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- Lab number
- UM-340
- Material dated
- Shell
- Taxa dated
- Freshwater mussels
- Type of date
- Archaeological
- Locality
- Columbia
- Date uploaded
- January 15, 2024
- Updater
- Wyoming Team
- Date updated
- December 31, 2020
- Measured Age
- 3915 ± 85
- Normalized Age
- 4127 ± 90
- δ13C (per mil)
- -12.0
- Context
- Small lenses of mussel shell at the base of the midden: Test Pit 1, Zone 2, sand and clay filled Pit 2
- Additional information
- Radiometric
- Comments
- No diagnostic material, but Stallings in midden (Morrow Mtn. underneath)