Paleolithic Stone Tools Research Articles

The fragmented character of Middle Palaeolithic stone tool technology

The importance of the transport of stone artefacts in structuring Neandertal lithic assemblages has often been addressed, but the degree to which this led to fragmentation of lithic reduction over Middle Palaeolithic landscapes has not been explicitly studied thus far. Large-scale excavations of Middle Palaeolithic open-air sites and refitting studies of the retrieved assemblages have yielded new, high-resolution data on the mobile aspects of Neandertal stone tool technology. In this paper, we integrate lithic technology and raw material data from recent studies of Middle Palaeolithic open-air and rock shelter sites in Western Europe. We demonstrate that the results of a variety of typological, technological (especially refitting), and lithological studies have important consequences for our knowledge of the acquisition of raw materials and subsequent production, usage and discard of stone artefacts in the Middle Palaeolithic. Neandertal production and use of stone tools was fragmented in three domains: the spatial, the temporal and the social domain. We show that this versatile segmentation of stone artefact handling strategies is a main determinant of the character of the Neandertal archaeological record. Our data testify to ubiquitous and continuous transport of stone artefacts of a wide variety of forms, picked by Neandertals using selection criteria that were sometimes far removed from what archaeologists have traditionally considered, and to some degree still consider, to be desired end products of knapping activities. The data presented here testify to the variability and versatility of Middle Palaeolithic stone tool technology, whose fragmented character created very heterogeneous archaeological assemblages, usually the product of a wide variety of independent import, use, discard and/or subsequent transport events.

Chagyrskaya Cave:A Middle Paleolithic Site In The Altai

This article presents the results of multidisciplinary studies conducted at Chagyrskaya – an Upper Pleistocene karst cave in the northwestern Altai where Middle Paleolithic stone tools and fossil remains of Neanderthals were found. Taphonomic aspects of the site are addressed, and results of science-based analyses including radiocarbon and paleomagnetic dating are presented. The deposits are similar to loess-like Upper Pleistocene loams of Western Siberia. Among the Middle Paleolithic industries of the Altai, the Chagyrskaya industry is paralleled only by that of Okladnikov (formerly Sibiryachikha) Cave. Both represent a local Middle Paleolithic Mousteroid facies, named Sibiryachikha after the eponymous site.

The Early to Late Paleolithic Transition in Korea: A Closer Look

In Korean Paleolithic archaeology, it is traditionally thought that the Late Paleolithic stone tool industries were in some way derived from the Shuidonggou site in northern China. The latter site has long been considered to be the type site of the eastern Asian Late Paleolithic blade technology. However, recent studies suggest that a number of Korean Late Paleolithic sites probably predate Shuidonggou, some by several thousands of years. Here, we present a series of accelerator mass spectrometry (AMS) dates recently analyzed by the AMS laboratory at Seoul National University and discuss further the possibility that the introduction of blade (and later microblade) technologies into Korea may have originated directly from Mongolia, Siberia, and possibly other areas of northeast China, rather than from Shuidonggou.

Spatial distribution of Paleolithic sites in Bose Basin, Guangxi, China

The Paleolithic stone tool industry from the Bose Basin (Guangxi, China) is best known for the presence of Acheulean-like bifacially and unifacially-worked handaxes found in the same horizon with tektites dated to 803,000 BP. One point that is often not included in discussion of the Bose lithics is the variability in the distribution of sites and artifacts across the basin. This paper reports the results of an analysis of the spatial distribution of the lithics and sites in the Bose Basin based on a multidisciplinary approach utilizing geomorphological observations, Geographic Information Systems, remote sensing, and computer graphics. Analyses include data collected during a comprehensive systematic archaeological field survey conducted in the basin between 2009 and 2010. The results indicate that the density of sites and stone artifacts per site decrease when moving from the northwest to the southeast. Perhaps the most interesting finding is that the handaxes are concentrated in only certain areas of the basin, a pattern similar to the typical western Old World Acheulean, rather than the Oldowan, where the artifact types appear to be more evenly distributed.

Les Néandertaliens d’El Sidrón (Asturies, Espagne). Actualisation d’un nouvel échantillon

This paper synthesizes and updates the information coming from the El Sidrón (Asturias, Northern Spain) neandertal site. Since 2000, a new sample of Homo neanderthalensis dated to at least 49,000years old is being systematically recovered at the El Sidrón cave site. The bone assemblage is located in a secondary position, and certainly derives from a close location. The sample is almost exclusively composed of human remains. There is a moderate number of Middle Paleolithic stone tools (n≈415) and very few macro-faunal remains. All skeletal parts are preserved, including some rare bones such as the hyoid bone. Teeth are abundant (n=213), cranial and postcranial remains are also well represented, but fragmentary, with a special presence of foot and hand bones. A minimum number of thirteen individuals has been identified, comprising different developmental stages from infancy to adulthood: one infant, two juveniles, three adolescents, and seven adults. Paleobiology of the El Sidrón humans fits the pattern found in other neandertal samples: a high incidence of dental hypoplasia and interproximal grooves, yet no serious traumatic lesions are present. Moreover, unambiguous evidence of human-induced modifications (cannibalism) was found on the human remains: cut marks, percussion pitting, conchoidal scars and adhering flakes. Individuals seem to have been treated differentially. Morphologically, the El Sidrón humans show a large number of neandertal lineage-derived features even though certain traits place the sample at the limits of neandertal variation. Integrating the El Sidrón human mandibles and occipital bones into the larger neandertal sample reveals a possible geographic patterning, with southern Neandertals showing broader faces with increased lower facial heights. Ancient DNA analyses have been carried out, developing an anti-contamination protocol of excavation for minimizing the risk of modern human DNA contamination. As a result both mitochondrial and nuclear DNA have been extracted from dental and osteological remains. Curiously, mtDNA comparative analyses suggest a population affinity of Iberian Peninsula Neandertals with Central European Neandertals. Nuclear DNA analyses have permitted the identification of some functional genes such as the melanocortin 1 receptor (MC1R), which regulates hair and skin pigmentation; the FOXP2, a gene involved in the development of language; and the gene involved in the ABO blood group system. Nowadays the large El Sidrón sample is the most significant neandertal sample from the Iberian Peninsula, and augments the European evolutionary lineage fossil record, supporting ecogeographical variability across neandertal populations.

“Most beautiful and most wonderful”: Those endless stone tool forms

In recent years, an increasing range of scientists from the fields of psychology, anthropology and archaeology are recognising the value of utilising Darwinian theory to study cultural transmission and evolution. Such an approach is based on recognition that culture involves a mode of inheritance (social transmission), variation of practice, and the differential representation of particular variants in subsequent generations due to a variety of sorting mechanisms. In other words, culture evolves via a process of “descent with modification”. Two immediate analytical implications arise from this. The first of these is that ‘population thinking’ must be applied to the study of cultural evolution; the second is that understanding the historical process of lineage decent and diversification (i.e. phylogeny) becomes an imperative research goal. Methodologies and principles designed to address these issues in biology can profitably be used to address such questions in cultural data. Here, case studies of Palaeolithic stone tools are used to demonstrate how these principles and methodological approaches may be applied to some of these early artefactual products of the human lineage. Such methods are shedding new light on this “most beautiful and most wonderful” of legacies left to us by our fossil relatives and ancestors.

Stone toolmaking and the evolution of human culture and cognition

Although many species display behavioural traditions, human culture is unique in the complexity of its technological, symbolic and social contents. Is this extraordinary complexity a product of cognitive evolution, cultural evolution or some interaction of the two? Answering this question will require a much better understanding of patterns of increasing cultural diversity, complexity and rates of change in human evolution. Palaeolithic stone tools provide a relatively abundant and continuous record of such change, but a systematic method for describing the complexity and diversity of these early technologies has yet to be developed. Here, an initial attempt at such a system is presented. Results suggest that rates of Palaeolithic culture change may have been underestimated and that there is a direct relationship between increasing technological complexity and diversity. Cognitive evolution and the greater latitude for cultural variation afforded by increasingly complex technologies may play complementary roles in explaining this pattern.

Technology, expertise and social cognition in human evolution

Paleolithic stone tools provide concrete evidence of major developments in human behavioural and cognitive evolution. Of particular interest are evolving cognitive mechanisms implied by the cultural transmission of increasingly complex prehistoric technologies, hypothetically including motor resonance, causal reasoning and mentalizing. To test the relevance of these mechanisms to specific Paleolithic technologies, we conducted a functional magnetic resonance imaging study of Naïve, Trained and Expert subjects observing two toolmaking methods of differing complexity and antiquity: the simple 'Oldowan' method documented by the earliest tools 2.5 million years ago; and the more complex 'Acheulean' method used to produce refined tools 0.5 million years ago. Subjects observed 20-s video clips of an expert demonstrator, followed by behavioural tasks designed to maintain attention. Results show that observational understanding of Acheulean toolmaking involves increased demands for the recognition of abstract technological intentions. Across subject groups, Acheulean compared with Oldowan toolmaking was associated with activation of left anterior intraparietal and inferior frontal sulci, indicating the relevance of resonance mechanisms. Between groups, Naïve subjects relied on bottom-up kinematic simulation in the premotor cortex to reconstruct unfamiliar intentions, and Experts employed a combination of familiarity-based sensorimotor matching in the posterior parietal cortex and top-down mentalizing involving the medial prefrontal cortex. While no specific differences between toolmaking technologies were found for Trained subjects, both produced frontal activation relative to Control, suggesting focused engagement with toolmaking stimuli. These findings support motor resonance hypotheses for the evolutionary origins of human social cognition and cumulative culture, directly linking these hypotheses with archaeologically observable behaviours in prehistory.

Stone tool analysis and human origins research: Some advice from uncle Screwtape

The production of purposefully fractured stone tools with functional, sharp cutting edges is a uniquely derived hominin adaptation. In the long history of life on earth, only hominins have adopted this remarkably expedient and broadly effective technological strategy. In the paleontological record, flaked stone tools are irrefutable proof that hominins were present at a particular place and time. Flaked stone tools are found in contexts ranging from the Arctic to equatorial rainforests and on every continent except Antarctica. Paleolithic stone tools show complex patterns of variability, suggesting that they have been subject to the variable selective pressures that have shaped so many other aspects of hominin behavior and morphology. There is every reason to expect that insights gained from studying stone tools should provide vital and important information about the course of human evolution. And yet, one senses that archeological analyses of Paleolithic stone tools are not making as much of a contribution as they could to the major issues in human origins research.

The time revolution of 1859 and the stratification of the primeval mind

Archaeologists regard the demonstration of human antiquity in 1859 as a major breakthrough in the development of prehistoric studies. However, the significance of this event, although acknowledged by other disciplines, is largely passed over. We investigate why this is so by examining the procedures that the antiquary John Evans and the geologist Joseph Prestwich used to make their argument. We present previously unreported documents from the Royal Society's Library that show how they built their case for a prehistory without history. Instead it fell to two other antiquaries-archaeologists, John Lubbock and General Augustus Lane-Fox, to flesh out the discovery of deep time. Lubbock supplied a contemporary human face for the makers of Palaeolithic stone tools in the form of Tasmanian aborigines, and Lane-Fox, through his artefact-based ‘philosophy of progress’, presented a model of a stratified mind that contained primeval elements. These events, which took place between 1859 and 1875, set the pattern for research into human origins for the next century.

The Evolution of human populations in Arabia: paleoenvironments, prehistory and genetics

1. Tracking the Origin and Evolution of Human Populations in Arabia, Jeffrey I. Rose and Michael D. Petraglia Part I. Quaternary Environments and Demographic Response 2. The Red Sea, Coastal Landscapes, and Hominin dispersals, Geoff Bailey 3. Pleistocene Climate Change in Arabia: Developing a Framework for Hominin Dispersal over the Last 350 ka, Adrian G. Parker 4. Environment and Long-term Population Trends in Southwest Arabia, Tony J. Wilkinson Part II. Genetics and Migration 5. Mitochondrial DNA Structure of Yemeni Population: Regional Differences and the Implications for Different Migratory Contributions, Jakub Ridl, Christopher M. Edens, Viktor Cerny 6. The Arabian Peninsula: Gate for Human Migrations Out of Africa or Cul-de-sac? A Mitochondrial DNA Phylogeographic Perspective, Vicente M. Cabrera, Khaled K. Abu-Amero, Jose M. Larruga, and Ana M. Gonzalez 7. Bayesian coalescent inference from mitochondrial DNA variation of the colonization time of Arabia by the hamadryas baboon (Papio hamadryas hamadryas), Carlos A. Fernandes Part III. Pleistocene Archaeology 8. Acheulean Landscapes and Large Cutting Tool Assemblages in the Arabian Peninsula, Michael D. Petraglia, Nick Drake and Abdullah Alsharekh 9. A Middle Paleolithic Assemblage from Jebel Barakah, Coastal Abu Dhabi Emirate, Ghanim Wahida, Walid Yasin Al-Tikriti, Mark J. Beech, and Ali Al Meqbali 10. Paleolithic stone tool assemblages from Sharjah and Ras al Khaimah in the United Arab Emirates, Julie Scott-Jackson, William Scott-Jackson, and Jeffrey I. Rose 11. The Central Oman Palaeolithic Survey: Recent research in Southern Arabia and reflection on the prehistoric evidence, Reto Jagher 12. The Middle Paleolithic of Arabia: The View from the Hadramawt Region, Yemen, Remy Crassard 13. The 'Upper Paleolithic' of South Arabia,Jeffrey I. Rose and Vitaly I. Usik 14. The Late Pleistocene of Arabia in Relation to the Levant, Lisa A. Maher Part IV. The Early Holocene 15. The Holocene (Re-)Occupation of Eastern Arabia, Hans-Peter Uerpmann, Daniel T. Potts, and Margarethe Uerpmann 16. Early Holocene in the highlands: data on the peopling of the eastern Yemen Plateau, with a note on the Pleistocene evidence, Francesco G. Fedele 17. Southern Arabia's Early Pastoral Population History: Some Recent Evidence, Joy McCorriston and Louise Martin 18. Archaeological, Linguistic and Historical Sources on Ancient Seafaring: A Multidisciplinary Approach to the Study of Early Maritime Contact and Exchange in the Arabian Peninsula, Nicole Boivin, Roger Blench, and Dorian Q. Fuller 19. Holocene Obsidian Exchange in the Red Sea Region, Lamya Khalidi Part V. Synthesis and Discussion 20. The Paleolithic of Arabia in an Inter-Regional Context, Anthony E. Marks

Quartz OSL dating of archaeological sites in Xiao Qaidam Lake of the NE Qinghai–Tibetan Plateau and its implications for palaeoenvironmental changes

In the past decades, archaeologists have found evidences for prehistorical human activity in the Qinghai–Tibetan Plateau (QTP). In 1982, some Paleolithic stone tools were found in a section from a terrace of the Xiao Qaidam Lake in the Qaidam Basin, NE of the QTP. The age of this Paleolithic site has remained unknown by far. Some believed that the age of human inhabitation in this Paleolithic site was about 30 ka. In this study, quartz optically stimulated luminescence was used to date 10 samples collected from four sections in the Xiao Qaidam Lake, using the single-aliquot regeneration-dose protocol. The two samples from section XCDH2, which is from a lake terrace about ∼7–8 m above the present lake level and in which the top gravel layer contains stone tools, were not well-bleached before deposition. Their ages (>101 and >159 ka) determined by SAR should be considered minimums. OSL dating results of six samples from two sections (XCDH1 and XCDH3) of an adjacent lake terrace, which is ∼12 m above the present lake level, suggest two possibilities for the age of the tool-bearing gravel layer: (1) younger than ∼3 ka if the lake terrace of XCDH2 is younger than the terrace represented by XCDH1 and XCDH3; or (2) between ∼3 and 11 ka if these two terraces are part of the deposit of the same time period. In either case, the age of the archaeological layer should be much younger than the previously proposed ∼30 ka. As the climate in the early Holocene after 11 ka was increasingly warm and the Xiao Qaidam Lake area could be suitable for human inhabitation then, we deduce that the age range of ∼3–11 ka is more likely the time frame for this archaeological site. The age of 3.1 ± 0.3 ka for the surface of terrace XCDH1/XCDH3 suggests a significant lake level decrease after this time and a corresponding arid event at ∼3 ka; the lake level did not reach this level again after that time. Section XCDH4 is more than 40 m above the present lake level, and two samples gave ages of 37 ± 4 and 51 ± 4 ka. These two dates and the dates from the other sections demonstrate that two lake levels higher than present existed for Xiao Qaidam Lake, one at ∼12 m and dated ∼3–11 ka and the another at >40 m and dated ∼37–51 ka.

Modes de sélection et contraintes en Europe centrale prénéanderthalienne

The Microlithic industries of lower Palaeolithic central Europe have been speculated to be a result of raw material availability and therefore natural constraints. However, on some sites such as Bilzingsleben and Vertesszőllős, raw material constraints do not apply. Clearly here has been a positive selection for small-scale tools that must have different explanations. The seemingly stable pattern of forms unrelated to raw material properties, leads to the inference that early hominin societies possessed and transmitted over generations, a defined set of behavioural norms. The paper argues that patterns of choice can be isolated within lower Palaeolithic stone tool assemblages that are distinct from patterns of ecological restraint.

