Plant microremains provide direct evidence for the functions of stone knives from the Lajia site, northwestern China

@article{Ma2014PlantMP,
  title={Plant microremains provide direct evidence for the functions of stone knives from the Lajia site, northwestern China},
  author={Zhikun Ma and Quan Li and Xiujia Huan and Xiaoyan Yang and Jin-shu Zheng and Maolin Ye},
  journal={Chinese Science Bulletin},
  year={2014},
  volume={59},
  pages={1151-1158}
}
A large number of stone knives have been recovered from Neolithic archaeological sites in East Asia. However, direct evidence regarding the functions of the stone knives has been scarce, and hence, their functions have remained controversial. In this study, we recovered and analysed ancient starch grains and phytoliths from residues adhering to stone knives excavated from the Lajia site, Qinghai Province, northwest China, thus providing direct evidence for the functions of the knives. Our… 
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