REPORT OF THE STATE PALEONTOLOGIST I9O3 355 



in eastern New York. I 1 i o n i a s i n u a t a not recorded from 

 the Cobleskill farther southwest and in the Nearpass section is 

 quite abundant here. The following species were obtained. 



1 Favosites sp. 7 Bellerophon anricnlatus Hall 



2 Atrypa reticularis Linne 8 Kionoceras darwini Billings. 

 ^ Rhynchonella? lamellata //«// 9 Orthoceras (large) 



4 R. litchfieldensis Schnchert lo Leperditia jonesi Hall 



5 Whitfieldella nucleolata //o// tt Calymmene camera ta //a// 



6 Ilionia sinuala Hall 



In the railroad cut the Cobleskill is also exposed but not so 

 favorably for collecting as in the last named locality. The thick- 

 ness in the cut is about 6 feet. The contact with the Rondout 

 could not be observed at this station. The formations exposed 

 at Fiddlers Elbow and in the railroad cut can be readily traced 

 to a short distance east of Accord, where they form a clearly 

 defined clifif. The base of the cliff is mostly covered with talus 

 and the outcrops are not favorable for collecting. 



In the vicinity of Accord no beds suitable for making cement 

 have been observed. This place is but 6 miles from High Falls 

 where cement has been quarried from the dark Rosendale beds 

 which at the latter place have a maximum thickness of 22 feet. 

 It will thus be seen that the lower cement bed so extensively 

 developed in the Rosendale region and which extends to High 

 Falls, becomes too calcareous to be used for cement before 

 Accord is reached. At Rosendale the lower cement bed, with 

 the exception of Leperditia, which is sometimes found near the 

 base, is so far as known, entirely without other fossils. When 

 however High Falls is reached the cement bed, specially near 

 its base, becomes fossiliferous. From the cement rock at this 

 place some corals, Atrypa reticularis Linne, Ilionia 

 s i n u a t a Hall, and X u c 1 e o s p i r a cf. v e n t r i c o s a Hall 

 have been obtained. The Cobleskill can be readily recognized 

 near the brink of the falls on both sides of the stream. The 

 cement bed is about 14 feet thick, and at its base and resting on 

 the quartzites below, is a fossiliferous band of shaly limestone 4 

 to 10 inches tliick. in a j^revious report^ referred to the Wilbur 

 limestone, which in the type section, as at High Falls, underlies 



'N. Y. State Paleontol. An. Rep't. 1903. p. 1146. 



