742 
Titanotherium. 
4610. fingens, Marsh, Amer. Journ. Sc., 1874, 
p. 81 ; 1876, p. 245 ; 1876, p. 336, pl. 1—6 ; 
Osborn, Bull. Amer. Mus., 1896, p. 182, 
pl. 3. 
? hypoceras, Cope, Ann. Eep. Geol. Surv., 
1874, p. 491; Osb., 1. c., 1896, p. 183. 
4611. f Pgigas, Marsh, Amer. Journ. Sc., IX, 
1876, p.339, pl. 5. 
4612. f tichoceras, Scott et Osb.,Bull.Mus. Comp. 
ZooL, XII, 1887, p. 159; Cope, Amer. 
Natur., 1887, p. 1063; Osb., Bull. Am. 
Mus., 1896, p. 184, pl. 3. 
4613. f dolichoceras, Scott et Osb., Bull. Mus. 
Comp. ZooL, XII, 1887. p. 158; Cope, Am. 
Nat. 1887, p. 1063; Osb., Bull. Am. Mus., 
1896, p. 185, pl. 4. 
a. — serotinws, Marsh (Allops), Am. Journ. 
Sc., 1887, p. 331; Osb., Bull. Am. Mus., 
1896, p. 192 ? dolichoceras, faem.). 
4614. tmontanum, Marsh, Amer. Journ. Sc., IX, 
1875, p. 246; XI, 1876, p. 339; Osb. Bull. 
Am. Mus., 1896, p. 183. 
a. — elatum, Marsh, Am. Journ., 1887, p. 
331, tig. 12; Osborn, 1. c., 1896, pl. 4, 
etfig. 9, 10,11,12. 
amplum, Marsh, Amer. Journ., XXXIX, 
1890, p. 523 (faemin,, fide Osborn, 1, c., 
p. 193.) 
4616. f bucco. Cope, Ann.Kep. Geol. Surv., 1874, 
p. 486, pl. 2, 3, 4, 8; Amer. Nat, 1887, 
p. 1063, pl. 23, 24; Osborn, Bull. Am. Mus., 
1896, p. 179. 
torvum. Cope, 1. C.. 1874, p. 491; 
Osborn, 1. c., 1876, p. 176, pl. 3. 
4616. f robustum, Marsh, Amer. Journ. Sc., 1887, 
p. 326; Osb. et Wortm., Bull. Am. Mus., 
1895, p. 346, fig. 1 et 3, pl. 8 et 9; Osborn, 
BuU. Am. Mus., 1896, p. 187, fig. 8. 
4617. f dispar, Marsh, Amer. Journ., 1887, p. 327, 
329; Osb., Bull. Am. Mus., 1876, p. 188. 
fMiocaen. med. 
Colorado. 
Mioeaeu. Colorado. 
f Miocaen. Colorado. 
fMiocaen. med. 
Dakota merid. 
fMiocaen. Dakota 
merid. 
Dakota merid. 
fMiocaen. super. 
Colorado. 
Dakota. 
Dakota merid. 
f Miocaen. Colorado. 
fMiocaen. super. 
Colorado. 
f Miocaen. 
Dakota merid. 
