870 



CAMBRIAN BRACHIOPODA. 



Umbonal muscle scar, sho\\Ti in figure 374 



Umbonal slopes, defined 296 



undosa, see Mkromitra (Paterina). 

 unguiculata, see Siplionotreia. 



" Vngula ovala," mentioned 3S3, 444 



XJngulite grit (Upper Cambrian), in generalized section lor Russia, 



listing species and localities 143 



locaUtiesin 336h, 336o, 336p, 336q 



Union County, Tennessee, locality in 11a 



United States Geological Survey, acknowledgments 13 



unxia, see Syntrophia. 



upis, see LinguleUa. 



uplandica, see Acrolreta. 



uplandica limoeJisis, see Acrotreta. 



Upper Cambrian, Alabama, generalized section, listing included 



and correlated species and localities 147 



Alberta, fossil horizons correlated with those of British 



Columbia : 125-126 



British Columbia, detailed section, listing species and lo- 

 calities - 125-126 



British Columbia, upper boundary extended 125 



CapeBreton, generalized section, listing species and locahties. 131 

 Denmarli:, generalized section, listlug included and correlated 



species and localities 145 



England, generalized section, listing species and localities- 135-136 



fa mili es listed 112 



Finland, generalized section, listing included and correlated 



species and localities 145 



genera listed 110-111, 317 



Georgia, generalized section, listing included and correlated 



species and localities 147 



Missouri, generalized section, listing species and localities. . . 137 



Nevada, detailed section, listing species and localities 139 



New Brunswick, species and localities in, correlated with 



those of Cape Breton 131 



Newfoundland, detailed section, listing species and locali- 

 ties - 140 



Norway, generalized section, listing included and correlated 



species and localities 145 



Oldahoma, detailed section, listing species and localities 142 



Russia, generalized section, listing species and localities.. . 143-144 

 Scotland, generalized section, listing species and localities. 135-136 



species listed 98-109 



Sweden, generalized section, listing included and correlated 



species and localities 145 



Tennessee, generalized section, listing included and 'corre- 

 lated species and localities 147 



Utah, detailed section, listing included and correlated spe- 

 cies and localities 148-149, 153-154 



Wales, generalized section, listing species and localities 135-136 



Upper Ffestiniog group, in generalized section for England, Scot- 

 land, and Wales, listing species and localities 135 



Upper Leitches Creek, Cape Breton, localities near Sd, 



lOe-h, 10m, 372, 372a 

 Upper LingvXa flags, in generalized section for England, Scotland, 



and Wales, listing species and localities 135 



Upper "Linsmschicht," in generalized section for Russia 143 



urania, see Linnarssonella. 



Utah, Blacksmith Fork section, in detail, listing included .and cor- 

 related species and localities 148-153 



Cambriain species of, listed 114r-119 



detailed sections of Cambrian and Ordovioian in, listing 



included and correlated species and localities 148-158 



House Range section, in detail, listing included and corre- 

 lated species and localities 153-158 



localities in 3c-e, 



3s, 3t, 3w-y, 4, 7w, 8g, 81, 8k, lOy, lOz, lln-q, Us, llu, 

 llw-y, 14t, 14v, 15b-d, 15p, 15x, 3Da, 30c, 30d, 30e, 30e, 30h, 

 30j-(i, 30s, 30u, 30wr, 30y, 30z, 31c-e, 31h, 31 1-n, 31q, 31s, 

 31t, 31v, 31y, 31z, 32c-k, 32n-p, 32t, 32x-z, 33d, 33f, 331, 

 33j, 33 1, 33n, 33r, 33t, 34g, 341, 34m, 34u, 34q-v, 54a-r, 54y, 

 56e, 55h, 55n, 55t, 55u, 105t, 105x, 185z, 329, 329a-e 



Utah County, Utah, locaUty in 7w 



utaliensis, see Ifkromitra {Paterina) lahradorica, Nisusia (James- 



dla), and Otusia. 

 Ute limestone (Middle Cambrian), in detailed section in Black- 

 smith Fork, Utah, listing included and correlated species 



and localities 150-152 



localities in 31c-e, 



31z, 32e, 32p, 54a, 54 1-p, 54y, 55c, 55e, 55t, 59f , 59g, 163 



Ute Peak, Cache County, Utah, locality near 329a 



See also Paradise Dry Canyon and Blaolfsmith Fork. 



