48 



CALIFORNIA ACADEMY OK SCIENCES 



Fig. 1. Lateral view. 

 Fig. 2. Superior view. 



EXPLANATION OF PLATE VL 



ThaJdltoMmrvd olernndritr. 

 Reconstruction of the skull. 

 Ahnvt nne lidlf natiinil size. 



The temporal and fronto-parietal regions and a portion of the mandible are restored from 

 T. shnstensis. 



Legend. 



Pm, premaxillary 



M, maxillary 



iV, nasal 



F, frontal 



Pr, parietal 



Pn, pineal foramen 



Pf, prefrontal 



Pfo, post-fronto-orbital 



J, jugal 



L, lachrymal 



PI, palatine 



iS'c, sclerotic ring 



Sq, squamosal 



Q, (juadrate 



Ar, articular 



iS^rt, supra-angular 



.47), angular 



D, dentarv 



