Fig. 7 in Crania of Tyrannosaurus and Allosaurus

Fig. 7. Tyrannosaurus rex. Immature cranium with temporal arches removed, oblique view of left side. Amer. Mus. No. 5117. Scale 13/. ?P. sp., supposed presphenoid. Pa. sp., parasphenoid. ?, Marks supposed suture between ethmoid and presphenoid. Pr. f., prefrontal of authors (lachrymal of Gaupp). Pa. sp., parasphenoid. O. sp., orbitosphenoid (Gaupp), " alisphenoid " of authors. car. in., lower and upper entrance for internal carotid. fen. ov., fenestra ovalis (for stapes). i-vii, exits of cranial nerves i-vii