INDEX. 



231 



Page. 



Tcxtularia folium Parker andJoiies, description of 90-91 



plate showing 108 



missitsippiciisis, description of 90, 125-126 



plate showing 108 



suhha uerii Cushnaan, description of 89-90, 126 



piate showing 108 



tumidulum, description of 89, 125 



plate showing 109 



Thickness of strata, graphic computation of, alinement chart lor.. 44-46 



graphic computation of, data needed for 40 



geometric construction for 40-41 



trigonometric formula for 41 



graphic representation of 41-43 



mathematical anal>'sis of 43-44 



Toroweap Canyon, Ariz., section iii 69-70 



Triangle, right, graphic solution of 48-50 



right, gra[)hic solution of, preparation and use of chart for 49-50 



graphic solution of, aUnement chart for 50 



Tricalycites papyraccas HolUck, description of 179 



papyraceus, plate showing 181 



TTiloculina oblanga { Montagu) D'Orbigny, description of 104-105 



oblonga, plate showing 122 



peroblonga CiLshman, n. sp., description of 143 



plate showing 151 



rotunda D'Orbigny, description of 104 



sculpturaia Cusiiman, n. sp., description of 143 



plate showing 150 



trigonula (Lamarck) D'Orbigny, description of 105 



Trochodendroides Berry, n. gen., description of 166 



rhomboidetis (Lesquereux) Berry, description of. 166-167 



plate showing 181 



Truncaiulina a mericana Cushman, description of 97 



americana, plate showing 114 



var., description of 136 



byrameTisis Cushman, n. sp., description of 96-97, 136 



plate showing 1 14 



lobatula (Walker and Jacob) D'Orbigny, description of. . 96, 135-136 



plate showing 114 



pseudouTigeriana Cushman n. sp., description of 97, 136 



plate showing 114 



vicksburgeiisis Cushman, n. sp., description of 136-137 



plate showing 152 



U. 



Utah, southwestern. See Wasliington County, Utah. 



Uvigerina byraimnsis, Cushman, n. sp., descriptions of 95, 133-134 



byramensii, plate showing 112 



pigmea D'Orbigny, description of 134 



plate showing 149 



V. 



Vaginulina legumen (Linnaeus) D'Orbigny var. elegam (D'Or- 

 bigny) Fomasini, description of 93,131 



Page. 

 VaginuliTia legumen ( Linnaeus) D'Orbigny var. elegans (D'Orbigny) 



Fornasini, plate showing iu 



V'aughan, T. W., fossils determined by 82 



Verneui'ina spinulosa Reuss var. glabrata Castunan, a. var., de- 

 scription of 92 



rtfrfimarjfo Cushman, n.sp., description of 127 



plate showing i46 



VerUbralina advena Cushman, n. sp., description of 102 



advena, plate showing U9 



sp., descrii)tion of i02 



plate showing UQ 



sp., descrij)tion of 140 



Viburnum robustum L/esquereux, description of 179 



robustum, plate showing 181 



Vicksburg, Miss., exposures of Byram marl near 80-81 



fossils found near 81, 83-85 



V^icksburg beds, early paleontologic work on 79 



Virgin City, Utah, sections west of 72-73 



Virgin Umestone member of the Moenkopi formation, fossils col- 

 lected from 67-68 



VirguHna sp., description of 92 



sp., plate shoning ii(j 



W. 



Washington County, Utah, age of the formations in 66-69 



features of 53-54 



fossils collected in 66-68 



general .section of 54-^ 



local sections iu 69-77 



stratigraphy of 54-66 



structure of '. 54 



Washington dome, Utah, section in 74 



White, David, acknowledgment to 22 



Widdringtonites reichii (Ettingshauseu) Heer, erroneous identifi- 

 cation of 209, 210 



W^olf Hole, Ari/.., section north of 75 



Woodbine, Tex., fossil plants collected at 153 



Woodbine sand, fauna of 155 



flora of, descriptions of 159-180 



distribution of, in other formations 159 



early collections of 153 



features of 155-156 



plates showing 181 



relations of, to that of other formations 156-15G 



naming of 154 



nature and distribution of 154-155 



Woodwards, Miss., exposure of B>Tam marl at 82 



Woolsoy Tank, Ariz., plate showing 189 



bank of wash near, plate showing 189 



Z. 



Zizyphus lamarensis Berry, description of 170 



laniaremis, plate showing 181 



