On the spatial and technological organisation of hafting modifications in the North African Middle Stone Age

Aterian stone tools represent one of the clearest indications of technological regionalisation in the North African Middle Stone Age. Found in association with Homo sapiens skeletal remains and more recently with symbolic material culture, the Aterian is widely thought to reflect modern human identity and cognition. As a lithic industry, the Aterian has been primarily defined by the presence of stemmed or tanged tools, but there has been little quantitative study of the relationship between tangs and other forms of hafting modifications, such as shouldering and basal thinning. Understanding the diversity of these features and their relationships with one another will clarify the organisation and adaptations of North African populations during Marine Isotope Stage 5 (MIS 5, ∼130–70,000 years ago), a critical timespan for modern human dispersal. This paper presents the results of a stepped analysis of fifteen Aterian and other non-Aterian assemblages from the same spatial and temporal bracket in North Africa. Using Correspondence Analyses together with a suite of other statistics, the results indicate that tanging represents a widely applied strategy of hafting a variety of different tools. On the other hand, basal thinning is specifically correlated with lightweight, highly retouched points. The distribution of these features appears to reflect geographical proximity and shared environments, rather than articulating with traditional named industries. This in turn suggests that a continued focus on tangs to differentiate an ‘Aterian’ from other, contemporary North African MSA industries may be obfuscating regional-scale patterns of technological diversity.     

From Aterian Notch to Aterian Tang: How to Make a Technological Invention

The Aterian lithic techno-complex that characterizes the late Middle Stone Age in North Africa is well known especially for its tanged or stemmed points. Recent techno-morphological and use-wear analyses have added new data to support the identification of the tang as the hafted portion of an artifact. They have also highlighted the presence of this attribute on tools other than projectile points, in contrast with the widespread idea that the tanged point is the Aterian fossile directeur. The design of this specific device, the tang, for hafting purposes is regarded as a great technical innovation that underlines a modern behavior. Our work provides new use-wear and experimental data, aiming at discussing the cognitive preconditions of this technical innovation that could have originated from a specific functional unit: the notch. Notches are quite abundant in the Aterian techno-complex. Our systematic study of this tool category from Aterian sites of the Jebel Gharbi allowed defining the notch per se as a techno-morpho-functional unit that was “applied” to different types of blanks, including “reused blanks,” which show a heavy patina on their surface. This functional unit has been used for various types of activities and can be found either alone on a blank or with multiple other units on the same blank, creating different tool morphologies. According to this interpretation, the tang could have been considered by Aterian populations as a new resulting variant of various possible combinations of notches, for defining and/or transforming the shape of a tool.     

What is the use of shaping a tang? Tool use and hafting of tanged tools in the Aterian of Northern Africa

We present the results of detailed microscopic examination of tanged tools from the site of Ifri n'Ammar. The rock shelter has a particularly rich and well-preserved stratigraphy that has yielded a large variety of tanged tools, thus offering a possibility to test hypotheses on the possible links between tangs and hafting. Earlier methodological work has demonstrated that patterned wear forms on the non-active part of the tool as the result of hafted tool use, and that the characteristics of the wear traces depend on the exact hafting arrangement used. In the present study, wear analyses were combined with further experiments that involved the hafting of tanged tools with various materials and arrangements and aimed at understanding the development of this important morphological innovation. We suggest that functional data are needed to understand the relevance of the "Aterian tang" for hafting (or use), and whether this innovation was triggered by functional, cultural or environmental factors.     

Three Scenarios Of The Middle To Upper Paleolithic Transition The Middle to Upper Paleolithic Transition in Africa and the Early Peopling of Eurasia by Anatomically Modern Humans

Previous papers of this cycle describe the Middle to Upper Paleolithic transition in Eurasia and in the Sino-Malayan zone. Archaeological evidence from Africa however, suggests a completely different model of the transition. Despite the variability of Paleolithic industries in Africa, the maintenance of the Middle Paleolithic strategy of core reduction constitutes a common trend. The transitional industries in North and East Africa are characterized by Aterian points and backed geometric implements.     

