Real Alto

Information

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?
GX-7430 MicroSample phytolith 3845 240 4191 4838 3583 No
GX-7429 MicroSample phytolith 4050 185 4466 4960 3926 No

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References Cited

Pearsall, D. M.
    1978    Phytolith Analysis of Archeological Soils: Evidence for Maize Cultivation in Formative Ecuador. Science 199(4325):177-178.

Pearsall, D. M., K. Chandler-Ezell and J. A. Zeidler
    2004    Maize in Ancient Ecuador: Results from Residue Analysis of Stone Tools from the Real Alto Site. Journal of Anthropological Science 31:423-442.

Zarrillo, S., D. M. Pearsall, J. S. Raymond, M. A. Tisdale and D. J. Quon
    2008    Directly dated starch residues document early formative maize (Zea mays L.) in tropical Ecuador. Proceedings of the National Academy of Sciences, USA 105(13):5006–5011.