Recently, Professor Yang Yuzhang's team from the Department of Science and Technology History and Archaeology of the University of Science and Technology of China cooperated with collaborators to analyze the source of plant species and damage characteristics of residual ancient starch grains extracted from the surface of some stone tools excavated from the Shuangdun site in Bengbu, Anhui Province, and for the first time obtained direct evidence of the transformation of the grinding rod of the human plant-based food processing tool from the middle and late Neolithic to the pestle-mortar combination tool. The relevant results were recently published online in archaeological dating. (Science and Technology Daily reporter Wu Changfeng)
Source: Science and Technology Daily
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