BUSHMAN ROCK SHELTER (LIMPOPO, SOUTH AFRICA): A PERSPECTIVE FROM THE EDGE OF THE HIGHVELD

Edge convergence, which is typical for pointed tools, is a major morphological feature contributing to the definition of the African Middle Stone Age (MSA)Middle Stone Age (MSA). The multifaceted character of points might be the key to their success and for their recurrent adoption by prehistoric populations. Whether MSAMiddle Stone Age (MSA) points represent a good proxy to identify populations and to discuss their interconnectedness is a question to address at several scales of observation. In this paper, we develop an approach on technological point production based on the collections from Bushman Rock ShelterBushman Rock Shelter (Limpopo Province, South Africa)South Africa, relying on a combined study of technologyTechnology and tool use. The large-scale comparison of our results with other MIS 5Marine Isotope Stage (MIS)MIS 5 occurrences in southern African show similar technological and use-wearUsewear (use-wear) patterns, indicating regionally-specific features. We emphasize the limits of current knowledge and the future research goals to be developed in order to better serve the interpretation of cultural contacts or convergent evolutions between ancient groups during this period of the MSAMiddle Stone Age (MSA).

In the past few decades, a diverse array of research has emphasized the precocity of technically advanced and symbolic practices occurring during the southern African Middle Stone Age. However, uncertainties regarding the regional chrono-cultural framework constrain models and identification of the cultural and ecological mechanisms triggering the development of such early innovative behaviours. Here, we present new results and a refined chronology for the Pietersburg, a techno-complex initially defined in the late 1920’s, which has disappeared from the literature since the 1980’s. We base our revision of this techno-complex on ongoing excavations at Bushman Rock Shelter (BRS) in Limpopo Province, South Africa, where two Pietersburg phases (an upper phase called ‘21’ and a lower phase called ‘28’) are recognized. Our analysis focuses on the ‘28’ phase, characterized by a knapping strategy based on Levallois and semi-prismatic laminar reduction systems and typified by the presence of end-scrapers. Luminescence chronology provides two sets of ages for the upper and lower Pietersburg of BRS, dated respectively to 73±6ka and 75±6ka on quartz and to 91±10ka and 97±10ka on feldspar, firmly positioning this industry within MIS5. Comparisons with other published lithic assemblages show technological differences between the Pietersburg from BRS and other southern African MIS5 traditions, especially those from the Western and Eastern Cape. We argue that, at least for part of MIS5, human populations in South Africa were regionally differentiated, a process that most likely impacted the way groups were territorially and socially organized. Nonetheless, comparisons between MIS5 assemblages also indicate some typological similarities, suggesting some degree of connection between human groups, which shared similar innovations but manipulated them in different ways. We pay particular attention to the end-scrapers from BRS, which represent thus far the earliest documented wide adoption of such tool-type and provide further evidence for the innovative processes characterizing southern Africa from the MIS5 onwards.

Extending the chronology of deposits at Blombos Cave, South Africa, back to 140 ka using optical dating of single and multiple grains of quartz

This paper describes the results of the 1974 excavations at Porc Epic Cave, Dire Dawa. Following a summary of Dr M.A.J. Williams' interpretation of the stratigraphic succession and geological history of the cave and its contained deposits, the cultural sequence is described and an explanatory model presented. The 1974 excavation showed the Middle Stone Age layers to be sealed under a massive dripstone, except in the front part of the cave where erosion and later deposition had produced the seeming mixing of Middle and Later Stone Age artifacts observed by the 1933 excavators. Artifacts are associated with comminuted and often burnt bone round what appear to be hearths. Tools consist predominantly of points, scrapers and edge damaged blade and flake forms. The specialized nature of the retouched and utilized tools, together with the relative inaccessibility of the cave and the comminuted nature of the bone waste, suggest the possible use of the cave as a hunting camp at seasons when game migrated into the escarpment from the Afar Plains. The wide-ranging habits of the occupants are attested by the presence of obsidian and basalt artifacts, the raw material for which is not found in the immediate vicinity of the site. On the basis of the human jaw fragment discovered in 1933, the Middle Stone Age occupants of the cave are said to show both neanderthal and non-neanderthal features. Hydration dates for obsidian artifacts from the Middle Stone Age deposit indicate that the cave was occupied between about 61,000 and 77,500 bp. These results confirm that the Proc Epic occurrences are of comparable age to those from Middle Stone Age localities in other parts of the continent.

Burned bone in the Howieson’s Poort and post-Howieson’s Poort Middle Stone Age deposits at Sibudu (South Africa): behavioral and taphonomic implications

Geomorphology and geo-archeology at Elandsbaai Western Cape, South Africa

The examination of lithic material from the late Early Stone Age (ESA) and Middle Stone Age (MSA) levels of Kudu Koppie (KK), Limpopo Province (South Africa) has revealed a range of raw material exploitation patterns and lithic technology. Situated on an escarpment within close proximity to the modern day Limpopo River, and given the high concentration of raw material sources within easy access of the site, KK offered an ideal environment for use by early human groups. This paper reviews the results of a refitting study of material associated with four types of raw material from four out of ten excavated squares at KK. The results demonstrate evidence for a range of technological approaches that are, in some cases, associated with differential use of various lithic materials. In addition, the analysis of the KK refits offers high-resolution insights into the unique qualities of individual technological events including the recycling of previously exploited nodules and, through additional flaking, the co-opting and alteration of one type of tool for the purpose of producing a second form of tool. Moreover, this paper also clearly demonstrates the applicability and value of refitting large Early and Middle Stone Age assemblages, thus offering interpretations concerning early prehistoric technological behaviour that would otherwise be rarely revealed.

