Morphological models found to best reflect bite force within each phenotypic form and sex.

All variables were size-corrected prior to analysis. ß, Beta coefficient; R2, coefficient of determination; P, significance value; CHL, casque head length, CHH, casque head height; CH, casque height; HL, head length; HW, head width; HH, head height; LJL, lower jaw length; CT, coronoid process of mandible to snout tip; QT, posterior surface of quadrate to snout tip.