Crane and Griffin, 1970: 166

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
M-1967 23CE152 (Bowling Stone Mound) MO 1560 ± 140 -25.0
M-1969 23SL78 (Kram Farm) MO 960 ± 110 -25.0