Cosmogenic nuclide age constraints on Middle Stone Age lithics from Niassa, Mozambique

BackgroundThe archaeological incidence of ancient human faecal material provides a rare opportunity to explore the taxonomic composition and metabolic capacity of the ancestral human intestinal microbiome (IM). Here, we report the results of the shotgun metagenomic analyses of an ancient South African palaeo-faecal specimen.MethodsFollowing the recovery of a single desiccated palaeo-faecal specimen from Bushman Rock Shelter in Limpopo Province, South Africa, we applied a multi-proxy analytical protocol to the sample. The extraction of ancient DNA from the specimen and its subsequent shotgun metagenomic sequencing facilitated the taxonomic and metabolic characterisation of this ancient human IM.ResultsOur results indicate that the distal IM of the Neolithic ‘Middle Iron Age’ (c. AD 1460) Bantu-speaking individual exhibits features indicative of a largely mixed forager-agro-pastoralist diet. Subsequent comparison with the IMs of the Tyrolean Iceman (Ötzi) and contemporary Hadza hunter-gatherers, Malawian agro-pastoralists and Italians reveals that this IM precedes recent adaptation to ‘Western’ diets, including the consumption of coffee, tea, chocolate, citrus and soy, and the use of antibiotics, analgesics and also exposure to various toxic environmental pollutants.ConclusionsOur analyses reveal some of the causes and means by which current human IMs are likely to have responded to recent dietary changes, prescription medications and environmental pollutants, providing rare insight into human IM evolution following the advent of the Neolithic c. 12,000 years ago.E_CXsNG9ctE_c_B9sn31A9Video Abtract.

Refitting evidence for the stratigraphic integrity of the Kudu Koppie Early to Middle Stone Age site, northern Limpopo Province, South Africa

<p>South Africa today represents the epitome of human origins research on the continent. However, South Africa generally lacks long continuous lake sediment records and long-term continental response to climate change and its linkages to the oceans, ice sheets and human evolution has been extrapolated from marine cores off its coasts. This has resulted in the dependence on archaeological deposits to infer past climates and environments despite their shortcomings. To this end, the application of phytolith analysis (plant silica) to understand early hunter-gatherer plant use, their way of life and their environments in terms of vegetation and climate is taking shape at various archaeological sites in South Africa. Phytoliths are hard and resistant to mechanical and chemical stress and can survive in soils for thousands of years making them an important tool for palaeoenvironmental reconstructions. Here, I discuss phytolith data from three key Middle Stone Age sites in the Summer Rainfall Region (Sibudu cave, Bushman rockshelter and Umhlatuzana rockshelter) that preserve phytoliths in their sediment deposits and show how it provides new or complimentary and supplementary data to existing proxies at these sites and its limitations in reconstructing past vegetation and in turn inferring past climates.</p>

Using burned animal bone to look at Middle Stone Age occupation and behavior

Middle and Later Stone Age large mammal and tortoise remains from Die Kelders Cave 1, Western Cape Province, South Africa

The Southern African Stone Age covers the longest period in human history, that is, the last three million years of human evolution and adaptation in a region south of the 18th parallel south. The region includes the countries of Botswana, Lesotho, Mozambique, Namibia, South Africa, Swaziland, and Zimbabwe, with a northern border marked by the Kunene River between Angola and Namibia, the Cuando River on the borders of Angola, Namibia, and Botswana, and the Zambezi River. It is divided into three main phases, known as Early, Middle, and Later Stone Age. The Early Stone Age had its beginning about three million years ago with the development of Australopithecus, found in South Africa in the region called the Cradle of Humankind. The earliest stone tools in the region were discovered in the cave of Sterkfontein and are dated to around two million years ago. These first stone tools, which include choppers, polyhedrons, and subspheroids, among other artifacts, are part of an industrial complex known as the Oldowan, which lasted for a few hundred thousand of years. It was followed by the Acheulean, known by its unique large cutting tools, the handaxes, cleavers, and picks, starting about 1.8 million years ago. During this period, species such as Homo habilis and Homo erectus/ergaster walked over southern Africa. The Middle Stone Age, starting about three hundred thousand years ago, seems to be directly associated with the emergence of a new species, Homo sapiens. This phase shows a wide cultural diversity in the region, and in fact across the whole African continent, both in time and space. This is a phase drastically marked by technological and cultural innovations, such as the use of bow and arrow, hafting, bone tools, lithic heat treatment, use of pigments, production of body ornaments such as beads, art in the form of engravings, and, finally, the systematic inclusion of shellfish and plants in the human diet. These innovations, however, were not used all in the same location. This congregation of techniques and innovations took place only during the next phase, the Later Stone Age, which started around thirty-five thousand years ago. It is likely the result of an important demographic change that occurred as a response to climatic oscillations that took place at the world level. Like the Middle Stone Age, the Later Stone Age saw an incredible range of cultural diversity in the large region of southern Africa. Traditionally, it was believed that the main differences between the Middle and Later Stone Ages were based on a dichotomy where, on one side, points and flake industries resulting from prepared cores such as Levallois were present, and on the other, simple cores producing microlithic assemblages, sometimes geometric, together with art, and beads and organic tools were present. Today, however, that simplistic contrast is known to be wrong, and the differences in cultural complexity are more a matter of concentration than innovation. The Later Stone Age hunter-gatherers were finally slowly replaced by farmers and herders and later by Iron Age populations, between twenty-five hundred years ago and the recent historical present.

The Middle Stone Age occupations of Tiémassas, coastal West Africa, between 62 and 25 thousand years ago