Trigonias, Leptaceratlierium, Caenopus, Konzotherium. 625 
Subfam. 3. f Diceratheriinae. 
1185. f Trigonias, Lucas, 1900. 
Lucas, Proc. U. S. Nat. Mus., 1900, XXIII, p. 221. 
6539. f osborni, Lucas, 1. c., 1900, p. 221, pl. i — 4; fOligocaen. Dakota 
Osborn, Science, 1900, p. 7 67, f. 1 ; Hatcber, merid. 
Anu. Caruegie Mus., 1901, p. 135. 
1186. f Leptaceratlierium, Osborn, 1898. 
Acerathenum , p., Osb. et Wort., 1894. 
Osborn, Mera. Amer. Mus., 1898, p. 182. 
6540. ftrigonodum, Osb. et Wortm. — - (4654, fOligocaen. Dakota- 
4654 ) ; Osborn, Mera. Ara. Mus., 1898, merid. 
p. 113, 115, 132, f. 25, 26, 35, 44, pl. 12, 
13, 49. 
1187. f Caenopus, Cope, 1880; Osborn, 1900. 
Acerathenum, p., Cope, 1874. 
Cope, Amer. Natur., 1880, p. 611. 
6541. f mitis, Cope — (4656)- Osborn, Mera. 
Am. Mus., 1898, p. 89, 136, f. 8, 36, 37, 39. 
pumilus, p., Cope, 1886 — (4658). 
6542. 4 occidentalis, Leidy — (4651); Osborn, 
1. c., 1898, p. 90—150, f. 9. 21, 33-35; 
pl. 13, 16, 19. 
6543. f tridactylus, Osborn — (4653); id., 1. c., 
1898, p. 84—158, f. 4—49, pl. 17, 19, 20. 
proavitum, Hatcber — (4691). 
6544. f simplicidens. Cope — (4657); Osborn, 
1. c., 1898, p. 145, f. 43. 
6545. f copei, Osborn — (4657 B ) ; 1. c.,p.l 13 — 146, 
f. 25 — 44, pl. 15. 
mite, p., Osb. et Wortm., 1894 (nec 
Cope). 
fOligocaen. Dakota, 
Canada. 
fOligocaen. Dakota, 
Nebraska, Colorado,- 
Canada. 
fOligocaen. Dakota 
Sept. et Merid. 
f Oligocaen.Nebraska. 
fOligocaen. Dakota. 
1188. f Ronzotherium, Aymard, 1856; Osborn, 1900. 
Aceratherium, p., Auct., et Trt., 1898. 
Aymard, Congris Scient, de France pour 1855 (1856), p. 233, 256. 
6546. f velaunum. Aymard — (4663); Osborn, fOligocaen. infer. 
Bull. Amer. Mus., 1900, p. 234, 235, f. 3, 4. Gallia. 
