S I'NOPSLS. 



20y 



The remains of this specimen consist of \ m-ious portions of a skull. 

 The o-eological horizon is in the Dinoceras beds of the Middle Eocene. 

 The known remains of this species are in the Museum at Yale College. 



Tiiioceras sjjileatiim, Cope. sp. 



Woodcuts: IS:j arid 184, below. 



KiG. IS). Fui. 183. 



■f^'^^PQ-t.. 



i4^!^ 



\ftA 



Figure 183. — VisaK nt Tmuinns / </ ,t „, (.ilier Cope); o. side view; h. toji view. 

 Figure 184. — 1 osteiioi biiilace of same skull. 



Both figures are one-eighih natural size. 



These ti-^iires were photograjjhed on ^\((o(l from the lithographic plate, 

 cited below. 



Cope (Eobasileus galeatus). — Hayden's Report U. S. Geological Survey for 1S'?S, 



pp. 4.3(i, 4.".7, Pbite I, 1S74. 

 Proceedings of the American Pliilo. ojihical Society, Vol. XIV, p. 17, 1874. 

 (Loxolophodon galeatus.) — Havden's Rejiort I/. S. GeoJofjical Survey for 1873, 



Plate I, 1874. 

 Osborn, Memoir upon Loxolophodon and Uintalherinm, pp. 21, 22, 1881. 



The specimen upon which this species was based was obtained by 

 Prof. E. D. Cope, in 187."'), in the liad Lands of South Bitter Creek, 

 Wvoming. 



The remains consist of various portions of the skull. 



The geological horizon is in the Hridger beds of the Middle Eocene. 



The known remains are preserved iu Prof. Cope's collection. 



27 



