lx THE PALEONTOLOGY OF MINNESOTA 
filiforme, 113. 
radiciformis, 1138, 112. 
stellatum, 113*. 
Ascodictyonide, 112, 107, 114. 
Aspidopora, 254, 107, 255, 257, 290. 
areolata, 254, 255. 
calycula, 255. 
eccentrica, 255. 
elegantula, 256, 255, 257. 
newberryi, 257, 255. 
parasitica, 255, 254, 256, 259, 259. 
Asterophyllites, 2. 
Astrid, 83. 
Astreopora vetusta, 94. 
Atactopora, 107, 222. 
Atactoporella, 222, 106, 228. 
crassa, 225. 
insueta, 224, 226, 256, 259. 
newportensis, 227. 
ortoni, 307. 
ramosa, 226, 221, 227, 241. 
schucherti, 226, 225. 
typicalis, 223, 222-225. 
var. precipita, 22, 224, 
Atremata, 338. 
Atrypa, 470, 337, 465. 
bisuleata, 470. 
capax, 462, 
extans, 408. 
hemiplicata, 382. 
increbescens, 462, £59. 
modesta, 467. 
recurvirostra, 466. 
reticularis, 465, 457, 466. 
subtrigonalis, 459. 
Atrypidx, 465, 466, 470. 
Aulopora, 95, 84, 89, 115. 
arachnoidea, 95. 
trentonensis, 95, 84. 
Auloporide, 95. 
Avicularia, 97. 
Bactropora, 106, 110. 
Baculites, 53. 
Batostoma, 288, 98, 104, 107, 277, 278, 285, 289, 290, 
296, 299, 299, 302, 308, 308, 317. 
decipiens, 298, 277. 
fertile, 290, 288, 289, 293, 303. 
var. circulare, 290, 288, 291. 
humile, 294, 293. 
imperfectum, 301. 
implicatum, 288, 296. 
ivrasum, 299. 
jamesi, 288, 295, 296. 
magnopora, 291, 288, 328. 
manitobense, 291. 
minnesotense, 497, 293. 
montuosum, 293, 227. 
ottawense, 300. 
veriabile, 288, 291. 
varium, 292, 294, 295. 
winchelli, 295, 95, 277, 278, 293, 297, 298. 
var. nodosa, 295. 
var. spinulosum, 296. 
Batostomella, 107, 102, 110, 111, 228, 264, 308 
annulata, 229. 
gracilis, 228. 
meeki, 228. 
obliqua, 268. 
perspinulata, 229. 
simulatrixz, 265, 228. 
spinulosa, 229. 
Batostomellide, 263, 107, 265. 
Benton group, 3. 
Berenicea, 120, 102, 107-109, 115, 116 121. 
diluviana, 120, 115. 
minnesotensis, L120, 115, 119. 
primitiva, 121. 
vesiculosa, 121. 
Betula, 5. 
Bidiastopora, 121. 
Bilobites, 444. 
Bolivina, 33, 28. 
antiqua, 384. 
dilatata, 33, 52. 
elongata, 34. : 
presli var. punctata, 34. 
punctata, 34, 52. 
Botryllopora, 107, 110. 
Botrylloporidss, 107. 
Brachial (dorsal) valve, 335. } 
Brachiopoda, 338, 186; chapter, 333-474 
Brachiospongia, 70. 
Bryozoa, 112, 105; chapter, 96-332. 
Bulimina, 32, 28. 
affinis, 32, 52. 
ovulum, 32. 
presi var. punctata, 34. 
pupoides, 32, 52. 
Bumelia marcouana, 22. 
Buskopora, 107, 110. 
Bythopora, 2638, 102, 107, 265, 267, 308. 
alcicornis, 264, 267. 
arctipora, 264. 
fruticosa, 263. 
herricki, 263, 264, 267. 
striata, 263. 
Bythotrypa, 324, 322. 
laxata, 325, 306. 
Calamariex, 2. 
Calamites, 2. 
Calcispongix, 77. 
Callopora, 2765, 103, 107, 186, 215, 223, 263, 266, 276, 
277, 284, 285, 288, 290, 298. 
ampla, 281, 215, 276, 279, 282. 
andrewsi, 276. 
angularis, 277, 215, 276, 278, 279, 281, 282, 298. 
crenulata, 284, 276. 
dalei, 276, 215, 283. 
dumalis, 282, 215, 276. 
elegantula, 276. 
goodhuensis, 282, 276, 279, 281. 
incontroversa, 277, 215, 276, 279. 
magnopora, 277, 276. 
multitabulata, 280, 215, 276-278, 281, 282. 
nodulosa, 276. 
perelegans, 276. 
