CLASSIFICATION OP THE THERIODONTIA. 



95 



long narrow girder which in the Theriorlonts extends from the 

 basipterygoid processes to the flanges of the pterygoids, and it is 

 therefore probable that the Dioynodonts separated from the 

 Theriodonts before the establishment of this feature — that is, at 

 about the same time as the Deinocephalia. At the same time, in 



Text-figure 29. 



Palate of Endotliiodim ? microps Broom. 



Drawn from R. 404-A, B.M.N.H.; the quadrates, quadrato-jugals andjugals, 

 and quadrate rami of the pterygoids, from other material. 



the Dicynodonts as in the Deinocephalia and all other S. African 

 Anomodontia in which the facts are known, the descending 

 flanges of the pterygoids lie well in advance of the basipterygoid 

 processes, a position which is markedly different from that found 



