Ancient Maize Map

Information

ID: 492
Other ID: SFU-110
Type: MicroSample
Subtype: starch grain
Site: Loma Alta
Depositional context: midden

One starch granule was recovered from a ground stone tool (FS380, Sample SS278-2). The date was taken from associated charcoal in the same layer and context as the stone tool (Zarrillo et al. 2008).

Radiocarbon Date

Lab number: SFU-110
Dating method: AMS
Directly dated: No
Dated material: charcoal
Contaminated?: No
Lower cal BP (years): 5887
Median cal BP (years): 5443
Upper cal BP (years): 4975
Uncal BP (years): 4790
± 1 σ (years): 160
δ13C:

Attached Files

References Cited

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.

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