Resumen de What did grinding stones grind? New light on Early Neolithic subsistence economy in the Middle Yellow River Valley, China

Li Liu, Judith Field, Richard Fullugar, Sheahan Bestel, Xingcan Chen, Xiaolin Ma

• Grinding stones have provided a convenient proxy for the arrival of agriculture in Neolithic China. Not any more. Thanks to high-precision analyses of use-wear and starch residue, the authors show that early Neolithic people were mainly using these stones to process acorns. This defines a new stage in the long transition of food production from hunter-gatherer to farmer.