Minnaar's Cave, or simply Minnaar, is a

palaeontological Paleontology, also spelled as palaeontology or palæontology, is the scientific study of the life of the past, mainly but not exclusively through the study of fossils. Paleontologists use fossils as a means to classify organisms, measure geolo ...

site located in the

Cradle of Humankind The Cradle of Humankind is a paleoanthropological site that is located about northwest of Johannesburg, South Africa, in the Gauteng province. Declared a World Heritage Site by UNESCO in 1999, the site is home to the largest known concentrat ...

World Heritage Site World Heritage Sites are landmarks and areas with legal protection under an treaty, international treaty administered by UNESCO for having cultural, historical, or scientific significance. The sites are judged to contain "cultural and natural ...

Gauteng Gauteng ( , ; Sotho-Tswana languages, Sotho-Tswana for 'place of gold'; or ) is one of the nine provinces of South Africa. Situated on the Highveld, Gauteng is the smallest province by land area in South Africa. Although Gauteng accounts f ...

province, South Africa. Lost after its discovery in the 1930s, its location was rediscovered in 2009. It is known for its well-preserved

jackal Jackals are Canidae, canids native to Africa and Eurasia. While the word has historically been used for many canines of the subtribe Canina (subtribe), canina, in modern use it most commonly refers to three species: the closely related black-b ...

skulls, dating to the

Plio-Pleistocene The Plio-Pleistocene is an informally described geological pseudo-period, which begins about 5 million years ago (Mya) and, drawing forward, combines the time ranges of the formally defined Pliocene and Pleistocene epochs—marking from about 5&n ...

at least 2 million years ago.

Geography

Minnaar's Cave is located about north-northeast of

Sterkfontein Sterkfontein (Afrikaans for ''Strong Spring'') is a set of limestone caves of special interest in paleoanthropology located in Gauteng province, about northwest of Johannesburg, South Africa in the Muldersdrift area close to the town of K ...

and from

Kromdraai Kromdraai Conservancy is a protected conservation park located to the south-west of Gauteng province in north-east South Africa. It is in the Muldersdrift area not far from Krugersdorp. Etymology Its name is derived from Afrikaans meaning "Cr ...

, palaeoarchaeological sites also in the Cradle of Humankind. It covers an area of , making it the smallest known site in the Cradle of Humankind. It is bordered to the south by the Blaauwbank River. The site is dated to the

, about 2 Ma.

History

Minnaar's Cave area was first used as a lime mine in the early 20th century. A lime-burning kiln from this era is still on the site. There is also a graveyard dating back to the 1920s that is unrelated to the mine. Palaeontologist

Robert Broom Robert Broom Fellow of the Royal Society, FRS FRSE (30 November 1866 6 April 1951) was a British- South African medical doctor and palaeontologist. He qualified as a medical practitioner in 1895 and received his DSc in 1905 from the University ...

first explored Minnaar's Cave sometime between 1936 and 1939 during his expeditions into the

Transvaal Transvaal is a historical geographic term associated with land north of (''i.e.'', beyond) the Vaal River in South Africa. A number of states and administrative divisions have carried the name ''Transvaal''. * South African Republic (1856–1902; ...

region in search of

hominid The Hominidae (), whose members are known as the great apes or hominids (), are a taxonomic family of primates that includes eight extant species in four genera: '' Pongo'' (the Bornean, Sumatran and Tapanuli orangutan); '' Gorilla'' (the ...

fossils, but Broom only listed its location as "a cave about a mile away from

". Broom recovered 148 specimens from Minnaar's Cave, including a fossilized '' Thos antiquus'' (jackal) skull, which has been extensively studied by palaeontologists as the species's

type specimen In biology, a type is a particular wikt:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally associated. In other words, a type is an example that serves to ancho ...

, albeit with no precise knowledge of its exact origins. Researchers attempted to rediscover the site multiple times over the subsequent decades, but the vague descriptions and field notes caused confusion. Different accounts variably placed Minnaar's Cave north, west, and east of Sterkfontein. It was theorized that Minnaar's Cave was actually another site called Hadeco, but this was dismissed as Hadeco was too distant from Sterkfontein. In August 2009, a team from the

Ditsong National Museum of Natural History The Ditsong National Museum of Natural History, formerly the Transvaal Museum, is a natural history museum situated in Pretoria, South Africa. It is located on Paul Kruger Street, between Visagie and Minnaar Streets, opposite the Pretoria City H ...

Pretoria Pretoria ( ; ) is the Capital of South Africa, administrative capital of South Africa, serving as the seat of the Executive (government), executive branch of government, and as the host to all foreign embassies to the country. Pretoria strad ...

explored a site on private property that corresponded with descriptions of Minnaar given by Broom and later researchers.; it was just north of Sterkfontein and yielded fossils similar to those cataloged in the 1930s. Analysis of samples taken from this spot confirmed that this was indeed the lost Minnaar's Cave. Most specimens from Minnaar are stored at the Ditsong National Museum of Natural History.

Species

Most of the specimens recovered from Minnaar's Cave have yet to be extracted from their

breccia Breccia ( , ; ) is a rock composed of large angular broken fragments of minerals or Rock (geology), rocks cementation (geology), cemented together by a fine-grained matrix (geology), matrix. The word has its origins in the Italian language ...

matrices Matrix (: matrices or matrixes) or MATRIX may refer to: Science and mathematics * Matrix (mathematics), a rectangular array of numbers, symbols or expressions * Matrix (logic), part of a formula in prenex normal form * Matrix (biology), the ...

; however, most of the fossils belong to

canids Canidae (; from Latin, ''canis'', "dog") is a biological family of caniform carnivorans, constituting a clade. A member of this family is also called a canid (). The family includes three subfamilies: the Caninae, and the extinct Borophaginae ...

primate Primates is an order (biology), order of mammals, which is further divided into the Strepsirrhini, strepsirrhines, which include lemurs, galagos, and Lorisidae, lorisids; and the Haplorhini, haplorhines, which include Tarsiiformes, tarsiers a ...

s, bovids, equus, and

microfauna Microfauna ( and ) are microscopic animals and organisms that exhibit animal-like qualities and have body sizes that are usually <0.1 mm. Microfauna are represented in the animal kingdom (e.g.

from the

era. Most notable of these are '' Thos antiquus'' and '' Canis mesomelas'' jackal crania. Other species found in the Minnaar's Cave collections include '' Chasmaporthetes silberbergi'' (hyenas); '' Papio angusticeps'', an extinct species of baboon;

Alcelaphinae The subfamily Alcelaphinae (or Tribe (biology), tribe Alcelaphini), of the family Bovidae, contains the wildebeest, tsessebe, topi, hartebeest, blesbok and bontebok, and several other related species. Depending on the classification, there are 6� ...

, possibly

springbok The springbok or springbuck (''Antidorcas marsupialis'') is an antelope found mainly in south and southwest Africa. The sole member of the genus (biology), genus ''Antidorcas'', this bovid was first Species description, described by the Germa ...

s; several species of the horse genus ''Equus'', particularly the extinct Cape horse; and '' Dinofelis barlowi'', a sabre-toothed cat.

References

{{Greater Johannesburg, natural Caves of South Africa Landforms of Gauteng Pleistocene paleontological sites of Africa Pliocene paleontological sites of Africa Paleontology in South Africa Mogale City Local Municipality Archaeological sites of Southern Africa Cradle of Humankind