Jensen Amber et al. 2004 Radiocarbon Assay and X-ray Diffraction Analysis of pictograph samples from Tall Rockshelter Davis Mountain. Texas Journal of Big Bend Studies 16:31-46

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-146365 41JD10 (Tall Rockshelter) 1050 ± 60 -24.4