Middle Stone Age Technology and Cultural Evolution at Magubike Rockshelter,Southern Tanzania

This paper contributes new information to the body of evidence for Middle Stone Age tool-use in Tanzania. Magubike rockshelter is located in an archaeologically unexplored region of the south-central part of the country, and thus fills a significant geographical gap between sites further to the north and those to the south in Zambia and Mozambique. Early analysis of a portion of the lithic materials demonstrates parallel changes in lithic reduction intensity, raw material preference and typology. This article explores possible explanations for this pattern, including the possibility that they reflect changes to local environment, and suggests avenues for future research.     

Palaeoenvironments and Cultural Sequence of the Florisbad Middle Stone Age Hominid Site, South Africa

Florisbad, an open-air spring site with 7 m of strata, has yielded the type assemblage of Middle Stone Age (MSA) fauna, the cranium of an archaic hominid in 1932 and an extensive sequence of MSA artefacts in the 1980s. The cultural assemblages include an early MSA dated broadly to 279,000±47,000 years, a highly retouched form of MSA at 157,000±21,000 years and a minimally retouched, expedient MSA assemblage from a series of occupation horizons at 121,000±6000 years. The latter represents multiple brief visits to a hunting and butchery site on the edge of an active spring pool, where periodic sedimentation gently buried occupation debris in a near-pristine context. Periods of lower spring discharge are represented by organic horizons as swampy vegetation encroached on the springs, while periods of higher spring discharge created pools. Overall the spring sequence indicates low-energy subaqueous environments similar to lakes, ponds or backwater sites. The sequence is characterized by fine sands, silts and clays responsible for the good archaeological preservation.     

The Middle Stone Age of West Turkana,Kenya

Abstract

Research on the origins of Homo sapiens and the development of our species’ unique behavior is focused on the Middle Stone Age (MSA) period in Africa (in comparison with the European Upper Palaeolithic). Although archaeological and paleontological fieldwork in the Turkana Basin in northwestern Kenya has contributed greatly to our understanding of human evolution in Africa, the Basin's MSA archaeological record remains poorly known. We report on a reconnaissance of MSA sites in West Turkana, Kenya, which included known archaeological/paleoanthropological localities at Eliye Springs and Kabua Waterhole (Kadokorinyang). A newly-discovered site, Nakechichok 1 (GdJh 5), preserves MSA tools stratified beneath Late Stone Age assemblages. The MSA lithic artifacts from Nakechichok 1 differ from those known from other MSA localities in nearby regions, and, they expand the known scope of MSA variability in the Turkana Basin, demonstrating that the MSA is not “missing” in this region, but just hard to find.     

A Comparison of Middle Stone Age and Later Stone Age Blades from South Africa

Abstract

The Middle Stone Age (MSA, ca. 250,000 to 25,000 B.P.) and the Later Stone Age (LSA, ca. 25,000 to 2000 B.P.) provide the cultural backdrops for the evolution of modern humans in Africa. The LSA has been long regarded as the period during which modern forms of behavior were widely adopted. Over the last decade evidence of modern behavior in the MSA has grown significantly, however, and some cultural distinctions between the MSA and LSA have become blurred. Perceived differences between MSA and LSA blade technologies warranted closer investigation. The South African site of Rose Cottage Cave (RCC) has a long cultural sequence incorporating several MSA and LSA industries. A controlled comparison of blades from the Howiesons Poort (ca. 65,000 to 55,000 B.P.) and Robberg (ca. 20,000 to 10,000 CAL B.P.) industries of RCC is presented. Robberg blade production appears to involve both a different theoretical approach and greater technical precision than Howiesons Poort production but it does not result in a greater level of dimensional standardization. Robberg blade technology could be described as more advanced, but its economic advantages are problematic. The skills involved may have been fostered within a particular social context, though it remains to be established whether these conditions were peculiar to the environmentally-stressed Robberg phase or to the broader LSA.     

