230 



INDEX. 



Page. 



Polymnrphina hyramensh Cushman, n. sp.. description of 94, 131 



plate showing HI 



cuspidata H. B. Brady, description of 133 



plate showing 1^7 



vaT.coi>tulata Cushman, n. var 133 



plate showing 1^8 



equalis D'Orbigny, descriiition of 132 



plate showing I'^S 



gibba D' Orbigny, description of 93-94, 132 



plate showing HI 



fistulose form, description of ^* 



plate showing 112 



problrmti D'Orbigny ?, description of 94-95, 131-132 



plate showing 112 



regiTia H . B . Brady, Parker, and Jones, description of 94, 131 



plate showing 112, 147 



spinosa iW Orhi^n J ) Egger, description of 133 



plate showing 148 



vicksburgensis Cushman, n. sp., description of 133 



plate showing I'lS 



Populus harkeriana Lesqaereux, description of 163 



Pulvinulina advena Cushman, n.sp., description of 99 



adiena, plate showing 116 



ftyramrnsw Cushman, n.sp., description of 99,138 



plate showing 116 



glabrata Cushman, n. sp., description of 99, 138 



plate showing 116 



Q- 



QuiTiqiielocitlina bicostata D'Orbigny, description of 141 



bicostata D'Orbigny var., description of. ., 102 



var., plate showing 120 



contorta D'Orbigny, description of 142 



plate showing 151 



cookei Cushman, n. sp., description of 141 



plate showing 150 



crassa D'Orbigny ?, description of 102 



plate showing 121 



cuvieriana D' Orbigny, description of 102, 141 



plate showing 120 



glabrata Cushman, n. sp., description of * 141 



plate showing 151 



lamarrkiana D'Orbigny, description of 142-143 



lustra Cushman, n. sp., description of 141-142 



plate showing 150 



seminulum (Linnaeus ) D'Orbigny, description of 142 



iesseilata Cushman, u. sp., description of 142 



plate showing 150,151 



venusta Karrer ?, var., description of 102-103 



plate showing 120 



vicksburgensis Cushman, n.sp., description of 141 



plate showing 151 



vulgaris D' Orbigny, description of 142 



plate showing 149 



sp., description of 103 



plate showing 120 



R. 



Red Bluff clay, fossils found in 82, 83-85 



Red wall limestone, features of, in Utah and Arizona 56-57 



Reeside, John B., jr., and Bassler, Harvey, Stratigraphic sections 



in southwestern Utah and northwestern Arizona 53-77 



Reeves, Frank, cited IS 



Rhamey Hill, Tex., fossil plants collected from 153 



Rhamjius tenai Lesquereux, description of 169-170 



tenai, plate showing 181 



Rhus redditiformis Berry, description of 169 



reddUiformis, plate showing 181 



Rhythm in movements of ancient seashores 201 



Rock Canyon Ariz., section at head of 70-71 



section at mouth of 71 



Rock Canyon conglomeratic member of the Moenkopi formation, 



fossils collected from 67 



Ross, Clyde P., Geology of the lower Gila region, Ariz 183-197 



Eotalia bi/ramen^is Cushman, n. sp., description of 99, 138 



byTamensis plate showing 117 



Page. 



Rotalia dentata Parker and Jones, description of 100 



plate showing 117 



var. parva Cushman, n. var., description of 139 



plate showing 152 



vicksburgeiisis Cushman, n.sp., description of 139 



plate showing 152 



Roxana Petroleum Corporation, acknowledgment to 22 



Rudd No. 1 well, location of 5-6 



log of, plate showing In pocket. 



section of, correlated with type section 15 



sections of, thicker than corresponding sections of Seaman 



weU 6,7,17 



S. 



Saddle Mountain, Ariz., plate showing 188 



St. George, Utah, sections north, east, and south of 73-75,76-77 



Salii deleia Lesquereux, description of 163 



ksguereuxii Berry, description of 162 



Sapindopsis bcl cider eiisis Berry, n. sp., description of 215-217 



belvidrnn.'iis, plate showing 225 



brevi/oUa Fontaine, description of 216 



plate showing 225 



•magni/oHn Fontaine, description of 214-215 



plate showing 225 



variabilis Fontaine, description of 213-214 



plate showing 225 



Sapindu^ morrisoni Heer, description of 168 



Sassafras mudgii Lesquereux, description of 219 



mudgii, plate showing 225 



Seaman No. 1 well, location of 5-6 



log of, comparison of synthetic log with 17-18 



plate showing In pocket. 



oil in 12 



sections of, thicker than corresponding sections of Rudd 



well 6, 7, 17 



Sequoia condita, Lesquereux, description of 209-211 



condita , plate showing 225 



gracillima Newberry, erroneous naming of 209-210 



Shinarump conglomerate, features of, in Utah and Arizona 62 



north of Virgin City, Utah, plate showing 67 



Siphonina advena CLishman, description of 98, 137 



advena, plate showing 116 



Smith's Mesa, Utah, section in 73 



view northward toward, plate showing 59 



Spirillina Umbata H. B. Brady var. bipunctata Cushman, n. var., 



description of 134-135 



Umbata var. bipunctata, plate showing 149 



subdecorata Cushman, n. sp., description of 95 



plate showuig 113 



Spiroloculina antHlarum D'Orbigny, description of 140 



antillarum, plate showing 150 



bip-amensis Cushman, n.sp., description of ." 101 



plate showing 119 



grateloupi D'Orbigny, description of 101 



plate showing 119 



imprimata Cushman, n. sp., description of 101-102, 140 



plate showing 119 



SterciLlia lugitbris Lesquereux?, description of 171 



lugubris, plate showing 1 181 



mucronata Lesquereux, description of 218 



towneri (Lesquereux) Berry, description of 217-218 



plate showing 225 



Stratigraphic units, use of term 5 



Strovibus costatus, plate showing 34 



Sulphide, conditions atlecting deposition of 4-5 



Supai formation, features of, in Utah and Arizona 57-58 



Synthetic log, description of 3 



T. 



Tertiary (?) sandstone, features of, in Utah 65 



Tertiary (?) and Quaternary rocks, features of, iu Utah and 



Arizona 66 



Texas, north-central, generah^ed log for lH-20 



generaUzed log for, plate showing In pocket. 



Teitularia agglutinam D'Orbigny, description of 89 



agglutiiians, plate showing 108 



