Crane and Griffin, 1972: 204-205

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
M-1190 11J12 (Twenhafel) IL 1150 ± 150 -25.0
M-1191 11J12 (Twenhafel) IL 550 ± 100 -25.0