They also compared two male and two female I. araguaiaensis skulls with skull measurements from the other species and found small differences in the number and shape of certain teeth, and a slightly wider skull. (sciencemag.org)
Germonpré's 2009 assessment of the Goyet canid was largely based on the measurement of observable physical traits, such as the comparatively wide skull and snout, more doglike than wolfish. (discovermagazine.com)