70 PALEOZOIC PALEONTOLOGY. 
stone, in which fossils occur in a sufficiently perfect state of preserva- 
tion to be identified. Irom a thin limestone bed, fifty feet above the 
base of the exposure at this locality, the following species have been 
identified : 
Escharopora siluriana n. sp. 
Stropheodonta bipartita (Hall). 
Rhynchonella agglomerata un. sp. 
Atrypa? lamellata Hall. 
5. Whitfieldella nucleolata (Hall). 
From another thin lmestone band, twenty-five feet higher than 
the last, the following species have been identified : 
Diphyphyllum integunentum Barrett. 
Zaphrentis sp. undet. 
Orthothetes interstriatus (Hall). 
Whitfieldella nucleolata (Hall). 
Leperditia sp. undet. 
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Both of these small groups of species indicate a horizon in the 
Atrypa? lamellata zone of the Decker Ferry formation. The lower 
one, containing the bryozoan, H'scharopora siluriana, may be definitely 
referred to the lower beds of this zone, while the upper one suggests 
the coralline zone, although the corals are not so abundantly repre- 
sented as they normally are in this life zone. 
Locality 71 B.—This locality is on the road to Flatbrookville, about 
three-fourths of a mile below Wallpack Center. The rocks are ex- 
posed in ledges along the roadside and in the fields east of the road. 
The following species have been identified : 
1. Monotrypa corrugata n. sp. 
. Orthothetes deckerensis n. sp. 
. Chonetes jerseyensis Weller. 
. Rhynchonella deckerensis n. sp. 
Or He Go ww 
. Rhynchonella agglomerata n. sp. 
6. Atrypa reticularis (Linn.). 
This fauna is characteristically that of the lower zone of the Decker 
Ferry formation, characterized by Chonetes jerseyensis. 
Locality 90 A.—This “locality lies two and one-half miles below 
Wallpack Center, near the mill on Flatbrook, and is one of the very 
few localities where the formation outcrops east of the stream. The 
following species have been collected, all: of which indicate the 
Chonetes jerseyensis zone of the formation: 
