McElroy 2013, A Prehistoric Arms Race:… BA thesis U Montana

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-282794 24BH3078 (Sarpy Bison Kill and Camps) MT 1980 ± 40 -17.5
Beta-348370 24BH3078 (Sarpy Bison Kill and Camps) MT 1890 ± 30 -16.0
Beta-358433 24BH3078 (Sarpy Bison Kill and Camps) MT 2050 ± 30 -16.7