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INTRODUCTIONRecent technological readings of stone artefacts from Guanyindong Cave site,south-west China,have identified the Levallois strategy in sedimentary deposits dated to approximately 170 00080 000 years ago.Some specimens in the assemblage are susceptible to misinterpretation.Here,we provide further detailed descriptions of these specimens to clarify that they possess attributes consistent with the Levallois concept,as it has been widely employed elsewhere.