Figure 4

Bayesian model of T16 radiocarbon dates and the mean 14C date of Ust-Ishim H. sapiens femur. The IUP assemblage is associated with Unit 3c, and later UP assemblages are associated with Unit 3b and Unit 2/3a. The calibrated date of the earliest H. sapiens fossil in Northeast Asia, Ust-Ishim (Fig. 1) is in red. Dates are calibrated using IntCal1378; the model and boundaries were calculated using OxCal 4.379 including a General t-type Outlier Model80. The results are aligned with the NGRIP δ18O climate record.