Springer and Flemal, 1981

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
ISGS-465 11DU?P (DuPage mastodon) IL 15240 ± 120 -25.0
ISGS-482 11LS? (Ottawa Silica Quarry) IL 12410 ± 130 -25.0
ISGS-483 11LS? (Ottawa Silica Quarry) IL 11080 ± 350 -25.0
ISGS-485 11DU?P (DuPage mastodon) IL 13210 ± 350 -20.0
ISGS-489A 11LS? (Ottawa Silica Quarry) IL 11135 ± 210 -10.0
ISGS-489B 11LS? (Ottawa Silica Quarry) IL 11070 ± 110 -20.0