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United States / CO / Montrose County / 5MN4253 (Schmidt site) / Beta-139119

Lab number
Beta-139119
Material dated
Seeds
Taxa dated
Zea mays
Type of date
Archaeological
Locality
Montrose
Date uploaded
January 15, 2024
Updater
Wyoming team
Date updated
December 31, 2020
Normalized Age
2010 ± 40
δ13C (per mil)
-11.2
Context
Structure 1, Locus 3. See description of structure under B-117464. C14 sample is described as a piece of Zea mays from the floor. The 3 dates from Structure 1 are statistically contemporaneous, yielding an averaged date of 2001 +/- 60 BP (uncalib). The calibrated 1 sigma date is 55 BC to AD 75 (prob. 0.966).

References