CXiV 
THE PALEONTOLOGY OF MINNESOTA. 
Hudson or 
Trenton Period. pees 
Stones Black 
Riv . Trenton 
Group. | Group. | Group. 
BRYOZOA : 
: ajo} . 
A ro] oO n = 
AND ls 3 gig) #4 3 
BRACHIOPODA. al2igial|2| alee s]als 
e)e/2/8)/ sles] sles e| siz 
.|/o/S}s|o |Sale ko el eio 
,/o/ 4/5/35 /S ISS a esl s]al| a 
o}E/Si2/s]/Sleatsalesiclsie 
21/3/8|314| 8 (S218 [281 s/s / 8 
BPP lp|n]e]o lead jaezj/e]o | 
@onstellariaivaria, Me Sprsece) selec siete 311 oa 
Stellipora antheloidea Hai odo V OSI NCGS x 
Nicholsonella laminata, n. sp............ 315 x 
Nicholsonella ponderosa (?) Birich eet sehye 316 x|x 
Leptotrypa hexagonalis Ulrich........... 317] x | x 
Leptotrypa informis, n. Sp.............5. 317 x] 2 
Leptotrypa claviformis, n. sp............ 319 x| xx 
Leptotrypa acervulosa, n. Sp............. 318 x 
Spatiopora labeculosa, n. sp........... «. 320 x 
Spatiopora iowensis, 0. Sp....-......-.+.: 321 = 
Crepipora subequata, n. Sp............-. 322) x 
Crepipora perampla, ND. Sp.... ...-...... 323]? x 
Bythotrypa laxata Ulrich................ 325 xl x x x 
Arolotichia impolita Ulrich.............. 327 x 
Ceramoporella distincta Ulrich.......... 328 x 
Ceramoporella inclusa, n. Sp..........-..- 329 x|x 
Ceramoporella interporosa Ulrich.. 330) x 
Diamesopora trentonensis, 0. Sp........-. 330 = a 
Ceramophylla frondosa, n.sp............ 331 = 
BRACHIOPODA. 
Lingulaelderi Whitfield................. 339 x|x ) 
hingula eva Billings ee acerec cee se selene 341 x 
Lingula philomela Billings Wecapouseone 342 x 
Lingula riciniformis Hall................ 343 x 
Lingula ue var. galenensis W. & S|} 344 x 
Lingula modesta Ulrich................. 344 x 
Mingulaclathratay na SPwerc ne oe ce eerser c 345 x 
Lingula coburgensis ? Billings....... ... 346] x 
Lingula iowensis Owen.. 91x 
Lingula beltrami, n. sp : x 
Lingula n. sp. (? canadensis Billings)... | 352 x 
L. (Glossina) deflecta W. & S............. 348 x x 
L. (Glossina) hurlbuti N. H. Winchell...| 347 x 
Lingulasma schucherti oe Tah oeceesebee 353 x] x 
Lingulasma galenensis W. &S........... 354 x ? 
Dinobolus (?) parvus Wihitield ens... 356 5 
Siphonotreta (?) minnesotensis Hall. . 358 x 
Leptobolus occidentalis Hall............. 360 x 
Orbiculoidea lamellosa ? Hall............ 358) x 
Schizotreta pelopia Billings.............. 365 x 3 
Schizotreta minutula, n. sp......... 366 x 
Trematis huronensis? Billings.,.......... 368 xix | x 
Trematis ottawensis Billings....... .... 369 x 
Schizocrania fllosa Hall.................. 370) x ? 
Crania setigera Hall.. Soe bal ai) |>-<4|>-e|P ><) loc! os 
Crania granulosa N. H. Winchell... beootos 373] x 
Crania trentonensis Hall................. 374 x 
Oraniellar(?) mlrichigitall se... ca. w25 acre 375 x x 
Pholidops trentonensis var. minor, n. var.} 376 x x 
Clitambonites diversus Shaler........... 379 x |x 
Clitambonites ‘‘ var. altissimus, n. var.| 38] x 
Scenidium anthonensis Sardeson......... 381] x x 
Parastrophia hemiplicata Hall........... 382 se 
Parastrophia ‘* var. rotunda, n. var.} 383 x 
Parastrophia scofleldi, n.sp.............. 383 x 
Strophomena incurvata Shepard......... Bistal [e.g >.<] 2:9 [eel || as] | 
Strophomena neglecta James............ 388 ii 
Strophomena ‘‘ var. acuta, 0. var...... 388 x 
Strophomena trentonensis, n. sp......... 389) x6 |[ 58 
Strophomena septata, n. Sp...........08. 390 x 
Strophomena rugosa Blainville........... 390 x 
Strophomena ‘“ var. subtenta Hall..} 393 x 
Strophomena rlanodorsata W.&S....... 393 x 
| Cincinnati region. 
| 
TULR 
TUG 
Tennessee. 
n 
New York. 
| Oanada. 
HAW 
