Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. Indexed x-ray diffraction pattern acquired from the strongyloxea from the demosponge T. aurantium.
  • fig. S2. Indexed x-ray diffraction pattern acquired from the main shaft of the dichotriaene from the demosponge S. ponderosus.
  • fig. S3. Indexed x-ray diffraction pattern acquired from a mature sterraster from the demosponge G. cydonium.

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