Thomas et al. 2004, The Burkett site...

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
Beta-135123 23MI20 (O'Bryan Ridge) MO 4000 ± 50
Beta-140461 23MI20 (O'Bryan Ridge) MO 4260 ± 70
Beta-140463 23MI20 (O'Bryan Ridge) MO 3960 ± 80