Fig. 2 in Crania of Tyrannosaurus and Allosaurus

Fig. 2. Tyrannosaurus rex. Superior view of skull, Amer. Mus. No. 5027. Key to Plate II. Abbreviations as in preceding figures. sup. fen., superior temporal fenestra. lat. fen., lateral temporal fenestra. 'La.,' adlachrymal of Gaupp. P. o., postorbital + postfrontal. 'Pr.fr.,' lachrymal of Gaupp, prefrontal of authors.