174 A?. 
174 A®. 
174 A‘. 
174 A®. 
FORMATIONS OF ORDOVICIAN AGE. 
Fine-grained, chocolate-colored, shaley beds, simi- 
lar to the last in all respects except color. 
ills 
Strophomena sp. undet. 
2. Refinesquina alternata (Emm.) 
CO -2 oS Or # OO 
. Dalmanella subequata ( Con.) 
. Ctenodonta sp. undet. 
. Modiolopsis jerseyensis n. sp. 
. Undet. pelecypods 
. Pterygometopus intermedius Wale. 
. Leperditia fabulites (Con.) 
Chocolate-colored, calcareous band. 
1g 
2. 
9 
oO. 
Dalmanella subequata (Con.) 
Lophospira sp. undet. 
Leperditia fabulites (Con.) 
Brownish, calcareous shale. 
. Lingula sp. undet. 
2. Strophomena sp. undet. 
. Rafinesquina alternata (Emm.) 
. Dalmanella subequata (Con.) — 
. Scenidium anthonensis Sard. 
. Ctenodonta sp. undet. 
. Cyrtodonta sp. undet. 
. Modiolopsis sp. undet. 
. Phragmolites sp. undet. 
. Helicotoma sp. undet. 
. Orthoceras sp. undet. 
. Pterygometopus intermedius Wale. 
. Leperditia fabulites (Con.) 
Fine-grained, buff-colored, shaley bed. 
i 
. Undet. pelecypod fragments 
. Undet. gastropod fragments 
. Orthoceras sp. undet. 
. Leperditia fabulites (Con.) 
Cr H OD Ww 
Dalmanella subequata (Con.) 
(r). 
(r). 
(aa). 
(r). 
(1). 
(r). 
(r). 
(a). 
(a). 
Ge))e 
(a). 
(r). 
(Tr). 
(r). 
(aa). 
(rt). 
(1). 
(r). 
(r). 
(r). 
(r). 
(c). 
(t). 
(a). 
(a). 
(¢). 
(c). 
(c). 
(a). 
19 
Tac (6), 04 
3) ide 
ILsitiey 8) aea\, 
Iga Grivel, 
