Ancient Maize Map

Information

ID: 454
Other ID: AA-38771
Type: MicroSample
Subtype: phytolith
Site: San Andres
Depositional context: swamp

Phytoliths were found in association with this dated sample at a depth of 1,125 cm in core SAV-4 (Pohl et al. 2007:6872). More maize phytoliths were found in this core with no associated dates but which could be up to 100 years earlier than this sample (Pohl et al. 2007).

Radiocarbon Date

Lab number: AA-38771
Dating method: AMS
Directly dated: No
Dated material: wood
Contaminated?: No
Lower cal BP (years): 7252
Median cal BP (years): 7101
Upper cal BP (years): 6993
Uncal BP (years): 6208
± 1 σ (years): 47
δ13C:

Attached Files

References Cited

Pohl, M. E. D., D. R. Piperno, K. O. Pope and J. G. Jones
2007 Microfossil Evidence for Pre-Columbian Maize Dispersals in the Neotropics from San Andrés, Tabasco, Mexico. Proceedings of the National Academy of Sciences USA 104(16):6870-6875.

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