Levallois Lithic Technology from the Kapthurin Formation,Kenya: Acheulian Origin and Middle Stone Age Diversity

The earliest fossils of Homo sapiens are reported from in Africa in association with both late Acheulian and Middle Stone Age (MSA) artifacts. The relation between the origin of our species during the later Middle Pleistocene in Africa and the major archaeological shift marked by the Acheulian-MSA transition is therefore a key issue in human evolution, but it has thus far suffered from a lack of detailed comparison. Here we initiate an exploration of differences and similarities among Middle Pleistocene lithic traditions through examination of Levallois flake production from a sequence of Acheulian and MSA sites from the Kapthurin Formation of Kenya dated to ∼200–500 ka. Results suggest that MSA Levallois technology developed from local Acheulian antecedents, and support a mosaic pattern of lithic technological change across the Acheulian-MSA transition.Les premiers restes fossiles d’Homo sapiens sont rapportés d’Afrique aussi bien à des avec des outillages de l’Acheuléen final que du Middle Stone Age (MSA). La relation entre l’origine de notre espèce au Pléistocène moyen final d’Afrique et le changement majeur marquée par la transition Acheuléen-MSA est par conséquent un moment clé de l’évolution humaine qui a manqué jusqu’ici d’analyses comparatives détaillées. Nous nous proposons ici de commencer à explorer les différences et les similarités qui peuvent se faire jour au Pléistocène moyen dans les traditions techniques à l’examen des productions à éclats Levallois, dans une séquence de sites acheuléens et MSA de la formation de Kapthurin (Kenya), datée de 200–500 ka. Les resultants obtenus suggèrent que la technologie Levallois MSA s’est développée sur ce substrat acheuléen et renforce cette perception que l’on peut avoir d’une mosa?que de changements technologiques jalonnant la transition Acheuléen-MSA.     

New ages for the post-Howiesons Poort,late and final Middle Stone Age at Sibudu,South Africa

Optically stimulated luminescence (OSL) measurements are reported for single grains of quartz from deposits within Sibudu rock shelter. Such measurements enable rejection of unrepresentative grains and application of the finite mixture and central age models to obtain the most reliable age estimates. Three types of single-grain equivalent dose (D_e) distributions were observed: one sample represented a single dose population, three samples indicated mixing between Iron Age (IA) and Middle Stone Age (MSA) deposits, and 10 samples (in addition to the three mixed samples) showed scattered distributions. The latter type resulted from differences in the beta dose received by individual grains. For these samples, the beta doses were modelled and adjusted accordingly. Ages for the 14 samples collected from MSA deposits post-dating the Howiesons Poort (HP) resulted in three age clusters, which are stratigraphically consistent with the three informally named cultural phases at Sibudu: namely, the post-HP, late MSA and final MSA. Weighted mean ages of 58.5 ± 1.4 ka, 47.7 ± 1.4 ka and 38.6 ± 1.9 ka were calculated for these phases, respectively. The three phases were separated by two occupational hiatuses with durations of 10.8 ± 1.3 ka and 9.1 ± 3.6 ka. We hypothesise that the punctuated presence of humans at Sibudu was determined by large-scale fluctuations in climate during oxygen isotope stage (OIS) 3, which resulted in alternating wet and dry periods. Phases of occupation correspond to wet periods when fresh water was available in the Tongati River, whereas intervals of site abandonment correspond to dry periods when people were forced to migrate in search of a reliable source of fresh water. Where people migrated to, remains unresolved.     

The Middle Stone Age south of the Limpopo River

Current interest in the origins of anatomically modernHomo sapiens has focused attention on early modern human remains and related archaeological materials associated with the southern African Middle Stone Age. While the anatomically modern status and a Last Interglacial or later age for the human fossils enjoy general support, issues related to the definition of the Middle Stone Age, its dating, and the interpretation of human behavior lack consensus. Available evidence suggests that the anatomically modern human skeleton appeared well before many aspects of the subsistence and symbolic behavior that characterize recent foragers and that Middle Stone Age technology persisted longer in southern Africa than its northern hemisphere counterpart.     

Zooarchaeology of the Middle Stone Age in Magubike Rockshelter,Iringa Region,Tanzania

African Archaeological Review - The analysis of the faunal remains from Middle Stone Age deposits of Magubike rockshelter was undertaken to contribute to the modern human behavior debate....     

