Fig 12. Pseudotherium argentinus, right lateral view of skull showing the postorbital in Pseudotherium.
(Left) Right postorbital highlighted in magenta. (Right) Cross section through orbital region illustrating how a sliver of frontal is wedged between dorsal parietal sand ventral postorbitals. Dotted line indicates position of cross sectional slice. Abbreviations: fr, frontal; par, parietal; po, postorbital.