Supplementary Data 1-6 of "The oldest gnathostome teeth"

<strong>Supplementary Data 1</strong>. Volume rendering of the holotype of <em>Qianodus</em> (IVPP V26641) based on synchrotron X-ray tomography data. Colour coded features: orange, progenitor tooth row; green, trailing tooth row; yellow, accessory teeth; grey, whorl base. Rendering generated in Mimics 19.0.
<strong>Supplementary Data 2.</strong> Volume rendering of synchrotron X-ray tomography data depicting radiotransparent spaces inside the holotype of <em>Qianodus</em> (IVPP V26641). Colour coded features: purple, primary teeth; yellow, accessory teeth; white, spongiose tissue of the whorl base; pink, compact tissue of the whorl base. Rendering generated in Mimics 19.0.
<strong>Supplementary Data 3.</strong> Tomographic slices from a synchrotron X-ray tomography analysis of the <em>Qianodus</em> holotype specimen (IVPP V26641). Dataset generated in Mimics 19.0.
<strong>Supplementary Data 4.</strong> Tomographic slices from a synchrotron X-ray tomography analysis of a <em>Qianodus</em> specimen IVPP V26645. Dataset generated in Mimics 19.0.
<strong>Supplementary Data 5.</strong> Tomographic slices from an X-ray tomography analysis of a <em>Qianodus</em> specimen IVPP V26647. Dataset generated in Mimics 19.0.
 <strong>Supplementary Data 6.</strong> Parsimony analysis files. Character-taxon matrix (.tnt and .nex), most parsimonious trees (.tre), consensus trees (.tre). Likelihood and parsimony values for the 50 percent majority-rule consensus tree (.xlxs). TNT log file (.rtf). R script (.rtf) used in the calculation of the time-scaled 50 percent majority-rule consensus tree.