Stillbay

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Stillbay
Selected Stillbay sites from the ROAD database (CC BY-SA 4.0 ROCEEH)

The Stillbay or Still Bay industry was named by archaeologists A. J. H. Goodwin and C. van Riet Lowe in 1929, [1] and is a Middle Stone Age stone tool manufacturing style after the site of Stilbaai (also called Still Bay) in South Africa where it was first described. It may have developed from the earlier Acheulian types. In addition to Acheulian stone tools, bone and antler picks were also used.

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Its start and end are calculated at 71.9 ka and 71.0 ka. At present, too few data exist to limit the 95% confidence intervals of these date to more than 4 to 5 ky. However, available data are consistent with a duration of less than 1 ky. [2]

Sampson in 1974 questioned its existence on the grounds that sites were not properly described and they lacked stratigraphic integrity [3] However, more recent work from sites such as Blombos Cave [4] and Sibudu Cave [5] attest to its existence.

It is broadly analogous to the Mousterian culture in Europe.

Olduvai Gorge has within its many ages of tools, some of the Stillbay variety. [6]

Tools and fire

Researchers have concluded that Stillbay people prepared the silcrete stone out of which they made their stone tools with preheating in human made fire to increase its workability. [7] Experiments involved slowly heating silcrete stones to ~350 °C. Thermoluminescence confirmed that all stones analysed (limited to 26 in number due this being a destructive process) had been heated to this temperature. [7]

Heat treatment not only increases the length of flakes that can be removed from about a half-inch to 2 inches but makes them thinner, and sharper as they can remove flakes at angles nearly parallel to the stone's surface. Heat treatment allows greater precision of fracture due to increasing the uniformity of the stone's fracture response when hit. [8]

This research identifies this not only with Stillbay sites dated to 72,000 BP but ones that could be as old as 164,000 BP. [7]

Kyle Brown, one of the scientists responsible for this research has been quoted as making a link with the existence of language: "These people were extremely smart ... I don't think you could have passed down these skills from generation to generation without language." [9]

Stone tool industry

A paper announcing the Still Bay Industry was published on January 5, 2007. This paper details the history of excavations at the site of Sibudu Cave, linking the levels of artifacts found beneath the higher level, the Howiesons Poort Industry, to sites in South Africa, such as Blombos Cave and Hollow Rock Shelter, establishing a wider geographic range to an industry that was once thought to be limited to the western areas of South Africa. [10] Another site, Umhlatuzana Rock Shelter, located in Kwazulu-Natal, South Africa has been linked to the Still Bay Industry, this based on comparison to the recent descriptions of Blombos Cave and Sibudu Cave. Serrated pieces are found at this site as well, potentially older or a regional variation. [11]

Related Research Articles

<span class="mw-page-title-main">Early modern human</span> Old Stone Age Homo sapiens

Early modern human (EMH), or anatomically modern human (AMH), are terms used to distinguish Homo sapiens that are anatomically consistent with the range of phenotypes seen in contemporary humans, from extinct archaic human species. This distinction is useful especially for times and regions where anatomically modern and archaic humans co-existed, for example, in Paleolithic Europe. Among the oldest known remains of Homo sapiens are those found at the Omo-Kibish I archaeological site in south-western Ethiopia, dating to about 233,000 to 196,000 years ago, the Florisbad site in South Africa, dating to about 259,000 years ago, and the Jebel Irhoud site in Morocco, dated about 315,000 years ago.

<span class="mw-page-title-main">Behavioral modernity</span> Transition of human species to anthropologically modern behavior

Behavioral modernity is a suite of behavioral and cognitive traits that distinguishes current Homo sapiens from other anatomically modern humans, hominins, and primates. Most scholars agree that modern human behavior can be characterized by abstract thinking, planning depth, symbolic behavior, music and dance, exploitation of large game, and blade technology, among others. Underlying these behaviors and technological innovations are cognitive and cultural foundations that have been documented experimentally and ethnographically by evolutionary and cultural anthropologists. These human universal patterns include cumulative cultural adaptation, social norms, language, and extensive help and cooperation beyond close kin.

<span class="mw-page-title-main">Sterkfontein</span> Archaeological site in South Africa

Sterkfontein is a set of limestone caves of special interest in paleoanthropology located in Gauteng province, about 40 kilometres (25 mi) northwest of Johannesburg, South Africa in the Muldersdrift area close to the town of Krugersdorp. The archaeological sites of Swartkrans and Kromdraai are in the same area. Sterkfontein is a South African National Heritage Site and was also declared a World Heritage Site in 2000. The area in which it is situated is known as the Cradle of Humankind. The Sterkfontein Caves are also home to numerous wild African species including Belonogaster petiolata, a wasp species of which there is a large nesting presence.

<span class="mw-page-title-main">Wilton culture</span>

Wilton is a term archaeologists use to generalize archaeological sites and cultures that share similar stone and non-stone technology dating from 8,000-4,000 years ago. Archaeologists often refer to Wilton as a technocomplex, or Industry. Technological industries are defined by a common tradition of stone tool assemblages, but these technological industries extend to common cultural behaviors. As such, archaeologists use these industries to define a discrete cultural taxonomy. However, technological industries have the potential to generalize different cultures and communities at regional scales that, in more local settings, are distinguishable in both technology and cultural behaviors.

