LIFK 



495 



generalized types, but later became more specialized, and widely 

 divergent. While some were small and delicate in structure, others 

 were gigantic and ungainly. Carnivorous forms only (Theropoda) 



Fig. 418. Oudeiwdon trigoniceps; an anomodont (or dicynodont) from the 

 Karroo of South Africa, similar to forms of the Trias in Wyoming. (After Broom.) 



are known in the Trias, and most of them were not especially large. 

 Their general form is indicated by the partially restored skeleton 

 shown in Fig. 419. The strength of the hind parts, the relative 



Fig. 419. A Triassic dinosaur of the Connecticut Valley, Anchisaurus colurus; 

 restored by Marsh; 1/30 natural size. 



