632 



AGE OF MAMMALS 



Smilodontopsis, 



Ovibos zone, 487 ; Conard Fissure, 488. 

 Smith, J. P., 



Tertiary physiography of western North 



Americk, 92, 93, 175, 282, 343, 443. 

 Snake Creek formation, 353, 354, 355 ; 



correlation, 341. 

 Soissons, argiles plastiques et lignites de, 102, 



114, 115. 

 Solhilac, 391, 392, 395. 



S0LL.\S, 



thickness of sedimentary deposits, 58, 

 59 ; duration of Caenozoic, 64 ; duration 

 of Pleistocene, 385. 



Solutre palaeolithic encampment, 427. 



Solutrian stage, 427 ; correlation, 378. 



Sorex, 259, 521.* 



South polar theory, 65. 



Spalacotherium, 515.* 



Spaniomys, 539.* 



Sparnacian stage, 114, 115; correlation, 42, 

 83, 99, 100, 114 ; map of localities, 102. 



Spermophilus, 



Pleistocene Europe, 407, 417; Potter 

 Creek Cave, 477 ; 535.* 



Sphenophalos, 338, 357, 554.* 



Spy Cave. 410. 



Squalodon, 251, 561.* 



Statzling deposits, 258, 263. 



Stampian stage, 190, 191, 192, 193 ; corre- 

 lation, 182 ; map of localities, 191 ; 

 Quercy, 151. 



Stegodon, 330, 331 ; 



Japan, 322 ; Java, 323 ; Siwaliks, 324, 

 326 ; type in America, 360, 364, 366 ; 

 558.* 



Stegotherium, 542.* 



Stehlin, 



Africa as an evolution center, 70, 71, 72 ; 

 separation of New and Old Worlds in 

 Middle Eocene, 137 ; Middle and Upper 

 Eocene fauna of Europe, 141 ; Dicho- 

 bunidse, 147 ; Eocene suillines and 

 anthracotheres, 148, 149 ; Oligocene 

 suillines, 198, 199 ; sables de I'Orleanais, 

 251 ; Miocene suillines, 253, 260 ; 

 ancestry of hippopotami, 313 ; hip- 

 parion fauna of Perrier, 317; and Harle, 

 Cajarc, 395, 396. 



Steinheim deposit, 261. 



Steiromys, 539.* 



Steneofiber, 



Stampian, 191 ; Aquitanian, 195, 198 ; 

 Upper Oligocene, North American, 224, 

 226; John Day, 228, 229; last appear- 

 ance, 233 ; 535.* 



Stenogale, 254, 530.* 



Stenomylus, 



Promerycochoerus zone, 234, 236; ciuarry 

 (photograph), 234 ; 550.* 



Stenoplesictis, 254, 530.* 



Stenotatus, 542.* 



Steppe fauna of Pleistocene, 388, 412; 

 (summarized) 414, 415, 416, 417, 



(Schweizers})ild) 418, (Kesslerloch) 426 ; 



horse of, 409, 412, 417 ; retreat of, 428. 

 Sternberg, 



herds of tortoises on Pliocene Great 



Plains, 342, 350 ; Long Island Quarry, 



349, 350. 

 Sternberg's elephant bed, 461, 463. 

 Sthenurus, 518.* 

 Stibarus, 547.* 

 Stichomys, 539.* 

 Stilotherium, 517.* 

 Strepsiceros, 



Siwaliks, 328 ; Pliocene distribution of 



antelopes allied to (map), 336, 337, 338 ; 



recent, figured, 338 ; 554.* 

 Strutt, 



on geologic time measured by helium 



content of rocks, 62, 63. 

 Studer, 



Brlittelen fauna, 255 ; crowding out of 



tundra fauna, 419 ; Kesslerloch horse, 426. 

 Stylinodoii, 



Wind River, 133 ; Bridger, 155 ; 540.* 

 Sub-Aftonian Glacial, 435, 445. 



SUESS, 



stability of North America during Caeno- 

 zoic, 84. 



Sues.sonian Sea, 114, 141. 



Suidffi. 



Ludian, 148; three phyla in European 

 Eocene, 148 ; Aquitanian, 197 ; phy- 

 logeny of Oligocene, 198, 199 ; Miocene, 

 253,260; 548.* 



Surra, 507. 



Sus, 



brain figured, 173 ; evolution of, 260 ; 

 Vindobonian, 262 ; Miocene of India, 

 275; of 'older Pliocene fauna,' 312, 

 316, 317 ; Sicilian, 321 ; Siwalik, 329 ; 

 mid-Pleistocene of Europe, 407; post- 

 Pleistocene of Europe, 428 ; Pleistocene 

 of North Africa, 433 ; 548.* 



Siissenborn deposit, 402, 403 ; 

 location, 391. 



Swift Current Creek deposit, 212 ; 

 location, 204 ; titanotheres, 214. 



Symborodon, 



restoration (head), 212; 556.* 



Symbos, 



Ovibos zone (Conard Fissure), 487, 488 ; 

 Alaska, 490 ; 554.* 



Synchronism, 39, 43, 44, 45, 46, ,47. 



Syndyoceras, 236 ; 



outline restoration (head), 236; skull 

 figured, 237 ; 551.* 



Synoplotherium, 527.* 



Systemodon, 127, 556.* 



Taeniodonta, 



Holarctic origin, 68 ; Puerco, 107 ; 

 Torrejon, 109, 111; Wasatch, 125; 

 Wind River, 132 ; last appearance, 

 Bridger, 155 ; evolution and extinction, 

 charted, 174 ; 540.* 



* Reference to classification. 