Microhardness analysis and characterization of Palaeolithic stone tool materials for understanding primary material selections and utilizations

For a comprehensive understanding of material selection and utilization at the beginning of human history, the mechanical properties, surface morphologies, surface roughness, and internal microstructures of lithic raw materials used in the Upper Paleolithic age are analyzed. A case study reveals that certain materials with hardness greater than approximately 6.0 GPa with even surfaces, which were composed of extremely fine crystal grains with diameters from approximately 0.1 to 0.5 µm, were elaborately selected for fabricating sharp-edged blades. Additionally, material influence on the progress of the manufacture of tools was observed: materials with high hardness and strength tended to halt the manufacture process in the initial stages, whereas materials with low hardness and strength tended to facilitate the fabrication process to the final stages. These results demonstrate that detailed analyses of the intrinsic properties of actual prehistoric materials could provide useful and significant information for understanding material-related activities in prehistoric ages.

Hammer or crescent wrench? Stone-tool form and function in the Aurignacian of southwest Germany

The early Upper Paleolithic of Europe is associated with the appearance of blade/bladelet technology (e.g., Aurignacian). These industries include a wider range of formal tool types than seen in the Middle Paleolithic. Greater diversity in tool types is often interpreted as specialized tools created for specific tasks. This, in turn, is said to reflect dramatic behavioral shifts between Neandertals and modern humans. In order to test previous interpretations, it is necessary to have a detailed understanding of early Upper Paleolithic stone-tool function. Toward this end, analyses of microscopic residue and use-wear were undertaken on 109 stone tools from three Aurignacian sites in southwest Germany (Hohle Fels, Geißenklösterle, and Vogelherd). These cave sites evidenced remarkable residue preservation, with approximately 82% of the sample showing some form of functional evidence. Residues observed included hair, feathers, bone/antler, wood, plant tissue, phytoliths, starch grains, and resin. The results suggest that tool typology is not strongly linked to the processing of specific materials. For example, endscrapers from the sample show evidence of processing wood, charred wood, plants, starchy plants, birds, bone/antler, and animals (hair). Hairs are found on tools typologically classified as blades, flakes, borers, pointed blades, and combination tools (nosed endscraper-borer, burin-laterally-retouched blade). In the early Upper Paleolithic of southwest Germany, a wide range of tool types appears to have been used to process a diverse array of materials. These results suggest that the interpretation of behavioral patterns from stone tools must consider more than tool typology.

Child's play: Reflections on the invisibility of children in the paleolithic record

Were there children in Early Paleolithic times? At first glance, this seems a stupid question. We are obviously descended from Paleolithic ancestors. Yet, in archeological models of Paleolithic stone tool variability and assemblage formation processes, children might as well be invisible. There have been some efforts to identify byproducts of children's activities in a few Late Paleolithic contexts, but their possible role in broader patterns of Paleolithic industrial variability remains largely unexplored.1 In this paper I argue that the reason we know so little about children's knapping behavior in prehistory is not that this behavior was genuinely absent, but rather that we have not looked hard enough or in the right way at the lithic record. This is a pity, because of all the behaviors we archeologists attempt to reconstruct in our research, child-rearing must certainly number among those with the most immediate and important evolutionary consequences.

Paleobiology and comparative morphology of a late Neandertal sample from El Sidron, Asturias, Spain.

Fossil evidence from the Iberian Peninsula is essential for understanding Neandertal evolution and history. Since 2000, a new sample approximately 43,000 years old has been systematically recovered at the El Sidrón cave site (Asturias, Spain). Human remains almost exclusively compose the bone assemblage. All of the skeletal parts are preserved, and there is a moderate occurrence of Middle Paleolithic stone tools. A minimum number of eight individuals are represented, and ancient mtDNA has been extracted from dental and osteological remains. Paleobiology of the El Sidrón archaic humans fits the pattern found in other Neandertal samples: a high incidence of dental hypoplasia and interproximal grooves, yet no traumatic lesions are present. Moreover, unambiguous evidence of human-induced modifications has been found on the human remains. Morphologically, the El Sidrón humans show a large number of Neandertal lineage-derived features even though certain traits place the sample at the limits of Neandertal variation. Integrating the El Sidrón human mandibles into the larger Neandertal sample reveals a north-south geographic patterning, with southern Neandertals showing broader faces with increased lower facial heights. The large El Sidrón sample therefore augments the European evolutionary lineage fossil record and supports ecogeographical variability across Neandertal populations.

