Technological Trends in the Middle Stone Age of South Africa between MIS 7 and MIS 3.

Technological innovations; Prehistoric antiquities; Isotopes; Mesolithic Period; Raw materials; Howiesons Poort Site (South Africa)

The range of technological elements that marks the Middle Stone Age originated more than 300,000 years ago and formed the basic tool kit for an extended period of time. No spatial and chronological patterns can be identified from the Early Middle Stone Age until marine isotope stage (MIS) 5, and there is no cumulative trend of increasing complexity and diversity; instead, periods of complexity come and go. The Howiesons Poort and Still Bay techno-complexes, broadly associated with MIS 4, are recognized across various ecological zones of South Africa. These techno-complexes contain relatively more retouched tools and exhibit heightened levels of what is described as innovative practices. The Howiesons Poort is the best understood industry in the Middle Stone Age of South Africa. Its unifying technological characteristic is the almost exclusive use of a blade and bladelet production system, but subtle changes in types of backed artefacts, other retouched tools, and raw material exploitation patterns occur through time. Technological preferences change in the ensuing MIS 3 period, and other strategies and implement types become popular, particularly unifacial points, but trends once again are less clear. This historical review of the technological diversity in the Middle Stone Age of South Africa emphasizes that the roots of some innovations may lie in the earlier Middle Stone Age and that innovation is best understood within the context of local historical trajectories of technological change in South Africa. [ABSTRACT FROM AUTHOR]