ACKNOWLEDGEMENTS
The authors would like to acknowledge and thank the staff of the museums involved in this project for allowing specimens to be examined. We would also like to extend our thanks to all researchers who produced literature on the Mygalomorphae (see Wilson et al., 2022a for a full list of the publications used to construct the morphological dataset), without which this study would not have been possible. Finally, we would like to thank the various photographers who allowed us to use their images of mygalomorph taxa and burrows (see figure captions for relevant photographers). This work was supported by the Australian Biological Resources Study Taxonomy Research Grants Scheme (ABRS Grant Numbers RG18-03, 4-H3KOGBR).