INDEX. 



821 



BiUingselliDEe, classificatiou of 321, 325 



genera and species referred to, described 745-772 



surface ornamentation discussed 303 



hillingsi, see Huenclla and Protorthis. 

 hillingsianaj see Lingulella. 



Billsta3,n River, Sweden, locality on 320t 



Billy Creek, "Wyoming, locality on 302m 



Bilohites, classification of, by Ulrich 30S 



muscle scars of, discussed by Uirich 308 



no Cambrian representatives 320 



Biludden, Sweden, localities on the peninsula of 311bf 



311c, 311g-l, 321e-in 



Birch Point, Ne\vfoundland, localitj' near 6y 



Birmingham, Alabama, locality near 56q 



Bisbee, Arizona, localities near 142, 358b 



bisecta, see Acrotrcta. 



Bishops Mill, Tennessee, locality at 105 



'bivia, see BillingscUa. 



Bjorkelunda, Sweden, localities at 321u, 321v 



Black Hills, South Dakota, localities in 17j, 



17k, 88a, 164, 165, 167, 355, 355a-f 

 Black Mountain, see Montagne Noire. 



Blackrock, Utah, locality near 3Cr 



"Black shales" (Upper Cambrian), localities in 304b, 304e, 304f 



mentioned 557. 559 



Blacksmith Fork Canyon, Utah, localities in 31c-e, 



31h, 311-n, 54a-p, 54y, 55h, 55ii, 185z 

 Blacksmith Fork section, Utah, in detail, listing included and 



correlated species and localities 148-153 



Blacksmith limestone, in detailed section in Blacksmith Fork, 



Utah, listing included and correlated species and localities 150 



Blackwelder, Eliot, acknowledgments 12 



bibliographic references 14 



species named for 453 



Blackwelder, Eliot [Willis, Bailey, and], bibliographic reference.. 26 

 hlackw elder i , see Obolus ( Westonia). 



Bland County, Virginia, locality in 47h 



Blochmann, Fr., bibliographic reference 14 



terminology of 292 



Bloomington formation (Middle Cambrian), in detailed section in 

 Blacksmith Fork, Utah, listing included and correlated 



species and localities 149-150 



localities in 5h?, 31h, 311, 32x?, 54h, 54i, 54k, 54v, 55d?, 55n 



Blount County, Alabama, localities in 16, 89, 144c 



Blountsville Valley, Alabama, locality in 16 



Blue clay, in generalized section for Russia 144 



Boda, Sweden, locality at 9'e 



Bohemia, Cambrian species of, listed ., 120-121 



generalized section of Cambrian and Ordovician in, listing 



species and localities 124 



localities in 303, 303a, 303b, 303d, 303e, 303g-p, 345, 345a-l 



species of Obolus from, listed 379 



bohemica, see Acrothele. 



Boisdale, Cape Breton, localities near 3p, lOe-i, 13h, I60, 307a, 372b 



Boisdale Road, Cape Breton, localities near lOd, 101, 10k, 10m, 372a 



Bonar, Spain, locality near 350 



Bonne Bay, Newfoundland, locality at 314f 



Bonneterre, Missouri, localities at and near 369a, 369c, 369g 



Bonneterre limestone (Middle Cambrian), in generalized section 



for Missouri, listing species and localities 137 



localities in llj, iim 



Borgholm, Sweden, localities at 8z' 



309f, 310b, 310d, 3101, 31Dj, 310o, 31Dp, 320g, 390i 

 borgholmejisis, see Acrothele. 



Bomemann, J. G ., bibliographic reference 14 



species named for 484 



bornemanni, see Lingulella. 



Bomholm Island, Denmark, localities on 16h-l, 334, 334a-h 



Borregaard, Denmark, localities at 16h, 16i, 161, 334a-d, 334h 



Borstil, Sweden, localities in 311p, 311v, 321, 321a-d, 321o 



Borthwood, Wales, locality at 305h 



Bostwick Canyon, Montana, locality in 148a 



Bosworth, see Mount Bosworth. 



Bosworth formation, detailed section listing correlated species and 



localities 126 



resemblance to Algonkian Belt series mentioned 126 



Botsfordia, described 601 



classification of 321, 324 



compared with A crothele CRedlichella) 663 



Dicellomus 572 



B otsfordia — Cont inued . 



compared with Obolella 587, 58S 



YorUa ? waskingtonensis 613 



evolution discussed SIQ" 



evolution of 317 



general geographic and stratigraphic distribution of 



the species referred to 104 



general stratigraphic distribution and number of Cam- 

 brian species and varieties of 110 



mentioned 605 



muscle scars discussed 312 



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



pedicle tube discussed 314 



reference to, of Botsfordia barrandei discussed 603 



surface ornamentation discussed 301, 302 



type species Obolus pulchcr 601 



vascular markings discussed 311 



? barrandei, described 602 



discussed : 633 



general geographic and stratigraphic distribution tabu- 

 lated ^ 104 



surface ornamentation discussed 1 . . 302 



type specimen figured PI. LVII, fig. 7 



cselaia, described 603 



cardinal area discussed 305 



compared with A crothele matthewi 632 



A crothele nitida 650 



Botsfordia pulchra 608 



Obolus elegant 391 



SckizophoUs rugosa 609 



general geographic and stratigraphic distribution tabu- 

 lated 104 



stratigraphic position mentioned 318 



surface ornamentation discussed 301, 302 



type specimen not figured. 



granulata, described 605 



cardinal area discussed 30^ 



compared with Acrothele matthewi 632 



Acrothele (Redlichella) 663 



Acrothele {Redlichella) granulata 602, 663 



Botsfordia cselata 604 



Botsfordia pulchra ^ 601, 608 



discussed 601 



general geographic and stratigraphic distribution tabu- 

 lated 104 



surface ornamentation discussed 302 



type specimen not figured. 



pulchra, described 607 



cardinal area discussed 305 



compared with A crothele bellapunciata 633 



Botsfordia 9 barrandei 603 



Botsfordia cxlata 606 



Botsfordia granulata CGI, 606, 607 



Lingulella radula 529 



Micromitra (Iphidella) pannula 602 



discussed 602 



general geographic and stratigraphic distribution tabu- 

 lated 104 



muscle scars discussed 312 



surface ornamentation discussed 302 



type specimen not figured. 

 bottnicus, see Obolus ( Westonia). 



Boundary Brook, Cape Breton, locality on 344e 



Bow River group, detailed section listing species and localities 130 



Boxelder County, Utah, localities in 30u, 



31y, 32c, 32n, 32p, 32x, 32y, 33 j, 33t, 

 34m, 34q, 54k, 54q, 54r, 55e, 105x, 329 



Bozemaii5"Srontana, locality near 160a 



Bra«wif^"defined 292 



Brachioccele, defined 292 



shown in figure 374 



vessels of, shown in figure 374 



Brachiopod, most primitive 316, 31S 



oldest known 316 



sunplest form 327, 328 



Brachiopoda, bibliography 13-26 



classification 321-326 



definitions 292-296 



distribution in Cambrian strata 315-316 



distribution tables 98-159 



