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- Lab number
- M-198
- Material dated
- Shell
- Taxa dated
- freshwater mollusc shell; coquille de mollusque d'eau douce
- Type of date
- Archaeological
- Locality
- Spencer
- Submitter
- G.A. Black
- Date uploaded
- January 17, 2024
- Updater
- Wyoming Team
- Date updated
- December 31, 2020
- Measured Age
- 5940 ± 200
- Normalized Age
- 6215 ± 200
- δ13C (per mil)
- -8.0
- Significance
- Middle Archaic; Archaïque moyen
- Context
- shell heap on the north bank of the Ohio River, 7 ft depth
- Additional information
- Radiometric