Supplemental Material: Early formation and taphonomic significance of kaolinite associated with Burgess Shale fossils

Supplemental methodological details, antibacterial properties of clays, other minerals with distinct fossil/matrix distributions, summaries of mineralogy by taxon, data tables, statistical summaries, and light/scanning electron microscopy–energy-dispersive X-ray spectroscopy images of fossil specimens showing X-ray diffraction selected areas.