10. 
ae 
12. 
13. 
14. 
15. 
16. 
We: 
18. 
JUS 
20. 
FORMATIONS OF SILURIAN AGE. 
Chonetes jerseyensis Weller. 
Orthis flabellites Foerste. 
Dalmanella postelegantula n. sp. 
Rhipidomella preoblata n. sp. 
Pentamerus circularis n. sp. 
Rhynchonella deckerensis n. sp. 
Rhynchonella agglomerata u. sp. 
Atrypa reticularis (Linn.). 
Spirifer sp. undet. 
Undetermined pelecypod. 
Calymene camerata Con. 
® A®. Fissile, earthy shale, with some irregular lime- 
stone bands. No fossils observed. 
2 A’®*. Blue, more or less crystalline limestone, with an 
abundance of fossils. 
A 
. Escharopora siluriana n. sp. 
. Stropheodonta bipartita (Hall). 
. Orthothetes interstriatus (Hall). 
. Orthothetes deckerensis n. sp. 
. Leptena rhomboidalis (Wilck.). 
MO FF mM rH OF WwW 
oO 
Cladopora rectilineata n. sp. 
Dalmanella -postelegantula n. sp. 
. Rhynchonella agglomerata n. sp. 
. Atrypa? lamellata Hall. 
. Spirfer vanuxemi var. minor n. var. 
. Whitfieldella? sp. undet. 
. Mytilarca sp. undet. 
. Pterinea emacerata (Con.) ? 
. Undetermined pelecypod. 
15. 
Proetus pachydermatus Barrett. 
2 A‘. Rather thick-bedded, calcareous shale, with thin 
limestone bands. 
2 A**. Irregularly bedded, coralline limestone, with an 
abundance of fossils. 
SH Cr He OF Ww rt 
. Zaphrentis sp. undet. 
. Diphyphyllum integumentum Barrett. 
Cladopora rectilineata n. sp. 
. Favosites pyriformis (Hall). 
. Prismatophyllum imequalis (Hall). 
. Halysites catenularia (Linn.). 
5 
9 in. 
? ft. 4 mn. 
