Atkins.

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-370424 41HG255 (Cantu) 4730 ± 40 -2.8
Beta-370066 41HG253 (El Caracol) 1530 ± 30 -24.0
Beta-370064 41HG251 (Garza) 430 ± 30 -23.0
Beta-370067 41HG254 (Jose "Ribs" Costilla) 3710 ± 30 -19.7
Beta-370063 41HG250 (Mejillon) 1080 ± 30 -23.8
Beta-370062 41HG249 (Resaca Vieja) 830 ± 30 -23.5