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- Lab number
- M-439
- Material dated
- Shell
- Taxa dated
- freshwater mussel shell
- Type of date
- Archaeological
- Locality
- Marshall
- Submitter
- J.B. Griffin
- Date uploaded
- January 15, 2024
- Updater
- Wyoming Team
- Date updated
- December 31, 2020
- Measured Age
- 2110 ± 100
- Normalized Age
- 2335 ± 100
- δ13C (per mil)
- -8.0
- Significance
- Middle Woodland, anomalous, old
- Context
- mound containing Late Hopewell Zoned pottery and other artifacts
- Additional information
- Radiometric