Measurements and calculations of mandibular bending strength for Anatoliadelphys maasae, Didelphodon vorax, Sarcophilus harrisii and Didelphis virginiana, based on the methods of Therrien [74], as modified for metatherians by Wilson et al. [75].

Values for Anatoliadelphys maasae are from this study; values for the other taxa are taken from Wilson et al. [75]. Ix = second moment of area about the labiolingual axis; Zx = bending strength in the dorsoventral plane; Iy = second moment of area about the dorsoventral axis; Zy = bending strength in the labiolingual plane.