INDEX 



Pages on which species or genera are discussed are in bold-face type. Synonyms are in italics. 



affinis (Merycoidodon), 4, 5, 11, 13, 15, 16, 17, 19, 



46-47; fig'd, 313; meas., 280 

 ajfmis (Oreodofi) = Merycoidodon affinis, 46 

 Agate, Nebr., 14, 15, 154, 191, 209, 212, 232 

 Age at death, 55, 56, 57, 64, 71, 83, 84, 273 

 agrestis (Diplotremus), 23 



Acriochcerus, 23, 32, 34, 37, 39, 41,61, 63, 89, 91, 92, 

 93, 94, 95, 96 



antiquus dakotensis, 26 

 major, 61 



pumilus = Protoreodon pumilus, 37 

 Agriotherium = Protoreodon, 18, 26, 31, 33, 35, 36 



■paradoxicum = Protoreodon paradoxicus, 35 

 alpha (Bathygenys), 5, 10, 13, 18, 41-42; fig'd, 42; meas., 



279 

 altiramis (Merycochcerus) = Pronomotherium altiramus, 

 161 



(Pronomotherium) r= P. altiramus, 161 

 dtiramus (Merycochcerus) = Pronomotherium altiramus, 



161 

 altiramus (Pronomotherium), 5, 11, 13, 20, 161-164, 165, 



168, 169, 170, 204; fig'd, 27, 162, 163; meas., 286 

 Ameghino, F., 23 



American Horse Creek, So. Dak., 16, 78 

 anceps {Limnenetes) = Oreonetes anceps, 43 

 anceps (Oreonetes), 4, 11, 13, 20, 42, 43; fig'd, 26, 313, 



315; meas., 279 

 annectens (Protylopus), 39 

 Anoplotherium, 51, 52, 91 

 Apache Canyon, Calif., 13, 14, 153 

 Archc-eomeryx, 24 



arenarum (Merychyus), 5, 10, 16, 19, 217-218, 219, 222, 

 226, 228, 232; fig'd, 218, 375; meas., 290 



leptorhynchus (Merychyus), 5, 10, 16, 19, 217, 

 218-219, 220, 221, 222, 231; fig'd, 375; meas., 

 290 

 minimus (Merychyus), 5, 10, 1 5, 19, 178, 216, 217, 

 218, 219-222, 224, 231, 234; fig'd, 28, 220, 

 377; meas., 290; skel., 221 

 Argentina, 23 

 Associated fauna:, 7, 8, 9 

 auritus (Eucrotaphus), 61 

 Avinoff, A., 2 



Bannack, Mont., 13, 14, 187, 189 



bannackensis (Ticholeptus), 5, 12, 13, 21, 187-188, 189, 



194; fig'd, 187, 365; meas., 287; skel., 188 

 Barbour, E. H., 3, 210, 21 1, 230 

 Barbour, T., 2 

 Barstow, Calif., 13, 14, 152 

 Barstow formation, 4, 5, 152, 153 

 Bathygenys, 10, 18, 25, 26, 31, 41, 42; meas., 279 



alpha, 5, 10, 13, 18, 41-42; fig'd, 42; meas., 279 



Bear Creek Mt., Wyo., 17, 98, 122 

 Bear Creek, Nebr., 15, 235 

 Big Bottom, Ore., 15, 64, 66 

 g Hole River, Mont., 13, 14, 43 

 g Round Top, Mont., 164 

 Big Spring Canyon, So. Dak., 21 1 

 Black, D., 259, 262,267 

 Blue Creek, Nebr., 1 5 

 Bolk, L., 261 



Bone Coulee, Saskatchewan, 13, 14 

 Bos, 50,259, 261 



Boulder River, Mont., 13, 14, 174, 188 

 Brachycrus = Ticholeptus, 186, 187, 196 



rusticus r= Ticholeptus rusticus, 194, 196 

 brachymelis (Ticholeptus), 5, 12, 13, 21, 187, 188-189, 

 191, 193, 194, 197, 207; fig'd, 189, 369; meas., 287; 

 skel., 189 

 Brachymeryx = Cyclopidius, 18, 241, 254 



jeliceps = Cyclopidius simus, 249, 254 

 Brain casts, 259-268 

 Cyclopidius, 266 

 Eporeodon, 263; fig'd, 263, 411 

 Merycochcerus, 266; fig'd, 266, 269 

 Merycoidodon, 260 

 Mesoreodon, 265 



Promerycochoerus, 265; fig'd, 411 

 Protoreodon, 259 

 breviceps (Hyomeryx), 4, 10, 16, 18, 40-41; fig'd, 40; 

 meas., 279 



(Ticholeptus), 5, 12, 15, 21, 187, 188, 189, 190- 

 191, 194, 197; fig'd, 190, 367; meas., 287; skel., 

 191 

 brevifacies (Cyclopidius) = ? C. simus, 15, 18, 242, 245, 

 251-252 ; fig'd, 25 1 ; meas., 291 



(Pithecistes) = ? Cyclopidius simus, 249, 251 

 Bridge Creek, Ore., 14, 16, 64, 66, 70, 72, 81, 83, 96, 



97, 112, 128, 132, 134, 141 

 Brown's Park formation, 4, 5 

 Bruce, A. T., 262 

 Brule formation 



Lower, 5, 8, 46, 47, 54, 55, 58, 59, 63, 65, 68, 80 

 Upper, 4, 5, 8, 61, 68, 74, 77, 78, 86, 235, 238, 

 239 

 Bullse, inflation of, 26-28 

 bullatus (Eporeodon), 5, 10, 15, 16, 18, 26, 54, 63, 64, 



65-66, 75, 81; fig'd, 29, 65, 66; meas., 281 

 bullatus (Merycoidodon) = Eporeodon bullatus, 65 



(Oreodon) = Eporeodon bullatus, 26, 62, 63, 65 

 Bump, B., 46 

 Burke, J. J., 2 



buwaldi (Merycochoerus), 5, 10, 13, 19, 152-153, 157, 

 160; fig'd, 153; meas., 286 



