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Sago-Type Palms Were an Important Plant Food Prior to Rice in Southern Subtropical China

Figure 2

Stone tools examined for starch residues (1#–8#) and phytoliths (9#–12#).

White dots and arrows indicate sampling locations. Scale bar: 5 cm. 1-n indicate sample numbers used in Table 1.

doi: https://doi.org/10.1371/journal.pone.0063148.g002