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Author: search.filters.author.Ruxi YangStart date: 2025

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    The micro-plant remains preserved on lithics and in the associated sediment of the Hoabinhian Laang Spean cave site, Battambang province, Cambodia
    (Cold Spring Harbor Laboratory, 2026-07-27)
    A bstract This study seeks to advance understanding of how ancient Hoabinhian communities engaged with the diversity of their environments, focusing on plant resource management and the role of plants in technological and subsistence strategies at the Laang Spean site, Cambodia. The methodological approach relies on phytolith assemblages recovered from sediments associated with micro-plant residues adhering to the lithic tools, interpreted using anatomical and histological knowledge of plant tissues. Phytolith extraction from nine stratigraphic layers revealed distinct differences between Hoabinhian contexts (Stratigraphical Unit=SU): the layer 9 contained mainly palm trees phytoliths, while layers 10 and 11 showed higher phytolith diversity and diagnostic grass forms. Besides the Monocots strong assemblage results between the two main periods studied, a diversity of phytolith arboreal taxa indicate broader plant use and environmental complexity during Hoabinhian occupations (consistent with the other archaeobotanical studies held on Hoabinhian archaeological sites in the region). Upon the nine lithics artefacts studied, only one has delivered micro-plant remains identified as leaf-culm part of Monocots (plants that do not produce wood), and most probably of bamboo origin. This multidisciplinary research aims to refine interpretations of Hoabinhian plant exploitation (subsistence and environmental context), and contributes to current debates on “forest technologies” in Southeast Asia.
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    Cultural change between 40-50 ka in southern China: Implications for modern human dispersals in Eurasia
    (Elsevier BV, 2025-09-01)
    Cultural remains, though indirect compared to fossil and genetic evidence, are critical in reconstructing the dispersals of modern humans across Late Pleistocene Eurasia. This work evaluates the cultural materials from southern China and its surrounding regions to reassess the timing and context of the potential arrival of modern humans. We emphasize technological innovations and symbolic activities as defining markers of cultural change. Our analysis reveals that the earliest remarkable cultural changes, as evidenced by complex technologies and symbolic objects, emerged around 45,000 years ago in southern China. These innovations align temporally with the significant proliferation of sites across South China, mirroring patterns observed in other parts of Eurasia. The most parsimonious explanation for the abrupt cultural changes at this time is the arrival and dispersal of modern humans in southern China between 40,000 and 50,000 years ago as part of a broader global migration during the Late Pleistocene. The cultural perspective not only redefines the timeline for modern human arrival in southern China but also underscores the transformative impact of their presence on the region's cultural, demographic, and genetic histories, in parallel with similar processes across Eurasia.
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