Integrating Human-Animal Relationships into New Data on Aterian Complexity: a Paradigm Shift for the North African Middle Stone Age

In the last decade, research conducted in North Africa, particularly in northwestern Africa, has shed light on the key role that the region has played in improving our understanding of human evolution. Specifically, (1) the increased number of direct dates obtained with new methods has pushed back the age of the Aterian (~ 150,000 to 40,000 BP); (2) analyses of Aterian lithic assemblages have placed them within the range of variation of the Middle Stone Age; (3) analyses of associated human remains suggest that the makers of the Aterian are within the range of variation common among early modern human and present affinities with contemporary remains from the Levant (Qafzeh, Skhul); (4) zones of settlement, such as those in the present-day Sahara and coastal areas, and even the composition and demography of populations could have been influenced by specific climatic changes of the Late Pleistocene; and (5) the presence of blocks of pigment showing use-wear facets on their surfaces, the presence of pigments on artifacts, as well as osseous industry and earliest ornaments suggest complex behaviors among these populations. In this renewed approach to the Aterian, data from faunal analyses provide information on human-carnivore competition and the subsistence practices of hunter-gatherer groups. Taphonomic and zooarchaeological analyses suggest that humans were not the only large predators occupying caves, and that the hunter-gatherers of the Middle Stone Age exploited a wide range of environments, consuming terrestrial and coastal resources alike. Interdisciplinary confrontations highlight the apparent complexity of socioeconomic organization and the strategies of high levels of mobility that characterized Aterian groups.     

Variability in bifacial technology at Elandsfontein,Western cape,South Africa: a geometric morphometric approach

This study applies a new three-dimensional measurement technique to determine the major source of variation in the Acheulian bifacial tool collection from the Middle Pleistocene site of Elandsfontein, South Africa. This three-dimensional technique is compared with conventional two-dimensional methods to investigate which methods capture morphological variation in the assemblage most comprehensively. Additionally, a set of experimentally produced bifacial tools are incorporated into the analyses to isolate the behavioral pattern underpinning identified variation in the archaeological assemblage. The interpretative breadth of current models explaining morphological variation in bifacial tools is then tested against the pattern identified in the Elandsfontein assemblage. Variation appears to be related to the consistent application of a specific reduction strategy associated with the early stages of bifacial tool manufacture. The intensity with which this strategy was applied seems to have been mediated by the availability of raw material that was suitable for the production of large bifacial tools.     

The Aterian from the Jebel Gharbi (Libya): New Technological Perspectives from North Africa

The purpose of this work is to examine the Aterian complex in the context of modern human origins through the analysis of the lithic industries from a geographically strategic area, the Jebel Gharbi (Libya). From a chronological point of view, the Aterian fits the time period of the Out of Africa 2 dispersal. During geoarchaeological surveys of the Jebel Gharbi carried out by the Italian–Libyan Archaeological Mission, 25 Aterian sites were found. The technology of the Aterian lithic industries from the Jebel Gharbi shows affinities both with the Aterian industries from Morocco and coeval industries from Egypt such as Taramsa. The affinities between contemporary Libyan Aterian industries, Egyptian industries, and some series from the Levant open new perspectives on the possible models of contact and displacement of human groups in a key period for the history of humankind.     

Identifying stone tools used in mining,smelting, and casting in Middle Bronze Age Cyprus

Abstract

Metallurgical production sites are often difficult to identify in the archaeological record because ore beneficiation and slag processing in the past involved the use of ground stone tools that were similar to those used in other contexts to prepare cereals and foods. Analysis of the ground stone assemblage from a Middle Bronze Age copper mining and production site at Ambelikou Aletri in Cyprus provided an opportunity to distinguish industrial and domestic ground stone tools and to identify the types of tools used in different stages of metal production. A comparison of tool morphologies, raw materials, and wear and breakage patterns from Ambelikou Aletri with those from contemporary domestic contexts, suggests that distinctions in the nature and structure of industrial and domestic tool kits do exist and those distinctions have an important role to play in identifying mining, smelting, and casting sites in the future.     

Some Insights on the Aterian in the Libyan Sahara: Chronology, Environment, and Archaeology

The Aterian has a huge geographic extension covering all North Africa, although it was not supposed to exist in the mountain ranges of the central Sahara. Its chronological context is not yet definitively determined and it is still difficult to say whether the Aterian tools are technological, typological, functional, or chronological markers. Recent surveys and excavations at Uan Tabu and Uan Afuda, two rock-shelters located in the central Tadrart Acacus, provide the first chronological, environmental and archaeological indications on this Late Pleistocene human occupation in the area. The lack of organic matter led us to perform OSL and TL analyses on sand. L'Atérien a une énorme extension géographique qui couvre tout le Nord de l'Afrique, tandis qu'on ne pensait pas qu'il existait dans les montagnes du Sahara central. Son contexte culturel n'est pas définitivement déterminé et il est encore difficile de dire si les instruments atériens sont des indicateurs téchnologiques, typologiques, fonctionels ou culturels. Reconnaissances et fouilles récentes à Uan Tabu et Uan Afuda, deux abris situés dans l'Acacous central, fournissent les premières indications sur la chronologie, l'environnement et l'archéologie de l'Atérien dans la région. L'absence de la substance organique, nous a porté à faire des déterminations OSL et TL sur les sables.     

山西吉县柿子滩遗址第九地点发掘简报

该地点出土的石器以锤击法打片、压剥法第二步加工和小型石片石器为主,刮削器、尖状器、砍砸器石器组合和细石叶压剥技术等代表了北方细石器文化的特征。出土的石磨盘、石磨棒、颜料块和研磨石等为研究旧石器时代晚期文化向新石器时代早期文化的过渡和华北地区原始农业的起源提供了资料。     

The origins of lithic projectile point technology: evidence from Africa,the Levant,and Europe

Projectile weaponry is a human cultural universal, but its origins and antiquity remain poorly understood. Stone- and bone-tipped projectile weapons have long been treated as emergent features of the "Upper Paleolithic" behavioral revolution. Recently it has been proposed that projectile technology was in widespread use among Homo sapiens populations in Africa during Middle Stone Age (MSA) times. One obstacle to researching the origins of projectile point technology is that the criteria archaeologists employ for recognizing plausible and implausible stone projectile points are largely subjective (overall tool shape, microwear traces). Tip cross-sectional area (TCSA) is a ballistically significant dimension that works well at discriminating North American stone projectile points (spearthrower dart tips and arrowheads) from spear points. This paper compares the TCSA values of ethnographic North American stone projectile points to hypothetical Middle and Upper Paleolithic stone projectile points from Africa, the Levant, and Europe. The results of this comparison do not support the hypothesis of widespread use of stone-tipped projectiles in Africa, the Levant, or Europe prior to 40 Ka. In the New World and in Australia, where we have the richest ethnographic record of stone projectile point use, these implements are largely employed in big-game hunting and in warfare. One or both of these factors may have played a role in the widespread adoption of stone projectile point technology after 40 Ka.     

The technology of Stone Age colonization: an empirical,regional-scale examination of Clovis unifacial stone tool reduction,allometry, and edge angle from the North American Lower Great Lakes region

There is now broad consensus that the appearance of Clovis in Northeastern North America (Great Lakes, New England) represents a colonization pulse into recently deglaciated landscapes. Due to the increased resource uncertainty that comes with colonizing unfamiliar landscapes, it was hypothesized that the majority tool component of Clovis assemblages, unifacial stone tools, should have been knapped on tool blanks possessing the design properties of longevity and functional flexibility to facilitate exploration mobility and guard against the absence of toolstone sources in the new landscape. These properties are optimized by large, flat flakes, possessing large surface area relative to flake thickness. Since discarded and, at times, exhausted unifacial stone tools do not preserve the original dimensions of the blank upon which they were created – necessary items for a true test of blank morphology selection – this study presents a set of predictions for inferring whether Clovis unifacial stone tool blanks were selected for the properties of longevity and functional flexibility based on evidence that Clovis people actually capitalized on those properties. Due to the nature of Clovis unifacial stone tools, tool size was of necessity used as a proxy for tool reduction, on the grounds that smaller tools are more likely to have been resharpened than larger tools, at least in the case of unifacial flake tools. The results showed that less resharpened tools possessed flatter, less spherical shapes than the more resharpened tools, which possessed more globular, spherical shapes, suggesting Clovis foragers exploited the retouch potential afforded by the larger, flatter blanks. Edge angles showed no relationship with tool reduction, suggesting that Clovis foragers exploited the functional flexibility afforded by flatter blanks by adjusting the edge angle to be either higher or lower as needed. These results are consistent with the notion that human colonizers, who did not know the abundance or location of stone outcrops prior to settling an unfamiliar territory, not only “geared up” before leaving a stone source, but geared up as efficiently as possible by carefully selecting the blanks they chose to carry. Broader implications for such careful unifacial stone tool blank selection are discussed.     

Recent Prehistoric Field Research in Central Tunisia: Prehistoric Occupations in the Meknassy Basin

Recent field prospection and test excavations in the Meknassy Basin (Central Tunisia) has revealed many prehistoric sites covering almost all the phases of North African prehistory from the Palaeolithic to the Neolithic. Excavations at the Aïn El-Guettar Mousterian site has yielded a faunal assemblage dominated by bovids and equids. One human tooth was found in situ. The stratigraphic sequence contains charcoal-rich occupation layers with faunal, human and lithic finds. A level with an industry resembling the Aterian was found beneath a Mousterian layer. The excavations at Aïn Oum Henda 2 (Jebel Maloussi) provided many Middle Palaeolithic lithic artefacts, some of which are pedunculates. From the excavations of the Rammadiya El Oghrab (Jebel Bou Hedma) we recovered some bones of antelope, many fragments of ostrich egg shell (among them a worked disc), an enormous quantity of flint (tools and splinters) and of land snails. In spite of the scarcity of land snails and the absence of bone in the rammadiya of Jebel Bou Hedma 1, the site produced a beautiful flint collection including an arrowhead found on the surface, which led us to place the site in the Neolithic.     

THE HENSBACKA: A SUBSISTENCE STRATEGY OF CONTINENTAL HUNTER-GATHERERS,OR AN ADAPTATION AT THE PLEISTOCENE-HOLOCENE BOUNDARY?

Summary. In this paper, three aspects of the Hensbacka/Fosna assemblage are discussed. Although significant features of the inventory have been touched upon, emphasis is placed on two issues: firstly, the environmental premise of the assemblage and, secondly, the origin(s) of the group(s) behind the assemblage. In this regard, it is suggested that the Hensbacka/Fosna assemblage is an 'expression' that reflects subsistence strategies of Continental hunter/gatherers at the close of the Late Glacial. In support of this proposition, a discussion has been initiated that addresses the diagnostic features of tanged points and the rationality of human behaviour.     

The Lower Paleolithic of the Arabian Peninsula: Occupations,Adaptations, and Dispersals

To understand major processes of human evolution during the Plio- Pleistocene, it is necessary to consider the available evidence from key regions of the Old World. The Arabian peninsula is often depicted as a key geographic route for hominin dispersals in Out of Africa models, although the available primary evidence is rarely cited. And yet, significant Lower Paleolithic assemblages have been identified in many parts of the peninsula, including in areas near the Strait of Bab al Mandab. The presence of Oldowan-like and Acheulean assemblages may reflect at least two major dispersals outside of Africa. Acheulean localities are particularly abundant on the Arabian peninsula, and variations in stone tool manufacturing techniques and tool-type frequencies may reflect temporal changes in assemblages. Although there is good potential to chronometrically date sites in the Arabian peninsula, absolute dating methods have not been adequately applied, most temporal reconstructions relying on typotechnological change. If the Arabian peninsula is to provide solid evidence for understanding hominin adaptation and dispersal patterns, future fieldwork in secure depositional contexts needs to be conducted to overcome current limits in dating and environmental reconstructions.     

