A quick guide to distinguishing between the mandibles of tigers (i–iii) (AZ1065, AZ772, Ia157) and lions (iv–vi) (TM24004, AZ771, AZ566) using the ventral profile of the horizontal ramus.

<p>Specimens (i) and (iv) are male, specimens (ii) and (v) are female, whereas specimens (iii) and (vi) are of unknown (?) sex. Tiger mandibles are stable on a flat surface and rest on two contact points, namely the mandibular symphysis below the diastema and on the angular process. Lion mandibles naturally only rest on one contact point on flat surfaces, namely on the ventral margin of the mandible below the region of the molar; hence, due to their convex profile, they tend to rock back and forth. <b>*</b> = contact points of the mandibles on flat surfaces.