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- Lab number
- M-9
- Material dated
- Shell
- Taxa dated
- freshwater mollusc shell; coquille de mollusque d'eau douce
- Type of date
- Archaeological
- Locality
- Vanderburgh
- Submitter
- G.A. Black
- Date uploaded
- January 17, 2024
- Updater
- Wyoming Team
- Date updated
- December 31, 2020
- Measured Age
- 1980 ± 130
- Normalized Age
- 2255 ± 140
- δ13C (per mil)
- -8.0
- Significance
- Mississippian, anomalous, old, anormal, vieux
- Context
- Mound F, primary surface
- Additional information
- Radiometric
- Comments
- Date was dismmissed because of deveation from expected occupation dates and stratigraphic conflicts (Black 1967; Hilgemen 2000)