214 



osborn: OLIGOCENE, MIOCENE, pliocene equid.e. 



INDEX. 



Alphabetical List of Oligocene, Miocene, and Pliocene species of Equid.e with Present and Original Generic 

 Reference, see under species, below. 



Bibliography, see under the various species, and p. 2 

 Dental morphology, pp. 3-7 

 Dental terminology, pp. 3-7 

 Faunal horizons, pp. 8-33 



Tables, pp. 37, 52, 69, 75, 99, 128, 147, 174, 204 



Genera, 



Altippus, see Parahippus 

 Anchippus, see Parahippus 



Anchitherium, see Mesohippus, Miohippus, Kalobatippus, Parahippus, Hypohippus 



Archseohippus, pp. 204, 211-213 



Equus, see Protohippus, Pliohippus, Hipparion 



Hipparion, pp. 173-202 



Hippidium, see Pliohippus 



Hippodon, see Protohippus 



Hippotherium, see Merychippus, Protohippus, Hipparion 

 Hypohippus, pp. 204-210 

 Kalobatippus, pp. 69-74 

 Merychippus, pp. 98-126 

 Mesohippus, pp. 36-50 

 Miohippus, pp. 51-68 

 Neohipparion, see Hipparion 

 Parahippus, pp. 75-97 

 Pliohippus, pp. 146-172 

 Protohippus, pp. 127-145 

 Stylonus, see Merychippus. 

 Generic Tables, pp. 37, 52, 69, 75, 99, 128, 147, 174, 204 



Geographic location of Equid^e horizons, pp. 8-34, 37, 69, 75, 99, 128, 147, 174, 204 

 Geologic horizons, history and location of, pp. 8-33 



" " Tables, Equidte species in geologic succession, pp. 37, 52, 69, 75, 99, 128, 147, 174, 204 



" distribution of principle Equid^s species, key to, p. 34 

 Indices, p. 3 



Life zones, see above under Faunal horizons 

 Morphology of the teeth, under respective species, and pp. 3-7 

 " " " limbs, " " " " pp. 3-7 



" " " cranium and skeleton, under respective species, and pp. 3-7 



Species, alphabetical list of Oligocene, Mio- 

 cene, and Pliocene species of Equidae, 

 with Present and Original Generic 

 Reference 





Present Generic Ref. 



Original Generic Ref. 



acutidens Sinclair 1905, 



Miohippus 



(Mesohippus), pp. 52, 64-65. 



affine Leidy 1869, 



Hipparion 



(Hipparion), pp. 174, 178-179. 



affinis Leidy 1858, 



Hypohippus 



(Anchitherium (Hypohippus) affinis), pp. 204, 207-208 



agatensis Osborn sp. nov. 



Kalobatippus 



pp. 69, 71-73 



agrestis Leidy 1873, 



Parahippus 



(Anchitherium agreste), pp. 75, 86-87 



anceps Marsh 1874, 



Miohippus 



(Anchitherium), pp. 52, 58 



annectens Marsh 1874, 



Miohippus 



(Miohippus), pp. 52, 63-64 



anthonyi Merriam 1916, 



Hipparion 



(Hipparion), pp. 174, 189 



assiniboiensis Lambe 1905, 



Mesohippus 



(Mesohippus), pp. 37, 41 



atavus, see pawniensis 







australis Leidy 1873, 



Parahippus 



(Anchitherium (?) australe), pp. 75, 85 



avus Marsh 1874, 



Parahippus 



(Protohippus), pp. 75, 87-89 



bairdii Leidy 1850, 



Mesohippus 



(Palaeotherium, Anchitherium), pp. 37, 45-46 



brachylophus Cope 1878, 



Miohippus 



(Anchitherium), pp. 52, 60 



brachystylus Osborn 1904, 



Miohippus 



(Mesohippus), pp. 52, 54 



