Crane and Griffin, 1966: 267

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
M-1592 11WT40 (Lawrence) IL 780 ± 110 -25.0
M-1593 11WT40 (Lawrence) IL 790 ± 110 -25.0
M-1594 11WT40 (Lawrence) IL 690 ± 110 -25.0
M-1595 11WT40 (Lawrence) IL 680 ± 110 -25.0