Index 



Snake River formation, Nebraska, 192. 

 Snow Valley Peak, 114; area, 156. 

 Soldier Meadows, 22. 

 Solen sicarius, 71. 

 Spatula clypeata, 82. 

 Sphenophalos, 196, 216, 221, 287, 288, 

 289, 290, 291, 298, 301, 302, 303. 



nevadanus, 192, 211, 213, 214, 285, 

 286, 287, 288, 289, 298, 299. 

 Spitzbergen, Triassic, 317. 

 Spurr, ,1. B., 378, 382. 

 Standella calif ornica, 71. 



falcata, 71. 



nasuta, 68. 

 Stanton, T. W., 171. 

 Steganopodes, 82. 

 Sterna elegans, 82. 



forsteri, 82. 

 Sternberg, 79. 

 Stewartville, 176. 



Stone, in geologic formations of Sar- 

 gent 's oil field, 78. 



Storms, W. H., 349, 368, 382, 383. 



Stratigraphic and Faunal Relations 

 of the Martinez Formation to 

 the Chico and Tejon North of 

 Mount Diablo, 171. 



Streams, in the Carson topographic 

 area, consequent, 121; longitud- 

 inal, 121. 



Strepsiceros, 299. 



Striges, 83. 



Suidae, 272, 275. 



Suilline, large, indeterminate, 230. 



Suman, John R., 167, 334. 



Summit zone, of Sierra Nevada, geo- 



morphic feature, 108. 

 Summits and plateau, significance of 



as geomorphic features of Sierra 



Nevada, 111. 

 Superjacent series, 92; andesite, 100; 



basalt, 102; other rocks, 102; 



pitchstone, 100; relative age, 102; 



rhyolite, 100; river gravels, 97; 



volcanics, 99. 

 Surcula, 174. 

 Swarth, H. S., 395. 

 Tahoe, Lake, 90. 



Tahoe City, gabbro found southwest 

 of, 99. 



Tahoe moat, 91, 113. 



Tapes, 68. 



conradiana, 174. 

 quadrata, 173. 



Tayassu, 273. 



Taylor, Walter P., 191. 



Tejon formation, 174; basal conglom- 

 erate, 175; relation to of Mar- 

 tinez formation, 174. 



Teleoceras, 211, 212, 214, 216, 267. 

 Tcllina, 176. 



congesta, 64. 



horni, 173. 



mathewsoni, 172, 176. 

 undulifera, 173, 175, 176. 

 Temblor beds, 62. 



Tephrocyon, 205, 207, 209, 213, 214, 

 215, 216, 235, 236, 238, 239, 240, 

 241, 243, 244, 245. 

 kelloggi, 205, 214, 215, 235, opp. 

 236, 238, 239. 



near kelloggi, 211, 213, 214, 

 215, 238. 

 rurestris, 236, 238, 239, 241. 



compare rurestris, 205, 209, 214, 

 239, 240, 243. 

 Teratornis, 2, 18. 



merriami, 18. 

 Teredo, 173. 



Terraces, Carson River, 138; west of 

 Reno, 160. 



Tertiary extrusives, 91. 



Tertiary Mammal Beds of Virgin 

 Valley and Thousand Creek in 

 Northwestern Nevada, Part I, 

 Geologic History, 21; Part II, 

 Vertebrate Fauna, 199. 



Tertiary River, 149; gravels, 133. 



Thinohyus, 205, 206, 214, 273, 275. 



Thousand Creek, Nevada, 22. 



Thousand Creek beds, 43, 192; age of, 

 49; fauna, 47, 210, 212; age of 

 fauna, 218; ungulata of, 211, 214, 

 257. 



Thousand Creek Flats, 43. 

 Thrasaetus, 312. 



harpya, 306, 312, 313. 

 Titanite, 94. 

 Tragelaphus, 299. 

 Tragoceras, 303. 

 Tresus nuttpli, 68, 71. 

 Triassic, Middle, West Humboldt 



Range, Nevada, 319, 330. 

 Trococyathus zitteli, 173, 175. 

 Trocosmilia striata, 174. 

 Trogontherium, 402. 

 Truckee sediments, 378. 

 Truckee River, 159. 

 Truckee Valley, 113. 

 Turner, 378. 



Turritella infragranulata, 174, 176. 

 yachecoensis, 174, 177. 

 uvasana, 174. 

 Tympanuchus palidicinctus, 83. 

 Ungulata of Thousand Creek beds, 

 211, 214, 257; of Virgin Valley 

 beds, 205, 214, 257. 



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