282 NEW YORK STATK MUSEUM 



Feet Total 



CocijiiKUis. A I llio l(>]i (tf llic lliiili lN)iiil cliil ihero 

 are 27 feet of I'eutaiueins [Cocvniaiis] limestone, 

 aii<l a I'll lie lo the south 1() fVri \\\o\v is sIjowu. 

 This liiiieslune forms the top of ihe um race, wliieh 

 exteiuls nearly one mile to the south of the elitf 

 before the shalv limestone [New Scotland] is 

 reached, but, on account of the heavy dip, it is not 

 possible to give its entire thickness 37-722 



MiOilius. The lower part of the clilf is composed 

 mainly of thin bedded, dark blue limestones, having 

 the metallic ring of those composing the Tentacu- 

 lite [Manlius] formation, and in the lower part are 

 abundant specimens of T e n t a c u 1 i t e s g y r a - 

 can thus (Eaton) Hall. By the side of the 

 High Point path there is 38 feet of this rather 

 thin bedded limestone, in all of which S p i r i f e r 

 vanuxemi Hall is common, even to the top. 

 The Tentaculites was not found in these ujiper 

 layers. At this horizon there is a lithologic 

 change; the upper beds are more massive, breaking 

 with an irregular fmcture, and P e n t a m e r u s 

 [S i e b e r e 11 n] g a 1 e a t u s (Dal.) Hall occurs 

 near their baM\, so that the line of divisioii between 

 the Tentaculite [^lanlius] and Pentamerus [Coey- 

 mans] limestones was considered to be represented 

 here 38-G85 



The fossils found in this were: 



1 Tentaculitos gyracnntliiis {Eat(»\) I/all a;i 



2 Spirifor vaimxeiiii Ilall u 



3 Lcperditia alta (C'oii.) Hall v 



4 Modiolopsis (lubia Hull rv 



5 ( V ) Tcllinoniya miclcifoniiis JIall vv 



6 Stroplicoflonla varisti'iata (Con.) JJaU v 



7 Chaetetes (Monotrypolla) arbnsciiliis llull c 



Rondont. In i)laces at the base of the cliff 1 to V^ 

 feet of dark gray, impure, thin bedded limestone is 

 exposed, which resembles the upper layers of the 

 waterlime at Schoharie and Howes Cave, to which 



formation it is referred 1-G47 



Hi rati graphic imconfonn i(j/ 



Lorraine beds. To the south of Altamont is a con- 

 sj)icuous point of the Helderbergs known as High 

 Point, where the general trend of the escarpment 

 turns fi-om a northwesterly to a westerly direction. 

 The lower GIG feet of the itoint, accordino- to the 