A crossbeam co-ordinate caliper for the morphometric analysis of lithic nuclei: a description, test and empirical examples of application

Over the last four decades, there has been surprisingly little advance in the quantitative morphometric analysis of Palaeolithic stone tools, especially compared to that which has taken place in biological morphometrics over a comparable time frame. In Palaeolithic archaeology's sister discipline of palaeoanthropology, detailed quantitative morphometric, geometric morphometric, and even 3D geometric morphometric analyses are now seen almost as routine. This period of relative methodological stasis may have been influenced by the lack of homologous landmarks on many lithic tools (essential for any comparative analysis), especially core-based technologies of the Lower Palaeolithic. Archaeological field conditions may also prohibit the use of expensive and delicate precision instruments in certain cases. Here we present a crossbeam co-ordinate caliper that – crucially – both geometrically locates and measures distances between morphologically homologous landmarks upon lithic nuclei via a single protocol. Intra- and inter-observer error tests provide evidence that error levels associated with the instrument fall within acceptable ranges. In addition, we present empirical examples of application in the form of a multivariate analysis of 55 discrete morphometric variables, and a 3D geometric morphometric analysis of co-ordinate landmark configurations derived from Pleistocene lithic nuclei (i.e. ‘cores’ sensu lato). We also introduce to lithic studies some techniques for the study of shape variation that have previously been used with success in biological morphometric analyses. We conclude that use of an instrument such as the crossbeam co-ordinate caliper may provide a useful adjunct to traditional techniques of lithic analysis, particularly in developing a quantitative morphometric approach.

A Neandertal mandible from the Cova del Gegant (Sitges, Barcelona, Spain)

A human mandible from the site of Cova del Gegant is described here for the first time and compared with other Middle and Upper Pleistocene representatives of the genus Homo from Europe and Southwest Asia. The specimen was recovered from sediments which also yielded Mousterian stone tools and Pleistocene fauna. The preserved morphology of the mandible, particularly in the region of the mental foramen, clearly aligns it with the Neandertals, making the Cova del Gegant the only known site in Catalonia documenting diagnostic human skeletal remains in association with Middle Paleolithic stone tools. This represents an important new addition to the human fossil record from the Iberian Peninsula and joins the Bañolas mandible in documenting the course of human evolution in the northern Mediterranean region of Spain.

Methodological issues raised by laser particle size analysis of deposits mapped as Clay-with-flints from the Palaeolithic site of Dickett's Field, Yarnhams Farm, Hampshire, UK

Lower and Middle Palaeolithic stone-tools, evidence of the earliest occupation of Britain, are frequently to be found in association with deposits mapped as Clay-with-flints which cap the highest Chalk downland hilltops and plateaux of southern England. These superficial deposits exhibit great lithological variability, i.e. Clay-with-flints sensu lato (including Plateau Drift), Clay-with-flints sensu stricto, loess and waterlain brickearths, on both a local and regional geographical scale. Field observations suggest that particular facies of the Clay-with-flints deposits, in addition to the presence of solution features, may be implicated in the retention of Palaeolithic artefacts on these high-levels. Detailed interpretation of sedimentological analyses is therefore required to identify a ‘preservation potential correlation for Palaeolithic sites on deposits mapped as Clay-with-flints’. Much of what is generally known about the sedimentology of these deposits is found in literature where the classic sieve and sedimentation methods (pipette or hydrometer) have been adopted to determine quantitatively particle size distribution of soils. Refinement in particle-size methodologies of the fine fraction, through the introduction of laser diffraction granulometry, makes it difficult to compare laser research results with published data based on the use of the sieve-sedimentation methods. This presents problems when attempting to use the available data for both intra and inter Palaeolithic site analysis. Our objective was to find suitable limits for the clay, silt and sand fractions to enable calibration between the sieve-sedimentation methods and laser diffraction granulometry (which underestimates the clay fraction). The resultant methodologies, described here, allow such calibrations to be made with confidence. By applying these methodologies, geologists, soil scientists, geomorphologists, archaeologists and other workers can access important comparative sedimentological data that would otherwise not be available for interpretation of the depositional context of the sediments/soils and any artefacts they may contain. Samples from the Palaeolithic site of Dickett's Field, Yarnhams Farm, Holybourne, Hampshire, provided the focus of this work.