GEOLOGY AND PALEONTOLOGY OF THE SCHOHARIE VALLEY 291 



Feet Total 



Transition beds 



12-413 



Thinner bedded limestones than the above which 

 are transitional in lithologic and faunal char- 

 acters from the Pentamerns [Coeymans] to the 

 Tentaculite [Manlius] limestone. 



Ma nl ins limestones 



31-101 



Dark blue, thin bedded limestones, the layers of 

 which are generally from one to three inches in 

 thickness and break with a ringing sound. 

 These thin limestones form the lower part of 

 the vertical cliff from Xew Salem around the 

 northern end of the Helderbergs to Altamont. 

 The fossils are: 



1 Tentaculites gyracanthlis (Eaton) Hall aa 



2 Spirifer vanuxeiui Hall aa 



3 Leperclitia alta {Con.) Hall aa 



4 Megambonia ayiculoidea Hall v 



5 Modiolopsis (?) dvtbia Hall r 



6 Chaetetes (Monotrypella) arbnseulns Hall r 



Covered by soil and talus 10-367 



Lorraine beds 57-357 



Bluish gray, fairly massive sandstones which 

 alternate with dark colored argillaceous shales. 

 Covered by soil, drift and talus to the foot of the 



In the above section the contact of the Lorraine beds and the 

 overlying limestones is covered, but in a small glen west of 

 the house of Kensselaer Markel -| mile south of Xew Salem the 

 contact is clearly shown. The section of this glen is as follows 

 [descending order] : 



hill 



300-300 



23 Section south of New Saiem 



Prosser and Rowe 



Feet Total 



Coeymans (partly exposed) 



3S-1S0 



Massive limestone forming cliff at the head of the 

 run which is the southerly continuation of the 

 lower cliff directly west of Xew Salem. 



Transitional 



12.1-142 



Transitional layers from the Pentamerns [Coey- 

 mans] to the Tentaculite [Manlius] limestone, 

 containing Spirifer va nuxem i Hall and 

 Leperditia alta (Con.) Hall. 



