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- Lab number
- Beta-186023
- Material dated
- Shell
- Taxa dated
- marine, Olivella, L2a
- Type of date
- Archaeological
- Locality
- Contra Costa
- Date uploaded
- January 15, 2024
- Updater
- Wyoming team
- Date updated
- December 31, 2020
- Normalized Age
- 4020 ± 40
- δ13C (per mil)
- -0.8
- Context
- Unit 05, L2a Olivella bead