INDEX 



627 



Mcrycochocrus zone, 287 ; Ticholeptus 

 zone, 293 ; Hipparion zone, 2!)7, 298 ; 

 Snake Creek, 355 ; Virgin V^alley, 357 ; 

 555.* 



Parahyus, 127, 549.* 



Paramylodon, Aol ; Equus zone, 454 ; Hay 

 Springs, 45G ; Rancho la Brea, 473 ; 

 541.* 



Para my a, 



Wasatch, 128 ; Wind River, 134 ; 

 Washakie, 165 ; Uinta, 168 ; 534.* 



Pararctotherium, 530.* 



Paratapirus, 



Stampian, 190 ; Aquitanian, 198 ; 556. 



Paratylopus, 231. 



Parictops, 520.* 



Paris basin, 



lagoons and gypse, 140, 141 ; calcaire 

 grassier, 143, 144. 



Patriofelis, 



Wind River, 131, 133 ; outline restora- 

 tion, 162 ; Bridgcr, 164 ; skeleton and 

 restoration, 165 ; 527.* 



Pawnee Buttes, 



correlation, 41, 277 ; (photograph) 290. 



Pawnee Creek deposit, 288, 289. 



Peace Creek formation, 366, 367, 368 ; 

 alternation of shell-bearing and mam- 

 mal-bearing layers, 337 ; commingling 

 of faunas, 453. 



Peale, 



volcanic ash in Bozeman Lake deposit, 

 90. 



Pediomys, 515.* 



Pelecydon, 541.* 



PeUcphilus, 542.* 



Pelycictis, 469. 



Pelycodiis, 134, 543.* 



Penck, 



duration of Quaternary, 64, 385 ; divi- 

 sions of the Quaternary in Switzerland, 

 376, 377, 378, (table) 379 ; differs from 

 Boule on correlation, 380, 404, 410 ; 

 Dryopithecus as an eolith-maker, 384 ; 

 origin of loess, 386 ; temperature of 

 Glacial Period, 388 ; alternation of 

 faunas in Pleistocene, 388, 389 ; age of 

 Schweizersbild cave, 425 ; correlation of 

 Solutriaii, 427. 



Pentacodon, 519.* 



Peorian Interglacial, 444, 446. 



Peraceras, 348 ; 



zone, 348, 349, 350 ; superciliosus, 352 ; 

 557.* 



Perathrrium, 



Wind River, 133 ; Ludian, 146 ; Bridger, 

 154, 161 ; Lower White River, 213, 216 ; 

 Oroodon zone, 221 ; 516.* 



Perchcerus, 



Oreodon zone, 220, 223 ; John Day, 231. 



Perim Island deposit and fauna, 274, 324. 



Perimys, .540.* 



Periptychida;, 110, HI, 546.* 



Periptychus, 107, 546.* 



Perissodactyla, 



Holarctic origin, 68, 202 ; growing 

 importance in Upper Eocene, 147 ; 

 granil epoch of, 156 ; evolution in North 

 America, charted, 174 ; of Old and New 

 World.s share many families in Oligo- 

 cene, 179 ; reduced to four families, 230; 

 evolution in North America charted, 

 239. 



Pernatherium, 143, 558.* 



Perrier, 



hipparion fauna, 316, 317 ; L'pper 

 Pliocene fauna, 319. 



Peterson, 



entelodonts, 217, 218 ; Thinohyus, 232 ; 

 Dcemonclix, 235 ; exploration of Agate 

 Spring Quarry, 235 ; Lower Miocene of 

 Great Plains, 285. 



Phacochwrus, 433, 549.* 



Pharsophorus, 516.* 



Phascolonus, 518.* 



Phascolotheriu7n, 515.* 



PhenacocoBlus , 



Promerycochcerus zone, 233 ; outline 

 restoration, 236 ; 550.* 



Phenacodontidae, 



Torrejon, 110, 111 ; extinction, 138, 172 ; 

 546.* 



Phenacodus, 



considered stem form of ungulates, 7, 

 125; Landenian, 100; Wasatch, 119; 

 124, 125 ; skeleton and restoration, 

 126 ; Wind River, 132 ; causes of ex- 

 tinction, 172 ; brain figured, 173 ; 546.* 



Philotrox, 230. 



Phiomys, 201, 534.* 



Phlaocyon, 288, 529.* 



Phocidse, 



Pliocene, 317, 321 ; 533.* 



Pholidota, 68, 71, 547.* 



Phosphorites, 58 ; 



Quercy, 151 ; Pleistocene, 386. 



Physodon, 562.* 



Pikermi deposit, 267, 268 ; Wallace on, 08 ; 

 correlation, 266. 



Pilgrim, 



Bugti hills Suidffi, 275. 



Pipestone Creek deposit, 212, 216, 217, 281. 



Pithecanthropus, 384, 385, 545.* 



Plagiaulacidie, 



Thanotian, 103; Torrejon, 111; Wa- 

 satch times, 119, 124; 518.* 



Plagiaulax, .518 ;* 



evolution of molars marks lapse of 

 time, 45. 



Plagiolophus, 



Ludian, 146, 147 ; Sannoisian, 188 ; 555.* 



Plaisancian stage, 311, 312, 313 ; 



correlation, 41, 309 ; palieogeography, 

 .305, (map) 312; localities (map). 310; 

 fauna summarized, 310, 311. 



Planops, 541.* 



Platygonus, 



Rattlesnake, 358 ; Blanco, 364 ; Equus 



* Reference to classification. 



