64 



THE OSTEOLOGY OF THE REPTILES 



which all of these names have been given by different authors. The 

 more general opinion is that the posterior one of the Araeoscelis and 



Fig. 53. Parapsid, etc., skulls: A, B, Mycterosaurus (Theromorpha), from 

 the side and from above. Natural size. C, Araeoscelis (Protorosauria), 

 from above. Natural size. D, Pleurosaurus (Protorosauria), from 

 above. One half natural size. E, Sauranodon (Protorosauria), from 

 above. Natural size. 



Squamata arch is the supratemporal, the anterior and outer one the 

 squamosal; some, however, reverse these names, calling the posterior 



