Ancient Maize Map

Information

ID: 418
Other ID: Beta-198621
Type: MicroSample
Subtype: starch grain
Site: Loma Alta
Depositional context: midden

Starch granules (3) recovered from charred organic residues on the inner surface of a cooking-pot sherd (FS1041, sample 6). The AMS date was on the charred residue which had, embedded within it, the starch granules (Zarrillo et al. 2008:5008).

Radiocarbon Date

Lab number: Beta-198621
Dating method: AMS
Directly dated: Yes
Dated material: organic residue on pottery
Contaminated?: No
Lower cal BP (years): 5279
Median cal BP (years): 5001
Upper cal BP (years): 4861
Uncal BP (years): 4470
± 1 σ (years): 40
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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