APPENDIX 1.
Comparison of reconstructions of Dunkleosteus terrelli in Engelman (2023b) (A) and the present study (B). Appendices combined in one zipped file that is available to download.
APPENDIX 2.
Appendix of specimens examined in this study. Appendices combined in one zipped file that is available to download.
APPENDIX 3.
Supplementary analyses and calculations. Data for this section can be found in Appendix 4 and Appendix 5. Appendices combined in one zipped file that is available to download.
APPENDIX 4.
Dataset of 2722 specimens and 913 taxa used to examine proportional prepectoral length, pectoral fin base size, pre-pelvic length, and snout-vent length in fishes. References cited in this documenfift can be found in Appendix 5. Appendices combined in one zipped file that is available to download.
APPENDIX 5.
Literature cited for references in the supplementary information. Appendices combined in one zipped file that is available to download.
APPENDIX 6.
Caudal fin and body armor measurements of specimens of Coccosteus cuspidatus compared to the proportions in Miles and Westoll (1968), and armor proportions of complete arthrodires relative to total length. Appendices combined in one zipped file that is available to download.
APPENDIX 7.
Length-height ratios of various reconstructed arthrodire thoracic armors. Length represents greatest anteroposterior length, height represents greatest dorsoventral height. Appendices combined in one zipped file that is available to download.
APPENDIX 8.
Coccosteus cuspidatus (A) and Dunkleosteus terrelli (B), both scaled to the same head length with A digitally altered to the same trunk height as B, showing how the primary difference in armor shape between these taxa is in dorsoventral height. Appendices combined in one zipped file that is available to download.
APPENDIX 9.
Cross-sectional body shape in fishes, measured as body depth/body width. Modified from supplementary figure 7.5 in Engelman (2023b); data is unchanged from that study except fixing a lapsus where body depth and width were reversed in Rhynchobatus mononoke. Low outlier for Dunkleosteus is CMNH 7424, whereas the high outlier in “Other Arthrodires” is Eastmanosteus calliaspis. Data is reported as observational averages to minimize deviation from prior study. Appendices combined in one zipped file that is available to download.
APPENDIX 10.
Proportions of the head shield and pectoral fenestra of Dunkleosteus terrelli. Appendices combined in one zipped file that is available to download.
