A.M. Johnson, 1977: 18

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-1901 39ST56 (Sommers) SD 1120 ± 60 -22.16
Beta-1902 39ST56 (Sommers) SD 1290 ± 70 -22.12
WIS-743 39ST238 (Durkin) SD 640 ± 55 -26.6
WIS-746 39ST238 (Durkin) SD 655 ± 60 -27.9