TYPE-SPECIMENS OF FOSSIL VERTEBRATES. 21 



114. Aceratherium occidentale (Leidy). Type. 



Leidy, Proc. Acad. Nat. Sci. Phila., 1851, p. 331. 



= Csenopus occiden talis. 

 See Rhinoceros occidentalis. 



523. .ffilurodon ferox Leidy. Type. 



Upper sectorial. Loup Fork (Upper Miocene). Niobrara 

 River, Nebraska. 



Leidy, Proc. Acad. Nat. Sci. Phila., 1858, p. 22; Journ. Acad. Nat. 

 Sci. Phila. (2), VII, 1869, pp. 68, 367, pi. 1, figs. 13, 14. 



=iElurodon saevus. 



127. jElurodon haydeni (Leidy). See Canis (Epicyon) haydeni. 



523. ^lurodon saevus (Leidy). See iElurodon ferox and Canis 



128. saevus. 



2040. iElurodon ursinus (Cope). See Canis ursinus. 



2137. Allacodon fortis Marsh. Type. 



Upper premolar. Laramie (Cretaceous). Wyoming. 

 Marsh, Amer. Journ. Sci. (3), XLHI, 1892, p. 255, pi. 7, fig. 4. 



2138. Allacodon pumilis Marsh. Type. 



Three upper teeth . Ceratops beds ( Cretaceous ) . Wyoming . 



Marsh, Amer. Journ. Sci. (3), XXXVIII, 1889, p. 179; XLHI, 1892, 

 p. 255, pi. 7, fig. 3. 



2144. Allacodon rarus Marsh. Type. 



Upper molar. Cretaceous. Wyoming. 



Marsh, Amer. Journ. Sci. (3), XLHI, 1892, p. 256, pi. 7, fig. 5. 



2679. Allodon fortis Marsh. Paratypes. 



2680. (1) Lower incisor; (2) left upper maxillary containing 



three premolars associated with fragments of skull. 

 Morrison (Jurassic). Como Bluffs, Wyoming. 



Marsh, Amer. Journ. Sci. (3), XXXIII, 1887, p. 331, pi. 7, (1) 

 figs. 14, 15; (2) figs. n-13. 



2681. Allodon laticeps Marsh. Plesiotypes. 



2682. (1) Upper jaw containing in 1 and three premolars; (2) left 



upper jaw with last premolar and two molars. Mor- 

 rison (Jurassic). Como, Wyoming. 



Marsh, Amer. Journ. Sci. (3), XXXIII, 1887, p. 331, pi. 7, (1) 

 figs. 5. 6; (2) figs. 3, 4. 



4289. Allops crassicornis Marsh. Type. 



Skull. White River (Oligocene). South Dakota. 



Marsh, Amer. Journ. Sci. (3), XLH, 1891, p. 268.— Osborn, Bull. 

 Amer. Mus. Nat. Hist., XVI, 1902, p. 102. 



=Titanotherium crassicornis. 



4251. Allops serotinus Marsh. Type. 



Skull. White River (Oligocene). Bad Lands, South 

 Dakota. 



Marsh, Amer. Journ. Sci. (3), XXXIV, 1887, p. 331. — Osborn, 

 Bull. Amer. Mus. Nat. Hist., XVI, 1902, p. 102. 



= Titanotherium serotiuum. 