<span class="mw-page-title-main">African archaeology</span> Archaeology conducted in Africa

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<span class="mw-page-title-main">Blombos Cave</span> Archaeological site in Western Cape, South Africa

Blombos Cave is an archaeological site located in Blombos Private Nature Reserve, about 300 km east of Cape Town on the Southern Cape coastline, South Africa. The cave contains Middle Stone Age (MSA) deposits currently dated at between c. 100,000 and 70,000 years Before Present (BP), and a Late Stone Age sequence dated at between 2000 and 300 years BP. The cave site was first excavated in 1991 and field work has been conducted there on a regular basis since 1997, and is ongoing.

<span class="mw-page-title-main">Middle Stone Age</span> Period in African prehistory

The Middle Stone Age was a period of African prehistory between the Early Stone Age and the Late Stone Age. It is generally considered to have begun around 280,000 years ago and ended around 50–25,000 years ago. The beginnings of particular MSA stone tools have their origins as far back as 550–500,000 years ago and as such some researchers consider this to be the beginnings of the MSA. The MSA is often mistakenly understood to be synonymous with the Middle Paleolithic of Europe, especially due to their roughly contemporaneous time span; however, the Middle Paleolithic of Europe represents an entirely different hominin population, Homo neanderthalensis, than the MSA of Africa, which did not have Neanderthal populations. Additionally, current archaeological research in Africa has yielded much evidence to suggest that modern human behavior and cognition was beginning to develop much earlier in Africa during the MSA than it was in Europe during the Middle Paleolithic. The MSA is associated with both anatomically modern humans as well as archaic Homo sapiens, sometimes referred to as Homo helmei. Early physical evidence comes from the Gademotta Formation in Ethiopia, the Kapthurin Formation in Kenya and Kathu Pan in South Africa.

<span class="mw-page-title-main">Silcrete</span>

Silcrete is an indurated soil duricrust formed when surface soil, sand, and gravel are cemented by dissolved silica. The formation of silcrete is similar to that of calcrete, formed by calcium carbonate, and ferricrete, formed by iron oxide. It is a hard and resistant material, and though different in origin and nature, appears similar to quartzite. As a duricrust, there is potential for preservation of root structures as trace fossils.

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<span class="mw-page-title-main">Art of the Middle Paleolithic</span>

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<span class="mw-page-title-main">Sibudu Cave</span> Rock shelter with earliest examples of modern human technology in KwaZulu-Natal, South Africa

Sibudu Cave is a rock shelter in a sandstone cliff in northern KwaZulu-Natal, South Africa. It is an important Middle Stone Age site occupied, with some gaps, from 77000 years ago to 38000 years ago.

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<span class="mw-page-title-main">Diepkloof Rock Shelter</span> Rock shelter in South Africa

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Lyn Wadley is an honorary professor of archaeology, and also affiliated jointly with the Archaeology Department and the Institute for Evolution at the University of the Witwatersrand in Johannesburg, South Africa.

<span class="mw-page-title-main">History of Southern Africa</span> History of Southern African region

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<span class="mw-page-title-main">Prehistoric Southern Africa</span> Prehistory of the Southern African subregion of the African continent

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References

  1. Goodwin, AJH; van Riet Lowe, C (1929). "The Stone Age cultures of South Africa". Ann. S. Afr. Mus. 27: 1–289.
  2. Jacobs, Z; Roberts, RG; Galbraith, RF; Deacon, HJ; Grün, R; Mackay, A; Mitchell, P; Vogelsang, R; Wadley, L (2008). "Ages for the Middle Stone Age of southern Africa: implications for human behavior and dispersal". Science. 322 (5902): 733–5. CiteSeerX   10.1.1.469.1059 . doi:10.1126/science.1162219. PMID   18974351.
  3. Sampson GS. (1974). The Stone Age Archaeology of Southern Africa. Academic Press, New York.
  4. Grine, FE; Henshilwood, CS (2002). "Additional human remains from Blombos Cave, South Africa: (1999-2000 excavations)". J Hum Evol. 42 (3): 293–302. doi:10.1006/jhev.2001.0525. PMID   11846532.
  5. Wadley, L (2007). "Announcing a Still Bay industry at Sibudu Cave, South Africa". J Hum Evol. 52 (6): 681–9. doi:10.1016/j.jhevol.2007.01.002. PMID   17337038.
  6. Langer, William L., ed. (1972). An Encyclopedia of World History (5th ed.). Boston, MA: Houghton Mifflin Company. pp.  9. ISBN   978-0-395-13592-1.
  7. 1 2 3 Brown, KS; Marean, CW; Herries, AI; Jacobs, Z; Tribolo, C; Braun, D; Roberts, DL; Meyer, MC; Bernatchez, J (2009). "Fire As an Engineering Tool of Early Modern Humans". Science. 325 (5942): 859–862. doi:10.1126/science.1175028. hdl: 11422/11102 . PMID   19679810.
  8. Webb, J. Domanski M. (2009). "Fire and Stone". Science. 325 (5942): 820–821. doi:10.1126/science.1178014. PMID   19679799.
  9. Callaway. E. (13 August 2009) Earliest fired knives improved stone age tool kit. New Scientist, online
  10. Wadley, Lyn (2007-06-01). "Announcing a Still Bay industry at Sibudu Cave, South Africa". Journal of Human Evolution. 52 (6): 681–689. doi:10.1016/j.jhevol.2007.01.002. ISSN   0047-2484.
  11. Lombard, Marlize; Wadley, Lyn; Jacobs, Zenobia; Mohapi, Moleboheng; Roberts, Richard G. (2010-07-01). "Still Bay and serrated points from Umhlatuzana Rock Shelter, Kwazulu-Natal, South Africa". Journal of Archaeological Science. 37 (7): 1773–1784. doi:10.1016/j.jas.2010.02.015. ISSN   0305-4403.