Lab number Site Province / State Normalized age δ13C (per mil)
ISGS-A3339 11S? (East St. Louis) IL 1125 ± 25 -19.9
ISGS-A3340 11S? (East St. Louis) IL 945 ± 20 -9.2
ISGS-A3341 11S? (East St. Louis) IL 1045 ± 15 -18.3
ISGS-A3344 11S? (East St. Louis) IL 890 ± 20 -9.5
ISGS-A3345 11S? (East St. Louis) IL 965 ± 20 -11.1
ISGS-A3347 11S? (East St. Louis) IL 940 ± 15 -18.9
ISGS-A3348 11S? (East St. Louis) IL 975 ± 20 -16.5
ISGS-A3349 11S? (East St. Louis) IL 885 ± 15 -10.0
ISGS-A3350 11S? (East St. Louis) IL 945 ± 20 -12.7
ISGS-A3351 11S? (East St. Louis) IL 960 ± 20 -10.5
ISGS-A3353 46MS61 (Orchard) WV 355 ± 20 -10.0
ISGS-A3354 46MS61 (Orchard) WV 340 ± 15 -10.0
ISGS-A3357 13ML176 (Wall Ridge) IA 645 ± 15 -23.1
ISGS-A3367 11S? (East St. Louis) IL 900 ± 15 -10.9
ISGS-A3386 13ML12 (House III) IA 640 ± 15 -8.6
ISGS-A3387 13ML12 (House III) IA 655 ± 15 -10.8
ISGS-A3388 13ML12 (House III) IA 625 ± 15 -27.8
ISGS-A3389 13ML12 (House III) IA 700 ± 15 -8.7
ISGS-A3390 13ML12 (House III) IA 695 ± 20 -9.1
ISGS-A3391 13ML12 (House III) IA 705 ± 20 -9.2
ISGS-A3392 13ML12 (House III) IA 825 ± 15 -25.4
ISGS-A3393 13ML12 (House III) IA 830 ± 15 -9.6
ISGS-A3394 13ML12 (House III) IA 795 ± 15 -25.9
ISGS-A3395 13ML12 (House III) IA 790 ± 15 -27.0
ISGS-A3396 13ML12 (House III) IA 805 ± 15 -26.4
ISGS-A3397 13ML12 (House III) IA 820 ± 15 -10.0
ISGS-A3398 13ML12 (House III) IA 730 ± 15 -9.3
ISGS-A3399 13ML12 (House III) IA 765 ± 15 -8.6
ISGS-A3400 13ML12 (House III) IA 770 ± 15 -9.0
ISGS-A3401 13ML12 (House III) IA 770 ± 15 -9.3