Science Advances

Supplementary Materials

The PDF file includes:

  • Supplementary Text
  • Fig. S1. Additional specimens of C. spinosa showing details of overall anatomy.
  • Fig. S2. Morphology of the palps of Canadia spinosa and Kootenayscolex barbarensis.
  • Fig. S3. Gill morphology and attachment in Canadia spinosa.
  • Fig. S4. Additional images and camera lucida drawings of anterior and axial nervous system of C. spinosa.
  • Fig. S5. Elemental map of USNM83929C.
  • Fig. S6. Additional elemental maps of USNM83929B showing the same region as Fig. 2A.
  • Fig. S7. Phylogenetic position of C. spinosa based on morphological character matrix using the mkv + gamma model and ancestral state reconstruction.
  • Fig. S8. Three-dimensional reconstructions of C. spinosa by Lars Fields.
  • Table S1. Details of fossil material analyzed.
  • Legend for movie S1
  • References (5176)

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.mov format). Movie of three-dimensional reconstruction of C. spinosa by Lars Fields.
  • Data file S1. Character taxon matrix in NEXUS format.

Files in this Data Supplement: