (although more recent dates suggest it is closer to 2.5 million years ago), was discovered by Ron Clarke. In 2001 Steve Churchill of Duke University and Lee Berger found early modern human remains at Plovers Lake. Also in 2001 the first hominid fossils and stone tools were discovered in-situ at Coopers. In 2008, Lee Berger discovered the partial remains of two hominids (Australopithecus sediba) in the Malapa Fossil Site that lived between 1.78 and 1.95 million years ago.
In October of 2013, Lee Berger of the University of the Witwatersrand commissioned geologist Pedro Boshoff to investigate cave systems in the Cradle of Humankind for the express purpose of discovering more fossil hominin sites. Cavers Rick Hunter and Steven Tucker discovered fossil hominid fossils in a previously unexplored area of the Rising Star/Westminster Cave System assigned site designation UW-101. In November of 2013, Lee Berger led a joint expedition of the University of the Witwatersrand and National Geographic Society to the Rising Star Cave System near Swartkrans. In just three weeks of excavation, the six-woman international team of advance speleological scientists (K. Lindsay Eaves, Marina Elliott, Elen Feuerriegel, Alia Gurtov, Hannah Morris, and Becca Peixotto, chosen for their paleoanthropological and caving skills, as well as their small size, recovered over 1,200 specimens of a presently unidentified fossil hominin species. The site is still in the process of being dated. In the last days of the Rising Star Expedition, cavers Rick Hunter and Steven Tucker discovered additional fossil hominid material in another portion of the cave system. Preliminary excavations at this site, designated UW-102, have begun and yielded complete hominid fossil material of its own. It is unknown what the relationship of sites 101 and 102 is.
There are more than three dozen fossil-bearing caves in the Cradle of Humankind. Important sites include:
The hominin remains at the Cradle of Humankind are found in dolomitic caves and are oftenzencased in a mixture of limestone and other sediments called breccia and fossilized over time. Hominids may have lived all over Africa, but their remains are found only at sites where conditions allowed for the formation and preservation of fossils.
On 7 December 2005, then South African President Thabo Mbeki opened the new Maropeng Visitors Centre at the site.
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