Dunham et al 2003, Collective burial in late prehistoric Virginia...

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-113662 44OR1 (Rapidan Mound) 560 ± 50
Beta-113664 44AU20 (Lewis Creek Mound) 930 ± 50
Beta-113665 44AU20 (Lewis Creek Mound) 960 ± 50