Veekkero, Norway, locaUty at 323g 



"Vaginatenkalk" (Ordovician), in generalized section for Russia, 



listing species and localities 143 



localities in 336z, 337, 337a-c, 337f, 337g 



"Vaginatmn limestone" (Passage beds), localities in 396ii, 396p 



VaginoceTas limestone, equivalent to the OrtJioceratUe limestone. . 628 

 in generalized section for Russia,listingspeciesandlocalities- 143 



Valatie Kill, Rensselaer County, New York, locality on 44a 



Valbom, see Monte de Valbom. 



Valcalda Spring, Esmeralda County, Nevada, locality near Iv 



Valley Creek bridge, Bessemer, .Alabama, locality near 56u 



Van Ness quarry, Lodi, Wisconsin, locality at 86 



Vanuxem, L., bibliographic reference 24 



variant, see Orbkuloidea. 



Vascular canals, shOAvn in figure 374 



Vascular markings, discussed 311-312 



Vascular (pallial) sinuses, defined •- 296 



variation in position of, in Obolus and LinguleUa, and their 



subgenera 376-377 



Vassar College, near Poughkeepsie, New York, locality near. ..... 367e 



Vastergotland, see Skaraborg, Wermland, etc. 

 vatkina, see Nisusia. 

 Ventlinge, see Wentlinge. 



Ventral valve, defined 296 



explanation of absence in collections of Trematobolus 617 



vermilionensis, sec Oholella. 



Vermilion Pass, Alberta, locality in .' 60b 



Vermont, Cambrian species of, listed 114-119 



locaUtiesin 16ii, 25, 25a, 26, 28, 28a, 87, 



227, 319e-g, 319j, 319k, 319m, 319q-s, 319v-z, 392o, 392p 



note on stratigraphic position of localities in 159 



vermontana, see Huenella. 



de Vemeuil, E. P., bibliographic reference 24 



de Vemeuil, E. P., and Barrande, J., bibliographic reference 24 



Vernon, Utah, localities on stage road west of lis, 32h, 32t, 32z, 33f 



verrucosa, see Siphonotreta, ^ 



Vestergotland, see Skaraborg, Wermland, etc. 



Vestfossen, Norway , localities at 323f , 3231i, 323n 



Villa Boim, Portugal, locality near 351 



villaboimemis, see Acrotliele. 



Vinala, Sweden, locality at 320t 



Viola, see Swansea (Viola). 



Virginia, Cambrian species of, listed 114-119 



localities in 47a, 47c, 47h, 92b, 331 



note on stratigraphic position of localities in 159 



Visceral area, defined 296 



Visceral cavity, defined 296 



Vistula River, Poland , locahties on 368, 368a, 386e 



Volborth, A. von, bibliographic reference 24 



genus named for 366 



species named for 419 



volborlhi, see Obolus. 



Volborthia, described 365 



classification of 321,322 



evolution discussed .' 318 



evolution of 317 



false cardinal area mentioned .' 318 



general geographic and stratigraphic distribution of 



the species referred to 99 



number of Ordovician species and varieties ot 113 



number of species of, in diflierent types of sediment. . 160 



surface ornamentation discussed 301 



type species "A crotreia recurva " 366 



recurva, described 366 



general geographic and stratigraphic distribution 



tabulated 99 



pedicle opening in, discussed and figiued 366 



type specimen figured PI. I, figs. 6, 6a-e 



Volkhof ( Wolchow) River, St. Petersbiu-g, Russia, localities on . . 336k, 

 336r, 336x, 337j, 337k, 396k 



Vrana, Sweden, locality at 320v 



Waagen, W., bibliographic references 24 



Wabasha Coimty, Minnesota, locahties tn 97, 



97x, S97x, 99, 131, 339c, 339f, 539h 



Wades Gap, Alabama, locahty near 139a 



Wahlenberg, G., bibliographic reference 24 



Wahwah Mountains, Utah, localities in 34r, 34t 



Waliwah Spring, Utah, localities near 34r, 34t 



