1 Academic Affairs, School of Medicine and Public Health, UW-Madison, Madison WI, 53706, USA. Electronic address: setraynor@wisc.edu.
2 Department of Anatomy, School of Osteopathic Medicine, Campbell University, Buies Creek, NC, 27506, USA; Evolutionary Studies Institute and Centre for Excellence in Palaeosciences, University of the Witwatersrand, Private Bag 3, Wits 2050, South Africa.
3 Department of Anthropology, UW-Madison, Madison, WI, 53706, USA; Evolutionary Studies Institute and Centre for Excellence in Palaeosciences, University of the Witwatersrand, Private Bag 3, Wits 2050, South Africa.