230 INDEX. 
Page. 
Polymorphina byramensis Cushman, u.sp., description of........ 94, 131 
PREC SOWIE oc cccienmrcaskavern cansgyeweus ui 
cuspidata H. B. Brady, description of 133 
plate showing 147 
var. costulata Cushman, u. var. - 133 
Plate: Showing = 2 occ bia/</ajai Satnenseniceiiabiierccncuunany 148 
equalis D’ Orbigny, description 21) CRE a AE Ae 132 
plateishowing: oS sccccesek see eeeeeeceecaes --- 148 
gibba D’ Orbigny, description of. 93-94, 132 
Plate SHOWING 3: eesios nos ce cecececeeceeeinie 111 
fistulose form, description of. 94 
plate showing..............- Sistah eauinsipccoresoeteicieianrasan 112 
problema D’ Orbigny ?, ee a of. 
plate ae is 
Pulvinulina advena Cushman, n. sp., description of...........---+ 99 
advena, plate showing............2-0--22----.20-- 
byramensis Cushman, u. sp., description of 
plate showing. <2.22.2¢cseneuhsneeeasecevce 
glabrata Cushman, u.sp., description Olsoesanseneetpediceits 
plate showing................2... Saisiieciale sane omaeisees 116 
Q. 
Quingqueloculina bicostata D’Orbigny, description of............-.- 141 
bicostata D’ Orbigny var., description of. - 102 
var., plate showing..........-.------------+-- - 120 
contorta D’ Orbigny, description of...............- - 14 
Plate Showin Se 2.5.5 3s 2a e mn ceisecesaaic ctaiente bound aS 151 
cookei Cushman, n. sp., description of............---222-+2.05 141 
plate showing - 150 
crassa D’ Orbigny ?, description of..............--.--2-------- 
plate SHOWING oeiissccwsecsascesvceunsneec senna detsees 
cuvieriana D’ Orbigny, description of.. 
plate showing... 
glabrata Cushman, n. sp., description of 
Pla be SHOWING = 2/6 5.c.n io icin cin.c cis orc ceisisiniciae sisidiowieetiomie'e cing He 
lamarckiana D’ Orbigny, description of................222--- 142-143 
lustra Cushman, u. sp., description of. af 141-142 
plate showing . 150 
seminulum (Linnaeus) D Orbigny, description Obseaisiecesacican 142 
tessellata Cushman, ni. sp., description of. -- 142 
plate showing 150, 151 
venusta Karrer ?, var., description of............--.... 102-103 
Plate SHOWING o.oo ccc cieciedcinieiencisminctsteeecisivceeesseeesiecsis 120 
vicksburgensis Cushman, n. sp., description of................. 141 
plate showing 151 
vulgaris D’ Orbigny, description of.........-.....-.+-. 142 
‘plate showing - 2 cocc0s ecese ee sewajsepentearescns 149 
Spy deschiptiod Of su. accucusenncenenesearmueusrereunee 103 
Plate SHOWING ...-... 22.000 eee e eee n cence eee eee e ence eeeee 120 
R. . 
Red Bluff clay, fossils found in.........--...------2---+e-e0ees 82, 83-85 
Redwall limestone, features of, in Utah and Arizona............. 56-57 |: 
Reeside, Jobn B., jr., and Bassler, Harvey, Stratigraphic sections 
in southwestern Utah and northwestern Arizona..... 53-77 
Reeves, Frank, cited ........------2-eeeeeeeeceee eee eee Saeomcees 18 
Rhamey Hill, Tex., fossil plants collected from 
Rhamnus tenaz Lesquereux, description of..............---- 
tenaz, plate showing.........-- 
Rhus redditiformis Berry, description o 
redditifor mis, plate showing. 
Rhythm in movements of ancient seashores...........-.-.-...2.- 
Rock Canyon Ariz., section at head of 
section at mouth of..-.......--.-.- . 
Rock Canyon conglomeratic member of the Moenkopi formation, 
fossils collected POM... up ssnaeeeie eens cesneenwenn 
Ross, Clyde P., Geology ofthe lower Gila region, Ariz. 
