Ancient Maize Map

Information

ID: 491
Other ID: SFU-123
Type: MicroSample
Subtype: starch grain
Site: Loma Alta
Depositional context: midden

Starch granules (1 and 7) recovered from two ground stone tools (FS153, Sample SS275 and FS153, Sample SS275-2). The date was taken from associated charcoal (Zarrillo et al. 2008).

Radiocarbon Date

Lab number: SFU-123
Dating method: AMS
Directly dated: No
Dated material: charcoal
Contaminated?: No
Lower cal BP (years): 6174
Median cal BP (years): 5598
Upper cal BP (years): 5042
Uncal BP (years): 4920
± 1 σ (years): 200
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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