SPECIAL ISSUE

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The application of 3D modeling and spatial analysis in the study of groundstones used in wild plants processing

In recent years, several works have proved the reliability of the application of 3D modeling and spatial analysis in the study of stone tool use. Monitoring surface morphometry resulting from the use of lithic tools has the potential to objectively quantify and identify patterns of modifications associated to specific activities and worked materials. In particular, the combination of surface morphometry with a systematic experimental framework and use wear analysis has the potential of foreseeing residue distribution areas over the groundstone surfaces, hence providing a key aid in establishing sampling strategies applied to archeological specimens. Here, we propose an approach that applies 3D modeling, performed through a close-range photogrammetry, and the use of GIS software to investigate surface modifications and residue distribution on groundstones used to process wild plants. Our work comprises a dedicated experimental framework in which modern tool replicas have been used to process different species of wild plant foods through grinding, crushing, and pounding. By applying 3D modeling and spatial analysis, we were able to characterize patterns of surface modifications related to each of the worked substances and activities performed. Moreover, we monitored the distribution of starch granules over the experimental groundstone surfaces and its variation in relation to the state of the worked substance and the action carried out. Our results provide one of the first experimental dataset focused on the use of groundstones for wild plant processing, and a reliable methodology for further studies related to the exploitation of stone technology and wild vegetal substances in the past

The ‘Hidden Foods’ project: new research into the role of plant foods in Palaeolithic and Mesolithic societies of South-east Europe and Italy

The ‘Hidden Foods’ project is a new research programme aimed at reconstructing the importance of plant foods in prehistoric forager subsistence in Southern Europe, with a particular focus on Italy and the Balkans. The role of plant foods in pre-agrarian societies remains one of the major issues of world prehistory. Popular narratives still envisage ancient foragers as primarily ‘meat-eaters’, mainly as a consequence of the poor preservation of plant remains in early prehistoric contexts, and due to the employment of methods particularly focused on the contribution of animal protein to human diet (e.g. isotope analysis) (e.g. Bocherens 2009; Jones 2009; Richards 2009). Recently, new methods applied to archaeological evidence have provided a different understanding of hunter-gatherer dietary preference and interaction with the environment. Harvesting and processing might not have been the sole prerogative of agricultural societies, and plant foods seem to have played an important role amongst hunter-gatherers (e.g. Revedin et al. 2010

Melka Kunture (alto Awash, Etiopía) entre 2.000.000 y 5.000 años

Melka Kunture es un clúster de yacimientos prehistóricos situados en el altiplano etíope, a 2.000-2.200 m sobre el nivel del mar, en la cuenca alta del río Awash. El clima es más bien fresco (temperatura media anual de 17° C) y lluvioso. Los resultados palinológicos demuestran que la vegetación durante el Pleistoceno era de tipo afromontano y, por lo tanto, diferente a la de sabana que se desarrolla en cotas más bajas. Tras casi 60 años de excavaciones en 20 yacimientos y en unos 60 niveles arqueológicos distintos, la secuencia arqueológica identificada incluye el Olduvayense, Achelense, Middle Stone Age y Late Stone Age. También se han descubierto fósiles de homininos en asociación directa con industrias líticas de diferentes tecnocomplejos. Además, se conocen niveles icnológicos, que proporcionan información sobre la vida y el comportamiento de homininos y fauna. La investigación sobre la adaptación de los homininos al clima y al entorno de las tierras altas es relevante para entender cómo y cuándo se produjo el primer poblamiento de Europa

New evidence for the Middle to Upper Palaeolithic transition interval in the Danube Gorges of the Balkans

