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Lab number
Beta-169838
Material dated
Shell
Taxa dated
marine, bead
Type of date
Archaeological
Locality
Contra Costa
Date uploaded
January 15, 2024
Updater
Wyoming team
Date updated
December 31, 2020
Normalized Age
1690 ± 40
δ13C (per mil)
-1.4
Context
F2c, located at northern tip of peninsula on small rise elevated several feet above sea level

References