Megaeerops, Allops, Symborodon. 
621 
•6489. f dispar, Marsh — (4617)-, Osborn, 1. c., 
1902, p. 98; Hatcher, Ann. Carnegie Mus., 
I, 1901, p. 256, f. p. 257; 1902, p. 347, 
pl. 16 — 18. 
validus (Brontops), Marsh, 1891. 
6490. f avus. Marsh — (459$); Osborn, 1. c., 
1902, p. 99. 
6491. f Coloradensis, Leidy — (4605); Osborn, 
1. c., 1902, p. 99. 
arnericanum , p., Cope (nec Leidy). 
6492. f angustigenis, Cope — (4602); Osborn, 
1. c., 1902, p. 99. 
syceras, Cope — (4619 parti). 
6493. f selwynianus, Cope — (4603); Osborn, 
1. c., 1902, p. 99. 
6494. f bicornutus, Osborn, 1. c., 1902, p. 99. 
100, fig. 5. 
6495. f tichoceras, Scott et Osb. - — (4612); 
Osborn. 1. c., 1902, p. 99. 
6496. f marshi, Osborn, 1. c., 1902, p. 100, 101, 
fig- 6. 
trigonoceras, p., Osborn, 1. c., 1896, 
p. 181, fig. 5. 
6497. f robustus, Marsh — (4616); Osborn, 1. c., 
1902, p. 101. 
f.Oligocaen. med. 
Dakota. 
fOligocaen. Dakota. 
fOligocaen. Dakota. 
» 
f Oligocaen. Canada. 
» 
f Oligocaen. Canada. 
fOligocaen. med. 
Dakota. 
fOligocaen. Super. 
Dakota. 
fOligocaen. Super. 
Color ado. 
» 
fOligocaen. Super. 
Color ado, Nebraska. 
1172. f Allops, Marsh, 1887. 
? Diplodonus, Marsh, 1890. 
Marsh, Amer. Journ. Sc., 1887, 34, p. 331. 
6498 f serotinus. Marsh — (46 13 a); Osborn, fOligocaen. Super. 
Bull. Amer. Mus., 1902, p. 102. Dakota. 
6499. f crassicornis, Marsh, Ara. Journ. Sc., 1891, f Oligocaen. Super. 
42, p. 268; Osborn, 1. c., 1902, p. 102. Dakota. 
6500. f amplus. Marsh — (4614 part.); Osborn, fOligocaen Super. 
1. c., 1902, p. 102, f. 7 ( Diplodonus ). Dakota. 
1173. f Symborodon, Cope, 1873; Osborn, 1902. 
Anisacodon et Diconodon, Marsh, 1875 1876. 
Cope, Palceont. Bull. No 15, 1873, p. 2. 
6501. f torvus, Cope - (4615 part.); Osborn, fOligocaen Super. 
Bull. Amer. Mus., 1902, p. 103. Golorado. Dakota, 
Nebraska. 
