Figure 8. Left postorbital of Acrocanthosaurus atokensis (NCSM 14345).
Postorbital in (A) lateral and (B) medial views. f, frontal contact; fo, foramina; iop, intraorbital process of postorbital; j, jugal contact; l, lacrimal contact; ls, laterosphenoid contact; ltf, lateral temporal fenestra; o, orbit; ob, orbital boss of postorbital; p, parietal contact; pf, prefrontal contact; sq, squamosal contact; vg, vascular groove.