1. Discipline of Anatomy and Pathology, School of Biomedicine, University of Adelaide, Adelaide, SA 5005, Australia
2. Biological Anthropology and Comparative Anatomy Research Unit, School of Biomedicine, University of Adelaide, Adelaide, SA 5005, Australia
3. Institute of Evolutionary Medicine, University of Zurich, 8006 Zurich, Switzerland
4. School of Dentistry, University of Adelaide, Adelaide, SA 5005, Australia
5. Institute of Dentistry, Queen Mary, University of London, London WC1E 7HU, UK