Impact of Pollution at a Stone Age Rock Art Site in Oslo, Norway, Studied using Lead and Strontium Isotopes

Naturally occurring strontium and lead isotopes were used to study the impact of anthropogenic pollution on a c. 4500-year-old rock carving in Oslo, Norway. Strontium analyses have shown that road-salt from de-icing of a nearby road has accumulated in the soil surrounding the carving. Upon rainfall this salt is redissolved and drains over the rock carving. Analyses of the lead isotopic system have confirmed the impact of traffic from the nearby road on the rock carving site, but also indicate other sources of lead in the Oslo area and pollution in general. The rock carvings at Ekeberg are at high risk as, apart from natural weathering, they are exposed to the deposition of road salt, emissions from nearby traffic, local and long distance atmospheric pollution and meteorological inversion effects during the winter.     

Rock Hyraxes (Procavia capensis) from Middle Stone Age Levels at Blombos Cave,South Africa

The ～100 ka Middle Stone Age levels at Blombos Cave, southern Cape, South Africa, contain numerous rock hyrax (Procavia capensis) remains. It is often ambiguous to interpret rock hyrax remains from archaeological deposits deriving from cave and shelter sites in southern Africa as the agent or agents of accumulation may be difficult to establish. In this paper, the different taphonomic signatures separating anthropogenic from natural accumulations at Blombos Cave are considered. The analysis indicates that although a few specimens show evidence for raptor and carnivore accumulation, there is also substantial evidence that suggests humans preyed on these small mammals during different times of the year.     

A Middle Stone Age occupation site at Porc Epic Cave,Dire Dawa (east-central Ethiopia)

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.

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Résumé Cet article décrit les résultats des fouilles de 1974 à la grotte du Porc Epic, à Dire Dawa. Suivant un résumé de l'interprétation de la succession stratigraphique compilé par M. A. J. Williams et l'histoire géologique de la grotte et de ses dépôts, la séquence culturelle est décrite et un modèle explicatif est présenté. La fouille de 1974 a révélé que les couches du Middle Stone Age ont été scellées sous une épaisse couche de concrétion calcaire, sauf dans la partie avant de la caverne où l'érosion et une déposition ultérieure ont produit le mélange apparent des outillages du Middle et du Later Stone Age observé par les fouilleurs en 1933. Les industries sont associés à des fragments d'os souvent brûlés, autour de ce qui semble être des foyers. Les outils consistent surtout de pointes, de grattoirs et de formes de lames et d'éclats à bords endommagés. La nature spécialisée des outils retouchés et utilisés, ainsi que l'inaccessibilité relative de la grotte et l'aspect fragmenté des restes osseux, suggèrent l'usage possible de la grotte comme camp de chasse durant les saisons de migration du gibier vers l'escarpement des plaines des Afars. Les déplacements des occupants sur un vaste terrain sont attestés par la présence d'outils en obsidienne et en basalte, deux matériaux qui ne sont pas trouvés dans les environs immédiats du site. En se fondant sur un fragment de mâchoire humaine découvert en 1933, les occupants de la grotte au Middle Stone Age semblent démontrer des traits néanderthaliens et non-néanderthaliens. Les dates obtenues par la méthode d'hydratation des pièces en obsidienne provenant du dépôt du Middle Stone Age indiquent que la grotte fut occupée entre environ 61,000 et 77,500 bp. Ces résultats confirment que les activités dans la grotte du Porc Epic sont d'un âge comparable à celles des localités du Middle Stone Age trouvées ailleurs dans le continent.

     

The Early Middle Pleistocene Site of Gombore II (Melka Kunture,Upper Awash,Ethiopia) and the Issue of Acheulean Bifacial Shaping Strategies

The Gombore II site dates to circa the Brunhes Matuyama Reversal and is one of the Acheulean localities of the Melka Kunture (Upper Awash, Ethiopia) archaeological complex, known since the 1970s. In 2001, this locality was selected as the site for an Open Air Museum and thus excavated. The excavation area has yielded an abundant Acheulean lithic assemblage manufactured on volcanic raw materials in close association with numerous paleontological remains. A technological analysis was carried out on a fraction of the bifacial tools (bifaces and cleavers) which could be temporarily removed from the displayed surface in the museum. This set of artefacts reveals new data about the bifacial shaping strategies adopted at the beginning of the Middle Pleistocene in Ethiopia. The use of obsidian and the systematic manufacturing of twisted bifaces are original features of the assemblage. These data are discussed in the framework of penecontemporaneous East African sites.     

Site Reconnaissance in the Kipsing and Tol River Watersheds of Central Kenya: Implications for Middle and Later Stone Age Land-Use Patterns

Two seasons of archaeological site reconnaissance and geo-archaeological fieldwork in the Kipsing and Tol river valleys of central Kenya have resulted in (1) the location of 58 surface sites and 13 spot finds and (2) the excavation and dating of 11 alluvial stratigraphic profiles. These data are incorporated with our previous work in the study area to yield a preliminary interpretation of Middle and Later Stone Age tool technologies and land-use strategies during the Late Pleistocene period there. Specifically, the nature of the lithic inventories and observed distribution of archaeological sites suggests that people in the Middle Stone Age employed a patch choice resource and land-use strategy while those in the subsequent Later Stone Age period utilized a logistical strategy.Pendant deux saisons de la reconnaissance archéologique d'emplacement et des travaux sur le terrain geo-archéologiques les vallées dans de Kipsing et de Tol fleuve du Kenya central ont eu comme conséquence (1) l'endroit de 58 emplacements extérieurs et 13 trouvailles de tache et (2) l'excavation et dater 11 profils stratigraphiques alluviaux. Ces données sont incorporées avec nos travaux précédents dans le secteur d'étude pour rapporter une interprétation préliminaire de milieu et de stratégies postérieures d'utilisation de la terre de technologies d'outil de âge de pierre pendant la période pléistocène en retard là. Spécifiquement, la nature des inventaire lithic et la distribution observée des emplacements archéologiques suggère que les gens dans le âge de pierre moyen aient utilisé un choix de morceau (patch choice) stratégie de ressource et d'utilisation du territoire, alors que ceux dans la période postérieure suivante de âge de pierre utilisaient un logistique stratégie.     

The Middle Stone Age of East Africa and the beginnings of regional identity

The history of research into the Middle Stone Age of East Africa and the present state of knowledge of this time period is examined for the region as a whole, with special reference to paleoenvironments. The known MSA sites and occurrences are discussed region by region and attempts are made to fit them into a more precise chronological framework and to assess their cultural affinities. The conclusion is reached that the Middle Stone Age lasted for some 150,000 years but considerably more systematic and in-depth research is needed into this time period, which is now perceived as of great significance since it appears to span the time of the evolution of anatomically Modern humans in the continent, perhaps in East Africa.     

Possible shell beads from the Middle Stone Age layers of Sibudu Cave,South Africa

Recent excavations at Sibudu Cave, KwaZulu-Natal, South Africa, uncovered an Iron Age horizon below which is a complex 3 m thick Middle Stone Age sequence with post-Howiesons Poort, Howiesons Poort, Still Bay and pre-Still Bay layers. Available OSL ages indicate that the Howiesons Poort occupation is older than 60 ky and the Still Bay older than 70 ky. Here we present the archaeological context and the taphonomic analysis of six Afrolittorina africana, three of which bear perforations, from the Still Bay and Howiesons Poort layers of this site. The single specimen from the latter cultural horizon comes from the lowermost layer attributed to this technocomplex. This and the depositional context of this layer suggest that this shell derives, as do the other five, from the Still Bay occupation layers. Taphonomic analysis of the archaeological specimens based on present day Afrolittorina africana biocoenoses, microscopic examination, morphometry, experimental perforation of modern shells, and a review of the natural agents that may accumulate marine shells at inland sites, indicate probable human involvement in the collection, transport, modification, and abandonment of Afrolittorina africana in Sibudu. If confirmed by future discoveries these shells would corroborate the use of personal ornaments, already attested at Blombos Cave, Western Cape Province, by Still Bay populations. The apparent absence of ornaments at Howiesons Poort sites raises the question of the mechanisms that have led to cultural modernity since it seems to contradict the scenario according to which cultural innovations recorded at Middle Stone Age sites reflect a process of continuous accretion and elaboration interpreted as the behavioural corollary of the emergence of anatomically modern humans.     

Middle Stone Age bone tools from the Howiesons Poort layers,Sibudu Cave,South Africa

Recently discovered bone implements from Middle Stone Age (MSA) deposits at Sibudu Cave, South Africa, confirm the existence of a bone tool industry for the Howiesons Poort (HP) technocomplex. Previously, an isolated bone point from Klasies River provided inconclusive evidence. This paper describes three bone tools: two points and the end of a polished spatula-shaped piece, from unequivocal HP layers at Sibudu Cave (with ages greater than ∼61 ka). Comparative microscopic and morphometric analysis of the Sibudu specimens together with bone tools from southern African Middle and Later Stone Age (LSA) deposits, an Iron Age occupation, nineteenth century Bushman hunter-gatherer toolkits, and bone tools used experimentally in a variety of tasks, reveals that the Sibudu polished piece has use-wear reminiscent of that on bones experimentally used to work animal hides. A slender point is consistent with a pin or needle-like implement, while a larger point, reminiscent of the single specimen from Peers Cave, parallels large un-poisoned bone arrow points from LSA, Iron Age and historical Bushman sites. Additional support for the Sibudu point having served as an arrow tip comes from backed lithics in the HP compatible with this use, and the recovery of older, larger bone and lithic points from Blombos Cave, interpreted as spear heads. If the bone point from the HP layers at Sibudu Cave is substantiated by future discoveries, this will push back the origin of bow and bone arrow technology by at least 20,000 years, and corroborate arguments in favour of the hypothesis that crucial technological innovations took place during the MSA in Africa.     

Edge damage distribution at the assemblage level on Middle Stone Age lithics: an image-based GIS approach

Lithic artifacts represent the most abundant cultural remains from Middle Stone Age sites in southern Africa. Of these, pointed forms (under a variety of names), blades, and flakes have long been recognized as the three most abundant general types, and retouch on all three is rare relative to similar forms of equivalent age elsewhere. Here we offer a new technique for documenting concentrations of edge damage on an assemblage level to infer taphonomic processes and to record usewear and retouch. This approach is specifically aimed at patterning on the assemblage scale, rather than on individual artifacts. We use points from a Middle Stone Age assemblage from Pinnacle Point Cave 13B, near Mossel Bay, South Africa, to illustrate the technique. Combining GIS, rose diagrams, and polar statistics, we were able to visually and statistically summarize lithic artifacts for patterns of edge damage. For the points made on quartzite in this assemblage, edge damage was found to be significantly patterned and taphonomic causes of the damage were rejected. The technique also opens avenues for many other quantitative analyses that are either impossible or difficult with current non-visual systems of recording, such as measurements of distance, angle, and area of edge damage.     

Bedding, hearths, and site maintenance in the Middle Stone Age of Sibudu Cave, KwaZulu-Natal, South Africa

Micromorphological analysis of sediments from the Middle Stone Age site of Sibudu Cave, KwaZulu-Natal, South Africa, provides a high-resolution sequence and evidence of site formation processes of predominantly anthropogenic deposits. This methodology allows for a detailed interpretation of individual anthropogenic activities, including the construction of hearths and bedding and the maintenance of occupational surfaces through the sweep out of hearths and the repeated burning of bedding. This analysis also provides a context for evaluating other studies at the site relating to magnetic susceptibility, paleobotany, paleozoology, anthracology, and studies of ochre.     

The Role of Different Raw Materials in Lithic Technology and Settlement Patterns During the Middle Stone Age of Southern Africa

African Archaeological Review - The study of raw materials is an essential step in lithic analysis, regardless of the age, provenance, and technology of the assemblages. As in many other contexts...     

Engraved ochre from a Middle Stone Age context at Klein Kliphuis in the Western Cape of South Africa

This paper reports on a piece of engraved ochre recovered from a Middle Stone Age context at the rock shelter site of Klein Kliphuis (Western Cape, South Africa). The ochre was associated with a mixed assemblage of Howiesons Poort and post-Howiesons Poort MSA artefacts, suggesting that it is substantially younger than similar finds at Blombos Cave. The implications of the find for arguments concerning the nature of Late Pleistocene behavioural evolution are discussed.