Science Advances

This PDF file includes:

• Table S1. Sample OSL ages and dose rate data.
• Table S2. Radon loss effects on each Gault OSL sample.
• Table S3. Summary of the Gault Assemblage.
• Table S4. Summary counts of the Gault biface assemblage.
• Fig. S1. A representative decay curve (upper), growth curve (middle), and plot showing sensitivity changes through the SAR cycle (lower) for Gault 11-18.
• Fig. S2. Equivalent dose (D_e) distributions for all samples displayed in a histogram (left) and radial plot (right).
• Fig. S3. Location of the Area 15 excavation block and the excavation grid and profile.
• Fig. S4. Relationship between the stratigraphy and cultural components in Area 15.
• Fig. S5. Results of the geoarcheological analysis of the sediments in Area 15.
• Fig. S6. Andice projectile point (left) with representative diagnostic notching flakes (right).
• Fig. S7. Backplots of northing (blue) and easting (red) profiles showing the elevation of diagnostic Andice notching flakes and the cultural components discussed in the text.
• Fig. S8. Limestone bedrock of Area 15, with three sets of flutes scoured into the limestone (discussed in the text).
• Fig. S9. Pollen data from Boriack Bog and the NGRIP and GRIP ice core record as compared to stratigraphic units at Area 15.
• Fig. S10. Gault Assemblage stone tool types and frequency (see table S2).
• Fig. S11. Gault Assemblage projectile points.
• Fig. S12. Principal components analysis of the Gault Assemblage stemmed projectile points and the Gower and Uvalde types.
• Section S1. Area 15 stratigraphy
• Section S2. Context of early dates in North America
• Section S3. Gault Assemblage in Area 15
• References (43–85)

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