210 



DTNOCERATA. 



Tiiioceras graiide, Marsh. 



Woodcuts: 20, p. 21; 49, \>. 44; 84, S5, 86, p. 71; 81, 88, p. 75; and 185, below. 



Figure 185. — Nasals of Tiiwceras grande, Marsh (No. 1040). 

 a. side view ; l. top view ; c. Iront view. 



Oiie-fiflli natunil size. 



Marsh, American Journal of Science, Vol. I\', ]>. :i2:i, October, 1872; Vol. V, pp. 295, 

 311, April, 1873. 

 American Naturalist, Vol. VII, \>. 217, ,\pril, 1873. 



Proceedings of the American Philosophical Society, Vol. XIII, p. 256, 1873. 

 Fifth Annual Report of the U. S. Geological Survey, (figures from the present volume, 

 viz:) fig. 55, p. 264; 86, p. 280 ; 1 13, 114, 115, 1 18, 119, p. 295, 1884. 

 Cope, Proceedings of the American Philosophical Society, Vol. XIII, pp. 54, 61, 1873. 

 (Loxolophodon cornutus). — Hayden's Report IT. S. Geological Survey for 

 1872, p. 575, 1873. 



The type specimen (number 1040) of this species was collected at 

 Barrel Springs, about seventy-five miles east of Green River, Wyoming, 

 in 1872, by Messrs. J. W. Chevi^ and K. D. Smith. 



The remains of this specimen consist of portions of the skull, and 

 cervical vertebra. 



The geological horizon of this sijecies is in the Middle Eocene, in the 

 Dinoceras beds. 



The known remains are preserved in Yale College Museum. 



Tinoceras liians, Marsh. 



Woodcuts: 32, p. 30; and 186, below. 

 Fig. ISO. 



Figure 186. — Nasals of Tinoceras Mans, Marsh (No, 1499), 

 a. side ^^ew; b. top view; c. front view. 



One-tifth uatunil size. 