The Chinese Upper Paleolithic: Geography, Chronology, and Techno-typology

This article reviews the archaeology and chronology of the Chinese Upper Paleolithic and the human fossils attributed to this period. The onset of the Upper Paleolithic in China dates to ca. 35,000–30,000 years ago and is marked by the appearance of a few body decorations and well-shaped bone tools that were added to stone tool assemblages, including core-and-flake tools in North China and cobble tools in South China. The proliferation of blade assemblages in northwest China is interpreted as the cultural impact or the physical presence of bearers of blade industries from western Eurasia. The ensuing appearance of microblade assemblages in North China by 23,000–22,000 years ago reflects the use of local siliceous crystalline nodules by a population that recognized the advantages of this raw material. At that time in South China, prehistoric artisans continued to shape their stone objects from the available flat river cobbles. During the later part of the Chinese Upper Paleolithic (ca. 21,000–10,000 BP), foragers also made bone tools, antler objects, pottery, and shell tools, which laid the technological foundations for the early Neolithic period. One difficulty in this research is that human fossils are rare. Few are well dated and morphological, cultural, and biological interpretations are hotly debated. Our review attempts to facilitate the understanding of a poorly known period in Chinese archaeology and its place in human cultural evolution.     

The Analysis of Stone Tool Procurement, Production, and Maintenance

Researchers who analyze stone tools and their production debris have made significant progress in understanding the relationship between stone tools and human organizational strategies. Stone tools are understood to be morphologically dynamic throughout their use-lives; the ever-changing morphology of stone tools is intimately associated with the needs of tool users. It also has become apparent to researchers that interpretations of lithic analysis are more productive when the unique contexts and situations for which lithic artifacts were made, used, modified, and ultimately discarded are considered. This article reviews the recent literature on stone tool production with an emphasis on raw material procurement, manufacturing techniques, and tool maintenance processes as they relate to adaptive strategies of toolmakers and users.     

A late Middle Stone Age artifact assemblage from Sibudu (KwaZulu-Natal): comparisons with the European Middle Paleolithic

It has been suggested that many behavioral innovations, said to appear during the late Middle Stone Age in sub-Saharan Africa, facilitated the expansion of anatomically modern humans from Africa and the Near East into Europe at about 50 kyr; the process eventually led to the replacement of Neanderthals by modern humans and the emergence of the Upper Paleolithic. However, assemblages in this time range are little known in South Africa. In fact, the transition from Middle to the Later Stone Age in Southern Africa is controversial. The early appearance in South Africa of many innovations, such as sophisticated knapping techniques (e.g. the use of soft hammer or indirect percussion in blade production, of composite tools, of microlithic and bladelet technologies) remains to be established through technological analysis.We present here the first results of a project designed to carry out detailed technological studies of several lithic assemblages in South Africa and France dated to the transition period. At this time we have completed the study of a post-Howiesons Poort assemblage from the rock shelter site of Sibudu.The >2 m deep stratigraphic sequence of Sibudu extends from Howiesons Poort at its base to final Middle Stone Age, directly under Iron Age layers. We have analyzed in detail layer RSP (ca. 53 kyr, 1 m above the Howiesons Poort levels) which has provided a large assemblage of several thousand stone artifacts. Compared to published MSA assemblages this industry is unusual for the very high proportions of retouched pieces (15%). The technology is not very elaborate and there is no strong standardization of the end-products. There are no flakes of predetermined shapes; retouch is used to modify irregular flakes to obtain desired edges. Knapping of flakes and blades is done by hard hammer; soft hammer is used only for retouching tools. Interestingly the older Howiesons Poort blades were produced on the same raw materials by soft hammer. Raw material (hornfels and dolerite) was procured from distances of less than 20 km. Unifacial points are the dominant type and there is strong evidence of hafting and use as spear armatures. Detailed comparisons with Middle Paleolithic assemblages of Western Europe show that the late Middle Stone Age technology in South Africa is very similar to that of the Middle Paleolithic; in fact we see no fundamental differences between the two entities, as far as lithic technology is concerned. Implications for the Out of Africa hypothesis are discussed.