Lull, The Armored Dinosaur Stegosaurus ungulaUis etc. 



673 



II. S k e 1 e t o n. 



The mount is a combination of two animals which consti- 

 tuted the cotypes of the species in the original description, ani- 

 mals of nearly equal size in one of which mainly the anterior 

 portion, in the other the posterior part was preserved so that 





L^L ml VHPI ■ H- 1 



r\J Xr 1 1 



■ 



1 



Fig. 1. The skeleton — oblique front view. 



the two Supplement each other almost perfectly, there being but 

 few duplicate bones. A small percentage of the animal had to 

 be restored in plaster, the missing bones being modeled either 

 from their fellows on the opposite side or from another very com- 

 plete though smaller specimen known in the museum as "Stego- 

 saurus Y." 



Some of the most notable anatomical features are the re- 

 markable proportions of the animal with the sharply arched 

 vertebral column, short neck, small head, lank, narrow body, 

 and extremely long posterior limbs. The tail which did not droop 

 abruptly as in all previous restorations was evidently held high 



VIII. Internationaler Zoologen- Kongreß. 43 



