Science Advances

Supplementary Materials

The PDF file includes:

  • Supplementary Text
  • Fig. S1. High-definition x-ray μCT image of holotype skeleton (DIP-S-0907).
  • Fig. S2. High-definition x-ray μCT images of holotype skeleton (DIP-S-0907).
  • Fig. S3. Probable sacral ribs, right dorsolateral view, x-ray μCT image of holotype.
  • Fig. S4. Precloacal vertebrae of X. myanmarensis and other snakes.
  • Fig. S5. Scales of and second-scale specimen.
  • Fig. S6. Mid-sagittal sections through posterior precloacal vertebrae of two juvenile snakes.
  • Fig. S7. Distribution of Late Jurassic (Barremian)–Late Cretaceous (Maastrichtian) snakes represented on a map of Cenomanian arrangement of land masses.
  • Fig. S8. Strict consensus of 2040 equally parsimonious trees.
  • References (3393)

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Other Supplementary Material for this manuscript includes the following:

  • Data file S1. Data matrix for phylogenetic analysis: Nexus file format.

Files in this Data Supplement: