CXL 
BRYOZOA. 
Trenton Period. 
THE PALEONTOLOGY OF MINNESOTA. 
‘Lower Buff.” 
Vanuxemia bed, 
Stictoporella bed. 
Rhinidictya bed. 
Fucoid and 
Phylloporina beds. 
OClitambonites bed, 
Fusispira and 
Trigonodictya conciliatrix Ulrich 
Escharopora angularis, n. sp 
Escharopora subrecta Ulrich 
Escharopora recta ? Hall................. 
Escharopora confluens, n. sp 
Escharopora (?) limitaris, n. sp 
Phenopora incipiens, n. sp 
Phenopora wilmingtonensis, n. sp....... 
Arthrupora simplex Ulrich 
Arthropora bifurcata, n. sp 
Arthropora reversa, n. s 
Homotrypa exilis Ulrich 
Homotrypa similis Foord 
ee. Cn 
| Ctenodonta bed. 
Trenton 
Group. 
Nematopora beds. 
ta 
‘al 
” 
oy 
n 
nw 
n” 
Stictoporella rigida Ulrich 
Stictoporella dumosa, n. sp 
Stictoporella angularis Ulrich 
Stictoporella ‘* var. intermedia, n. var. 
Stictoporella frondifera Ulrich........... 
Stictoporella cribrosa Ulrich 
Arthrostylus conjunctus Ulrich 
Arthrostylus obliquus Ulrich 
Helopora divaricata Ulrich 
Helopora alternata Ulrich............... 
Helopora mucronata Ulrich 
Helopora quadrata, n. sp.... ........-0.. 
HMeloporajeleganssnAspovees scce sece woe se 
HMelopora harrisi-James.. 2: 5. 0ch. see. sess 
HELO HOTA -mUMOEtsccise reste se urnsaisbtecels 
Arthroclema striatum, n. sp 
Arthroclema cornutum Ulrich 
Arthroclema armatum Ulrich 
Arthroclema pulchellum Billings........ 
Arthroclema sp. undet (1) 
Nematopora ovalis Ulrich 
Nematopora granosa Ulrich 
Nematopora delicatula Ulrich 
Nematopora conferta Ulrich 
Phylloporina sub!axa Ulrich 
Phylloporina reticulata Hall 
Phylloporina halli Ulrich 
Phylloporina corticosa Ulrich 
Monticulipora wetherbyi Ulrich 
Monticulipora incompta, n. sp 
Monticulipora grandis Ulrich 
Monticulipora arborea, n. sp 
Monticulipora cannonensis, n. sp...... 
Atactoporella typicalis var.praecipta,n.va 
Atactoporella insueta, n. sp 
Atactoporella crassa, n. sp 
Atactoporella ramosa, n. sp 
Homotrypella instabilis Ulrich 
Homotrypella multiporata, n.sp......... 
Homotrypella subgracilis, n. sp 
Homotrypella ovata, p. sp 
Homotrypella mundula, n. sp 
Homotrypella gracilis Nicholson. ....... 
Homotrypella rustica, n. s 
Homotrypa minnesotensis Ulrich 
~ 
ww 
“uw an 
* 
” 
nw 
wow 
ww 
aia 
Aw 
Vd 
Homotrypa separata, n. sp 
Homotrypa intercalaris, n. sp 
Homotrypa subramosa Ulrich 
Homotrypa ‘f var. insignis Ulrich. 
Homotrypa tuberculata, n. sp 
nw 
n 
n 
n 
n 
Maclurea bed, 
chmond group. 
New York. 
| Utica group. 
Tennessee. 
I 
| Canada. 
| ni 
nm | Cincinnati region. 
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