Rick and Lowery 2013, AMS Dating and the antiquity of shell-tempered...

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
OS-80194 44NH440 (Upper Ridge) 1560 ± 25 -24.52
OS-92580 44NH440 (Upper Ridge) 1870 ± 35 0.56