Reeves, 1983: 272

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
GX-319 5WL32 (Uhl) CO
GX-526 5JF6 (Willowbrook) CO
M-637 25HO23 (Kelso) NE 1150 ± 100 -25.0