"1) Posterior most mental foramen at ultimate premolar first molar junction or more posterior" "2) Labial mandibular foramen" "3) Condyloid crest absent" "4) Meckelian groove absent" "5) Coronoid facet absent" "6) Palatal process of premaxilla reaches nearly or to canine alveolus" "7) Glenoid fossa troughlike" "8) Lacrimal foramen exposed on face" "9) Wible et al. (2009) found the “medial course of the internal carotid artery” to be a synapomorphy of Metatheria, but O’Leary et al. (2013) found that none of the four osteological correlates that correspond to this interpretation of this feature optimizes as an unambiguous synapomorphy of Metatheria."