Fig. 7: Synthesis of palaeontological, archaeological, climatological, and megafaunal sedaDNA data.
From: Collapse of the mammoth-steppe in central Yukon as revealed by ancient environmental DNA
Source data are provided as a Source Data file, see the following references for original data sources. A Dated fossils of select megafaunal taxa in eastern Beringia165, see Supplemental Fig. 1. B Earliest archaeological sites in northwestern North America188, see Supplemental Figs. 2–3 and Supplemental Table 2. C Central Yukon permafrost samples analyzed in this study with 2σ modelled age ranges, see Supplementary Figs. 5–7. D Greenland Ice Sheet Project 2 (GISP2) oxygen isotope profiles at 2 m intervals189. E Onset of the Younger Dryas, and alleged cosmic impact hypothesis190.
