286 



NEW YORK STATE MUSEUM 



Feet Total 



Transitional beds from the Manlius to the Coeymans. 

 Tent a c u I i t e s g y r a cant h n s Eaton has 

 not been noticed in this zone, which is a little 

 below the middle of the cliff, but S pi r i f e r 



v a n u x e m i Hall reaches well toward its top. . . 14J-70>0£ 

 Manlius; thin bedded limestone, forming lower 

 part of vertical cliff. Some of the layers contain 

 immense numbers of Teutaculites g y r a - 



c a n t h u s Eaton 3H-746 



Rondout waterlime (f); best exposure near the base 

 of the cliff at the waterfall. The measurements of 

 different parts of the zone vary from 3| to 4J 

 feet 1 4^-714 J 



St rati graphic unconformity 

 Lorraine beds. Partly covered; shales and thin 

 sandstones of the Hudson river beds exposed 

 along the road. At the top a massive sandstone 

 30 or more feet in thickness shown at the base 

 of the cliff to the east of the road, which may be 

 called the Indian Ladder cliff, at the waterfall. 

 Mr Waleott reported " About 300 feet of the Hud- 

 son " in this section, and found specimens of 



O r t h i s testudinaria and T r i n n - 



c 1 e u s concentricus. 2 400-710 



Lower Hudson rivdr beds. Covered from the station 

 to a point near the base of the steep part of the 



hill on the Indian Ladder road 310-310 



22 Section of Countryman hill, near New Salem 



Prosser and Rowe, fig. 202 



The following section begins at the foot of the steep cliff a little 

 north of west of New Salem and continues to the top of the hill. 

 Tt is given in descending order. 



Feet Total 



Hamilton and Marcellus 425-1247 



Top of Countryman hill composed of rather 

 arenaceous shales that contain very few fossils. 

 On the top are loose glacial boulders of Cornif- 

 erous [Onondaga] limestone. Near the base of 

 this upper ridge are fine, argillaceous shales of 



'This zone consists partly of pyritiferous shales which fithologically differ 

 from the waterlime and Professor Harris compares them with the Brayman 

 (Salina) shales below the Cobleskill limestone at Howes Cave (Bnl. Am. 

 Pal. no. 19. p. 25) C. S. P. These beds represent the basal layer of an over- 

 lapping series, a. w. g. 



2 Geol. Soc. Am. Bui. 1890, 1:345. 



