622 
Symborodon, Brontotherium, Daeodon. 
6502. f acer, Cope — (4619 exci, syn.: sy ceras) ; 
Osborn, 1. c., 1902, p. 103. 
altirodris, Cope, 1874. 
6503. y montanus, Marsh — (4614 exci, syn.); 
Osborn, 1. c., 1902. p. 103, 104, fig. 8. 
: ) 
f Oligocaen. Super. 
Colorado, Nebraska, 
Dakota, Canada. 
f Oligocaen. Med. et 
Super. Dakota. 
1174. f Brontotherium, Marsh, 1873 
Titanops , Marsh, 1887. 
Marsh, Amer. Journ. Sc., 1873, V, 
6504. -f leidyi, Osborn, Bull. Amer. Mus., 1902, 
p. 105, fig. 9, 10, 12, 13. 
varians (Menops), Marsh, Am. J. Sc., 
1887, p. 328, fig. 
6505. fiiypoceras, Cope — (4610 part.); Osborn, 
1. c., 1902, p. 106, f. 11, 12, 13. 
6506. f bucco. Cope — (4615); Osborn, 1. c., 
1902, p. 107. 
6507. ygigas. Marsh, Am. Journ. Sc., 1873, 
p. 486 — (4611); Osborn, 1. c., 1902, 
p. 107. 
datus, Marsh — (46 14 a). 
6508. y dolichoceras, Scott et Osb. — (4613, 
exci, syn.: serotinus); Osborn, 1. c., 1902, 
p. 107.' 
; Osb., 1902. 
p. 486. 
f Oligocaen. infer. 
Dakota. 
f Oligocaen. med. 
Colorado. 
f Oligocaen. Super. 
Colorado. 
f Oligocaen. Super. 
Colorado, Dakota. 
f Oligocaen. Super. 
Dakota. 
medius (Titanops), Marsh, Am. J. S., 
1891, 42, p. 269. 
6509. y curtum, Marsh — (4621 parti); Osborn, 
1. c., 1902, p. 107. 
peltoceras , Cope — (4608). 
6510. f ramosum, Osborn — (4620); Osborn, 
1. c., 1902, p. 108. 
6511. f platyceras, Scott et Osb. — (4621, exci, 
syn.: curtum). 
2 ) 
» 
f Oligocaen. Sup. 
Colorado, Dakota. 
» 
f Oligocaen. Sup. 
Dakota. 
f Oligocaen. Sup. 
Dakota. 
1175. f Daeodon, Cope, 1879. 
Titanotherium , p., 'Zittel, 1893. 
Cope, Proc. Amer. Phil. Soc., 1880, p. 77. 
6512. y shoshonensis, Cope — (4601). fMiocaen. Oregon. 
>) Quid?: 
eaen. Colorado. 
2 ) Quid?: 
— f (Symborodon) liypoceras, Cope — (4610 part.); — -j-Oligo- 
-fMiobasileus ophryas, Cope — (4618); — J Oligocaen. Colorado. 
