Micro sample 464


Ten maize starch grains (plus 5 tentatively identified as such) were recovered from a handstone, or trianguar-shaped grinding stone (Artifact No. CL-82b) in Unit 1 Level 11 (Dickau et al. 2007: Table 1; Dickau 2010). The radiocarbon date most closely associated with this artifact is TEM-123, obtained from a charcoal sample (Ranere and Cooke 1996:52).

Radiocarbon Date

Attached Files

Maize starch recovered from surface of grinding stone CL-82b, dating to approx. 7800 cal BP. (Dickau et al. 2007:3655, Fig. 2g). Scale bar = 10 um.

References Cited

Dickau, R.
    2010    Microbotanical and Macrobotanical Evidence of Plant Use and the Transition to Agriculture in Panama. In Integrating Zooarchaeology and Paleoethnobotany: A Consideration of Issues, Methods, and Cases, edited by A. M. VanDerwarker and T. M. Peres, pp. 99-134. Springer, New York.

Dickau, R., A. J. Ranere and R. G. Cooke
    2007    From the Cover: Starch Grain Evidence for the Preceramic Dispersals of Maize and Root Crops into Tropical Dry and Humid Forests of Panama. Proceeding of the National Academy of Sciences USA 104(9):3651-3656.


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