Index 



Tafi, J. A., acknowledgment of as- 

 sistance, 367 ; cited on Tejon 

 group, Cantua District, 422. 



Talus, formation of, in rainless 

 regions, 24; profile of, a perma- 

 nent feature of mountain fronts, 

 25. 



Tehachapi Mountains, Kimella sim- 

 plex zone, present in, 463. 



Tehama County, California, relation- 

 ship of launa of, with Horse- 

 town fauna, 150. 



Tejon areas, columnar sections of, 

 456; description: Marysville 

 Buttes, Oroville, lone, Lower 

 Lake, 457; Coalinga district, 

 459; Mount Diablo, type local- 

 ity, Santa Ana mountains, 459; 

 Rose Canon, 460. 



Tejon Eocene of California, contact 

 with Agasoma gravidum beds, 

 12; literature cited, 368, 369, 

 370, footnotes; correlation, his- 

 torical, 475; species common to 

 Gulf and Pacific provinces, 476; 

 species Venericardia planicosta 

 Lamarck, stages of evolution of, 

 477 ; generic comparison of Mid- 

 way and Tejon faunas, 478; pro- 

 posed correlation, 479; new 

 species, description of, 481-503. 



Tejon Eocene of California, Strati- 

 graphy and Fauna of, 363. 



Tejon fauna of California, summary, 

 442, list of species reported, 

 443-453; relation of Tejon to 

 Martinez fauna, 455, to San 

 Lorenzo Oligocene, 454; sum- 

 mary of stratigraphy, 455. 



Tejon Hills, California, figure of 

 type specimen from, 52. 



Tejon Sea, geography of, 467; maps 

 showing probable extent of dur- 

 ing certain depositional periods, 

 469, 470, 472. 



Tejon strata between Domengine 

 and Cantua creeks, list of 

 species collected from, 430-434. 



Tejon, The, in California, four faunal 

 zones of, 366; map showing 

 Tejon and associated groups 

 south of Mount Diablo, 370; 

 localities of. in Coalinga quad- 

 rangle, 429; near Lower Lake, 

 441; in Santa Ana Mountains, 

 441. 



Group south of Mount Diablo, 

 stratigraphy of, 371; figure of 

 section showing strata and asso- 

 ciated rocks, 372; list of species 

 collected from, 372 insert; fauna 

 of, Turbinolia zone, 373; Eimella 

 simplex zone, 374, 376; Balnno- 

 phyllia variabilis zone, 375, 378. 



Group north of Mount Diablo, 

 stratigraphy, 382; fauna, 384. 



Group near Fort Tejon, strati- 

 graphy, 418; fauna, 418; map 

 showing type locality, 419; list 

 of species, 420. 



Group, Cantua district, Coalinga 

 quadrangle, 422; historical, 422; 

 stratigraphy, 424; list of species 

 from, 425; summary of conclu- 

 sions, 435; white sandstone mem- 

 ber, fauna of, 428; white shales, 

 435. 



Group in San Diego County, 435; 

 stratigraphic notes, 436; fauna, 

 437, 439; list of fossils in, 437; 

 description of Tejon Eocene lo- 

 cation in, 440; conclusions, 440. 

 Group near Domengine Ranch, 

 Coalinga Quadrangle, figures of 

 section showing strata of, 425; 

 fauna of white sandstone mem- 

 ber, 428,; white shales, 435. 

 Tellina jollaensis, 487; figure of, opp. 

 506. 



Tellina, ooides zone, 142, 145, 150, 

 154, 159. 



Tertiary provinces in the United 

 States west of the Wasatch 

 Range, outline map of, opp. 162. 



Tephrocyon, figure of, 174. 

 kelloggi, figures of, 174. 



Tertiary gravels in the Sierra Ne- 

 vada, schematic representation 

 of four principal epochs of, 412. 



Tertiary Vertebrate Fauna from the 

 Cedar Mountain Range of West- 

 ern Nevada, 161. 



Tebrabelodon, sp., 189; figures of, 

 189. 



Texas Flat, California, type locality 



of Lower Chico, 139. 

 Texas Springs, California, Chico 



fauna locality, 152. 

 Thamnasteria sinuata, 68; figures of, 



opp. 74. 



Tivela packardi, 486; figures of, 



opp. 508. 

 trigonalis, 207; figure of, opp. 210. 

 Topila, Mexico, Gulf Coast, Tejon 



Species from listed by Dumble, 



477. 



Trabuco Canon, California, 140. 



Trabueo formation, 140; conglomer- 

 ate character of, 155. 



Transitional Oligocene-Miocene, 10. 



Triassic, basement complex in Santa 

 Ana Mountains of Triassic age, 

 139. 



Trichinopoli group of Southern India, 

 157. 



Trigonoarea, 143. 



Trbehoeyathus imperialis, 63; figures 

 of, opp. 72. 



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