This site has residential debris from Middle Woodland and Jersey Bluff period occupations. Though the maize appeared to be associated with a Middle Woodland pit feature, it is likely that it dates to the later Jersey Bluff period (Conard et al. 1984:446).

ID Other ID Type Subtype Uncal BP (years) ± 1 σ (years) Median cal BP (years) Lower cal BP (years) Upper cal BP (years) δ13C Contaminated?
NSRL-302 MacroSample kernel 1450 350 1402 2152 691 No

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References Cited

Conard, N., D. L. Asch, N. B. Asch, D. Elmore, H. Gove, M. Rubin, J. A. Brown, M. D. Wiant, K. B. Farnsworth and T. G. Cook
    1984    Accelerator Radiocarbon Dating of Evidence for Prehistoric Horticulture in Illinois. Nature 308(5958):443-446.

Crawford, G. W., D. G. Smith and V. E. Bowyer
    1997    Dating the Entry of Corn (Zea mays) into the Lower Great Lakes Region. American Antiquity 62(1):112-119.