66 
~2 
f4 
rd 12 
Fi ae 
PALEOZOIC PALEONTOLOGY. 
Stromatopora concentrica Goldf. 
Monotrypa corrugata n. sp. 
Spirorbis sp. undet. 
Pholidops ovata Hall. 
. Stropheodonta bipartita (Hall). 
. Leptena rhomboidalis (Wilck.). 
. Orthothetes interstriatus (Hall). 
Rhynchonella agglomerata n. sp. 
. Wilsonia qlobosa n. sp. 
. Atrypa? lamellata (Hall). 
. Rhynchospira formosa (Hall). 
18. Whitfieldella nucleolata (Hall). 
ww wore 
ES © 
) 
nS) 
OD eO 2@ 
© ¢ 
sa 
. Actinopteria reticulata n. sp. 
Undetermined gastropod. 
Proetus pachydermatus Barrett. 
. Calymene camerata Con. 
. Beyrichia sussexensis n. sp. 
Beyrichia barretti n. sp. 
2 A®. Blue, crystalline limestone, in beds from six to ten 
inches in thickness, with shaley partings be- 
tween. Fossils common, many ostracodes. 
LOS 
1. 
12. 
Pholidops ovata Hall. 
Rhynchonella agglomerata n. sp. 
Atrypa? lamellata Hall. 
Whitfieldella nucleolata (Tall). 
Actinopteria sp. undet. 
}. Undetermined pelecypods. 
. Undetermined gastropod. 
. Beyrichia perinflata n. sp. 
9. Beyrichia jerseyensis n. s). 
Beyrichia nearpasst 0. sp. 
Beyrichia sussexensis n. sp. 
Beyrichia deckerensis n. sp. 
These faunas of the Decker Ferry formation in the Nearpass sec- 
tion may be readily arranged in several distinct life zones. 
The 
fauna, as a whole, including all of the subfaunas from the lowest to 
the highest, is especially characterized by Rhynchonella agglomerata. 
In all of the fossiliferous beds this species is one of the common forms, 
and in some cases it occurs more abundantly than all other species 
combined. 
