3. Producción
Browse
14 results
Search Results
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, New 3D morpho-technological data on fishtail points from tropical lowlands, Piauí State, Northeastern Brazil(Taylor and Francis Ltd., 2024-01-01)Here we report two newly discovered Fishtail projectile points from Jurema and Anísio de Abreu, southern Piauí, northeastern Brazil. These are two complete bifacial pieces made of flint and chalcedony. Only one Fishtail point has been previously reported north of the 22° parallel. This paper significantly adds new data by providing a detailed analysis of the morphology, technology, use-wear, and a 3D semi-automated analysis of this important cultural marker in South America. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, An integrative study of new environmental and cultural data from the Hoabinhian of Laang Spean Cave (Cambodia) including modern human remains(Elsevier B.V., 2024-10-01)Although the Hoabinhian culture is renowned for its unifacial pebble tools and its discovery dates back more than a century, only a handful of sites provide complete information on this period. The site of Laang Spean, in Cambodia, has recently been described as a burial cave for the Neolithic period, but it was previously known as an emblematic Hoabinhian site for Cambodia. More comprehensive studies indicate that it offers a wide window onto the settlement of the Hoabinhian between 12900 and 5000 cal BP. The archaeological layer of the Hoabinhian culture at Laang Spean include faunal, human and lithic remains that enrich our understanding of the environment and way of life of this ancient culture. The faunal assemblage, dominated by bovines, tortoises, molluscs, and cervids, reflects a diverse ecosystem and the adaptability of the Hoabinhian people. The presence of both humid and dry forest indicators, alongside significant wetland areas, suggests their ability to exploit a variety of habitats. The lithic assemblage, characterized by a lower representation of unifaces and greater use of split cobbles, reflects a continuity in basic lithic reduction strategies with minor diachronic changes in raw material selection and tool production, possibly reflecting technological adaptations and increased intensity of occupation. The discovery of human remains, though challenging to contextualize precisely, contributes to understanding settlement patterns and cultural links in prehistoric Southeast Asia. The new data allow for a deeper interpretation of the environmental adaptations and hunting strategies of the Hoabinhian people, including their responses to climatic changes, such as the end of the Younger Dryas. This enhanced knowledge significantly contributes to our comprehension of the environmental dynamics and subsistence practices in prehistoric Southeast Asia and underscores the necessity of reassessing key Hoabinhian sites with modern excavation and dating techniques. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Archaeological and Geological Evidence at Monte Verde II, Chile, Supports a Human Occupation at ∼14,500 Years Ago(Taylor and Francis Ltd., 2026-01-01)In recent articles, Surovell et al. (2026a. “A Mid-Holocene Age for Monte Verde Challenges the Timeline of Human Colonization of South America.” Science 391 (6791): 1283–1288; Surovell, Todd A., César Méndez, Juan-Luis García, Christopher Lüthgens, Jay M. Thompson, and Claudio Latorre. 2026b. “Reply to Waters et al.: Stratigraphy, Chronology, and Redeposition at Monte Verde.” Science 391 (6791): 1283–1288) and Méndez et al. (2026. “Misconceptions of the Stratigraphic and Landforms Relations at Monte Verde: A Reply to Dillehay et al.” Science 391: 1283–1288) challenge the age and cultural integrity of the Monte Verde II site in south-central Chile, which is dated to approximately 14.5 ka. We demonstrate that their claims are unsupported. They contain erroneous information and methodological and interpretive flaws. We uphold the original interpretation of MV-II as a late Pleistocene human occupation. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Paiján Point Technology in Brazil? Morpho-technological Considerations on a Crystal Quartz Point(Taylor and Francis Ltd., 2026-01-01)We report a Paiján-style crystal quartz projectile point from Ilha dos Moisés (São Francisco River, Northeast Brazil), far beyond the securely documented Andean range of Paiján technology and recovered from a surface palimpsest. Using diagnostic criteria, morphometrics, and technological comparison with the Peruvian reference series, we assess similarity at the artifact level. The specimen displays a pronounced apical “needle,” a convex-sided body, and a barbed basal unit, shaped through controlled bifacial thinning by soft-hammer percussion and localized pressure retouch within the notches, resulting in marked bilateral symmetry and minimal thickness variation. Selective cortex retention and blank orientation to enhance internal planar features further suggest deliberate aesthetic planning and display value. Despite the surface context, the specimen anchors an artifact-level identification of the Paiján style in Northeast Brazil and provides explicit criteria for future comparative testing. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Technological variability in the Hoabinhian: the example of slab lithic production from the Doi Pha Kan site (Northern Thailand)(Elsevier BV, 2025-02-12)This research examines the unique lithic technology at the Doi Pha Kan site dated 13 300 to 12 800 calBP in Northern Thailand during the Hoabinhian period (which globally extends from the final Late Pleistocene to Mid Holocene) by means of a technological and morpho-metric analysis. While it shares similarities with typical Hoabinhian assemblages, significant deviations in reduction methods, targeted tool types, and the singular presence of reduction sequences dedicated to the production of a diversity of slab tools. Nevertheless, the study blanks the existence of a distinct population within the Hoabinhian world, indicating a shift towards lighter, composite tools, which may represent a modern trajectory or the final phase of the Hoabinhian culture. The study also explores the potential influence of climatic fluctuations at the end of the Late Pleistocene on human behaviors and the evolution of modern human diversity in Southeast Asia. However, due to limited available paleoenvironmental data and data with a few seasonal contrasts in the tropics within a world without winter, a direct connection remains elusive for the moment. The study underscores the need for further research and interdisciplinary collaboration for comprehensive understanding of human paleoecology in the region as well as innovative technical adaptation.3 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Techno-structural and 3-D geometric morphometric analysis applied for investigating the variability of Holocene unifacial tools in tropical Central Brazil(Public Library of Science, 2025-01-01)During the transition from the Pleistocene to the Holocene and in the early Holocene period, hunter-gatherer communities across tropical South America deployed a range of technological strategies to adapt to diverse environmental conditions. This period witnessed a rich tapestry of technological practices, from enduring, widely disseminated tools to local and sporadically utilized technologies, shaping a multifaceted landscape of technological traditions. Lithic technology during this period was mainly marked by localized sourcing of raw materials, the use of multifunctional tools, a variety of projectile point designs, and the frequently utilization of unifacial shaping technology. In tropical Central Brazil, the Itaparica technocomplex, with unique unifacial lithic tools like limaces, is a pivotal innovation from the Late Pleistocene through the Holocene. However, the factors influencing their morphological and structural variability remain largely unexplored, obscuring our understanding of their ergonomics and their role as mediators between humans and tropical environments. This study hypothesizes that the variability observed within and among unifacial tools from the GO-Ni sites in Central Brazil is a result of a combination of factors, including raw material availability and functional and ergonomic requirements. To test this hypothesis, a study of 67 unifacial tools from this region was conducted, employing techno-structural analysis and 3D geometric morphometrics. This approach was designed to precisely quantify tool geometry and uncover their functional potentials. The analysis revealed significant variability within the techno-structural groups, often intersecting with typological classifications. These results indicate that despite their production attributes, unifacially shaped artifacts demonstrate considerable morpho-structural diversity. The study delineated nine distinct techno-structural groups, each suggesting potentially different functional organizations and deviating from conventional typologies. These results indicate that unifacially shaped artifacts, while embodying a novel technological paradigm of production, exhibit a broader spectrum of variation mainly due to different tool functions. The combined approach adopted in this research highlights on the cultural significance of unifacial tools within Paleoamerican technological systems. It suggests probable unique tool concepts specific to the study area, challenges existing classifications, and enriches our comprehension of early lithic technology in South America.1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Quartz Crystal Fishtail Projectile Point and Paiján Technology from the Pampa Lechuza Site, South-Central Coastal Desert of Peru(Taylor & Francis, 2025-01-01)Fishtail projectile points, found from Central America to southern South America during the Late Pleistocene, are typically flint-based but occasionally crafted from quartz. This work examines quartz crystal specimens from Peru's Pampa Lechuza site (Ica Valley), dated to the Late Pleistocene–Early Holocene, including Fishtail and Paiján Points. The co-occurrence of these technologies in south-central Peru suggests a more intricate scenario of Andean peopling during the Pleistocene–Holocene transition.1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Obsidian geochemistry and lithic debitage analysis in the southern Central Andes: Insights from the Late Pleistocene–Early Holocene assemblage at Pampa Lechuza, coastal desert of Peru(Elsevier BV, 2025-05-01)This study examines a lithic assemblage of 682 obsidian artifacts from Pampa Lechuza, a Late Pleistocene–Early Holocene site located in the coastal desert of south-central Peru. Geochemical and technological methods are used to determine where the obsidian came from and whether the artifacts are the result of early core reduction or later tool production. Portable X-ray fluorescence (pXRF) analysis shows that over 99% of obsidian artifacts come from the Quispisisa source and less than 1% from a yet unidentified source or sub-source. The technological analysis reveals that most of the artifacts are byproducts of advanced reduction stages. These findings enhance our comprehension of Late Pleistocene-Early Holocene mobility patterns and resource procurement strategies in south-central Peru, highlighting Pampa Lechuza's role in early regional obsidian distribution networks.3 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Microscopic Use-Wear Evidence for an Itaparica Uniface as a Hafted Multifunctional Tool(Taylor & Francis, 2025-01-01)This report presents the results of a microscopic use-wear analysis on a unifacial tool from an Itaparica-like context at the Toca dos Coqueiros site, in Serra da Capivara National Park, Northeastern Brazil. The analysis focuses on evidence of hafting and multifunctionality. These artifacts, found in central and northeastern Brazil from the late Pleistocene to the early Holocene, are associated with the Itaparica technocomplex. We present evidence of butchery, ochre processing, and hafting with resin residues, suggesting complex hafting systems. Functional hypotheses are proposed based on microscopic and macroscopic observations.1