From Ray Mauldin and the Cannon Ranch Research

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-270952 41PC396 (Coyote Run) TX 1110 ± 40 -21.4
Beta-270953 41PC396 (Coyote Run) TX 1430 ± 40 -21.0
Beta-277701 41PC396 (Coyote Run) TX 920 ± 40 -23.7