NODOSAUKUS TEXTILIS. 157 



This last-mentioned paper was followed in a few months by another" accompanying a 

 restoration of Stegosaurus, and in this it is clear that Marsh regards the group as deserving 

 the rank of a suborder only, coordinate with the Stegosauria. The two together he then 

 regarded as comprising the order Ornithopoda. Three years later, b however, Marsh restricted 

 the term Ornithopoda to its original limits and made the group coordinate with the Stegosauria 

 and Ceratopsia, all three of which he considered as suborders belonging to a single order for 

 which he proposed the very appropriate name Predentata. The following year c Professor 

 Marsh presents a revised classification of the Dinosauria, and in this he places the Nodosaurida? 

 and the genus Nodosaurus in the Stegosauria rather than the Ceratopsia. This is also the 

 classification followed in his "Dinosaurs of North America," d which may be regarded as 

 the most comprehensive expression of his views on this subject. It would seem, therefore, 

 that Professor Marsh's final decision was in favor of excluding Nodosaurus from the Ceratopsia 

 and including it in the Stegosauria. 



After a personal examination of the type I am convinced that it is not a member of the 

 Ceratopsia. 



[Hatcher's manuscript ends here.] 



a Am. Jour. Sei., 3d ser., vol. 42, Aug., 1891, pp. 179-181. c Am. Jour. Sci., 3d ser., vol. 50, Dec, 1895, pp. 485-498. 



i Am. Jour. Sci., 3d ser.. vol. 48, July. 1S94 pp. 89-90. d Sixteenth Ann. Rept. U. S. Geol. Survey, pt. 1, p. 243. 