Rotalia byramensis Cushman, u. sp., description of.......... 
byramensis plate showing.... 
Page. 
Rotalia dentata Parker and Jones, description of........-.....---- 100 
Plate Showing’. w< <iaisecde eis caierepmincicheawalswiay tice seeineisistein 7 
var. parva Cushman, n. var., description of. . . . 139 
plate showing... 152 
vicksburgensis Cushman, n. sp., description of. . a 139 
Plate SHOWING =z. cedsend need ccoocsecmecaeiiceoncdcecaw 152 
Roxana Petroleum Corporation, acknowledgment to..........-- 22 
Rudd No. 1 well, location of. : ae 8 
log of, plate showing......... oan. pocket. 
section of, correlated with type section. ................----- 15 
sections of, thicker than corresponding sections of Seaman 
WOU ea eee iernerceieiare ees eeecn bem snene edt oeeen eee 6, 7,17 
8. 
Saddle Mountain, Ariz., plate showing. -.........-..2--.2--0--00+ 188 - 
St. George, Utah, sections north, east, and south of.... 73-75, 76-77 
Saliz deleta Lesquereux, description of.........--.----- ---- 163 
lesquereuxii Berry, description of......-....2..02.02eeee eens 162 
Sapindopsis belviderensis Berry, n. sp., description of. .......... 216-217 
belviderensis, plate showing ...........-------+---+ 
brevifolia Fontaine, description of. 
plate showing .022.c..cccandecae scmedececneteudsaedas Seen 
magnifolia Fontaine, description of-................. 214-215 
Plate Showing o-2.c00i estonia cianrdarcsincasnccreiaae sd 225 
variabilis Fontaine, description of........----....---- 213-214 
' plate showing «225 
Sapindus morrisoni Heer, description of. ........--..-.-.-...20--- 168 
Sassafras mudgii Lesquereux, description Ofe Sse ees 219 
mudgii, plate showing ....-..-.---. 60-00-0222 eee eee e eee e ee * 225 
Seaman No. 1 well, location of............2.......2-0-00000- Games 5-6 
log of, comparison of synthetic log with. . 
Plate showing. ....-.--...-.---- 
Sequoia condita, Lesquereux, description of................ 
; CONCIM, DIABLO SNOWING on csc nnd aspoanccnnunmunnegenanc aeaan 
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 Cushman, description of................... 98, 137 
advena, plate showing. -.....---......-2.000cee cece eee e neces 116 
Smith’s Mesa, Utah, section in............2222. 2000 0c cece e eee eee 73 
view northward toward, plate showing..................--... 59 
Spirillina limbata H. B. Brady var. bipwnctata Cushman, u. var., 
MOSCTIBIION OF nccccr ce cuunanieeesnaaeuvynoaiwese 
limbata var. bipunctata, platé showing--................ 
subdecorata Cushman, n. sp., description of............ 
plate showings... cas ocseosceceneeccawecsceen eae 
Spiroloculina antillarum D’ Orbigny, description of 
antillarum, plate showing. ..... 
byramensis Cushman, n. sp., description of. . .. Ses : 
PIR06 SNOW IE eee esieciss to nce aonaninsrnnndenes psidaniaibeyanstoe 
grateloupi D’ Orbigny, description of 
plate showing 
imprimata Cushman, u. sp., description of.............. 
plate showing..... Move saielacan awe sate 
Sterculia lugubris Lesquereux?, description of 
lugubris, plate showing 
mucronata Lesquereux, description (6) Signer oe 
towneri (Lesquereux) Berry, description of 
Plate SHOWING). icici nwciacincuvwecencieieaciace 
Stratigraphic units, use of term. . 
Strombus costatus, plate showing neg eaisseinee bi abet Socisidiaoeceseeeie 
Sulphide, conditions affecting deposition of............ 
Supai formation, features of, in Utah and Arizona 
Synthetic log, description of. 
Texas, north-central, generalized log for 
"generalized log for, plate showing............. 
Textularia agglutinans D’ Orbigny, description of 
agglutinans, plate showing.....-...----- 222-2... eceee eee 