Over the past few years, new investigations in northern Bulgaria at the site of Bacho Kiro have revived the likelihood that the "Danube corridor" route served as a primary axis for the dispersal of modern humans into Europe. The association of modern humans with material remains of Protoaurignacian and Aurignacian provenance and/or transitional industries, would push the start of the dispersal across this region to 47 ka. Furthermore, fossil remains from the cave site of Peștera cu Oase in the Romanian hinterland of the Danube Gorges area of the north-central Balkans provide genetic evidence of admixtures between Neanderthal and modern human populations that might have taken place precisely along this transitory corridor. Yet, there is still relatively little in the way of evidence about, on the one hand, the last Middle Palaeolithic, and by proxy Neanderthal, and, on the other hand, the Initial and Early Upper Palaeolithic, and by proxy modern human, settlement of the region. Our recent investigations in the Danube Gorges area have brought to light two new sites, Tabula Traiana Cave and Dubočka-Kozja Cave, with Middle to Upper Palaeolithic deposits. The application of modern standards of recovery and recording have enabled us to apply a suite of cutting edge and state-of-the-art methodologies backed by extensive radiometric dating of these sites’ deposits. In this paper, we will present most recently obtained radiocarbon accelerator mass spectrometry (AMS) measurements, which allow us to discuss the chronological attribution of different levels of the two sites with more certainty. We will also offer further details regarding the knapped stone assemblages, including the results of use-wear analyses on a select number of artefacts. Finally, this evidence is integrated with the results obtained through the analyses of the faunal assemblages and by characterizing taphonomic factors that impacted their formation. Complementary data come from a relatively large pool of unidentifiable bone samples analyzed through the application of proteomic fingerprinting known as the Zooarchaeology by Mass Spectrometry (ZooMS), which has allowed us to better characterize the animal taxa composition of the faunal assemblages from the two sites and identify agents of bone accumulation. The results indicate a late continuation of the Middle Palaeolithic presence characterized by a Levallois-derived lithic industry at one of the two sites and the broadly contemporaneous appearance of the Early Upper Palaeolithic tools in the lithic assemblage of the other site. We discuss how the locations of the two sites in this specific landscape zone along the Danube might have influenced their respective uses

Origins and evolution of Modern Humans Behaviour: a view from North Africa

This special issue of Quaternary International, entitled “Origins and evolution of Modern Humans Behaviour: a view from North Africa”', is the result of the A22 Session organised by Nick Barton, Abdeljalil Bouzouggar and Nabiha Aouadi for the XVII world UISPP Congress in Burgos (Spain). The session A22 was focused on the general theme of the concept of Modern Behavior and his origin and development in North Africa, with a special focus on Maghreb. Among the oral communications presented during the session, six authors have agreed to present a paper on this Quaternary International Special Issue

"David Lubell (ed.), Holocene Prehistory in the Telidjene Basin, Eastern Algeria: Capsian Occupations at Kef Zoura D and Ain Misteheyia." (2017):

This important Volume assembled and edited by David Lubell represents a significant contribution to the understanding of human settlements in the Maghreb during the Holocene. Specifically, the focus of the book is the Capsian, a cultural horizon spread in Northern Africa along the Mediterrenean coast and the immediate inland area from Morocco to Libya, where it appears alongside the local variant called Libyco-Capsian (McBurney 1967)

Use of grass seed resources c.31 ka by modern humans at the Haua Fteah cave, northeast Libya

The recovery of a seed grinding stone from human occupation layers dating to c.31 ka in the Haua Fteah cave on the coast of the Gebel Akhdar massif in northeast Libya sheds new light on the subsistence practices of modern humans in North Africa. An integrated study of usewear and organic residue analysis confirms the use of the tool for seed grinding. Residue analysis recovered a total of 15 starch granules that could be reliably identified as belonging to wild cereals, ten of which are identified as A-type granules of Aegilops sp. (goat grass). The results of this study show that modern humans had the capacity to identify large-seeded grasses as a potential food source, perhaps targeted during periods of resource stress, and were capable of adapting pounding and grinding technologies to solve the unique problems of seed processing to render an edible food from grasses. The findings from this research show that broad-spectrum diets involving the exploitation of wild cereals were emerging during the Late Stone Age in North Africa