//ew Jersey- O^gdcevie, f 



INDEX 



625 



Neohipparion, 350, 351 ; 



skeleton and restoration, 243 ; Madison 

 Valley, 281 ; whitneyi, discovery of, 

 298 ; Snake Creek, 355, 356 ; two spe- 

 cies from Rattlesnake formation, 358 ; 

 Blanco, 365 ; 556.* 



Neolith, R()l)rnhausian, figured, 382. 



Neolithic period, 42cS, 429 ; 



transition to and from, 380 ; estimated 

 length in years, 385. 



Neoplagiaulax, 



Cernaysian, 103 ; zone of Puerco. 106 ; 

 Torrejon and Fort Union, 108 ; 518.* 



Neoreomys, 539.* 



Neotoma, 477, 538.* 



Neotragocerns, 337, 355 ; 



zone, 353, 354, 355, (photograph) 355 ; 

 553.* 



Nesodon. 560.* 



Nesokerodon, 539.* 



Neumayr, 



temperature of Ice Age in Europe, 388. 



Neiirogymnurus, 520.* 



Newton, 



Red and Norwich Crag, 321 ; Forest 

 Bed mammals, 393, 394. 



Nimravus, 230, 532.* 



NORDENSKl'uLD, 



Steller's sea cow, 494. 



Norfolk Interglacial, 391-399. 



North-American-Asiatic land connection, 

 see Asiatic-American land connection. 



North and South American land connection, 

 93, 292, 339. 



North Polar theory, 65, 66. 



Norwich crag fauna, 318, 321. 



Notharctidie, 



Wind River, 134 ; Bridger, 161, 164 ; 

 543.* 



Notharctus, 



resembles Orohippus in grinding teeth, 

 3 ; Wind River, 130. 134 ; outline resto- 

 ration, 162 ; Bridger and Washakie, 164 ; 

 543.* 



Nothocyon, 



John Day, 230 ; Promerycochoerus 

 zone, 236 ; 528.* 



Nothrotherium, 541.* 



Notopithecus, 543.* 



Notoprotogonia, 546.* 



Notostylops, 560 * ; zone, 97. 



Nototherium, 518.* 



NtJESCH, 



Kesslcrloch cave, 425, 426. 

 Nummulitic limestones of Europe, 83. 

 Nyctilestes, 521.* 

 Ny dither ium, 521.* 



Ocala fauna, 348. 

 Ocapia, 



figured, 270; 551.* 

 Ochotona, 534.* 

 Odobcenus, 



southward migration in Pleistocene, 



* Reference to 

 2s 



449, 487 ; Alaskan Pleistocene, 489, 

 490; 533.* 



Odocoiteus, 



in Alachua Clays (?), 348; of Mcga- 

 lonyx fauna, 465, 466 ; Port Kennedy 

 Cave, 469 ; Washtucna Lake, 474 ; 

 Potter Creek Cave, 477 ; Big Bone 

 Lick, 478; The Conard Fissure, 488 

 553.* 



CEningen deposit, 257, 258, 263. 



Ogallala formation, 298, 353, 354, 355 ; 



correlation, 277 ; overlaid by Pleisto- 

 cene. 461. 



Olhodotcs, 522.* 



Oldham, 



geology of Indian Tertiaries, 273, 323, 

 324, 325, 326. 



Oligobunis, 



John Day, 230 ; Merycochoerus zone, 

 288; 530.* 



Olivola deposit, 318. 



Olsen, 



discovery of Bathyopsis skull, 132. 



Omomys, 54.3.* 



Onohippidion, 556.* 



Onychodcctes, 540.* 



Oodectes, 131, 134, 528.* 



d'Orbigny, 



on geologic time divisions, 41. 



ream n OS, 



figured, 437 ; arrival in North America, 

 438, 466, 476; affinities, 483, 484; 

 Alaska, 490 ; 554.* 



Oreas, 328, 432, 554.* 



Oreodon, 220 ; 



outline restoration, 215 ; zone, 219, 

 220, 221, 222, 223, (photographs) 210, 

 217, 226, 228, 290 ; 549.* 



Oreodontidae, 



first appearance, 138 ; ancestry, 149 ; 

 Uinta, 170 ; lower White River, 214, 

 215 ; of Oreodon zone, 220, 221, 222 ; 

 John Day, 231 ; Promerycocha-rus 

 zone, 236 ; Merycochoerus zone, 286 ; 

 Ticholeptus zone, 293 ; decline in Hip- 

 parion zone, 299, 300 ; last (Snake 

 Creek), 355 ; extinction, 363 ; 549.* 



Oreonagor, 432. 



Oreopitliecufi, 



Vindobonian, 255, 263 ; 545.* 



rOrlcanais, sables de, 246, 250, 251. 



Orohippus, 



evolution, 45 ; zone, 48, 49, 139, 161, 

 162 ; Bridger, 161, 164 ; outline restora- 

 tion, 162 ; 555.* 



Oromeryx, 170, 550.* 



Orsma^l, deposit and fauna, 100. 



Ortmann, 



on history of Antarctica theory, 76 ; 

 von Ihering's hj'pothesis of Tertiary 

 water barrier in Amazon region, 339. 



Orycteropus, 



source, 264 ; Pontian, 270 ; 543.* 



Oryx, 432. 554.* 



classification. * 



