REPORT OF THE STATE PALEONTOLOGIST I903 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 southAvest and in the Nearpass section is 

 quite abundant here. The following species were obtained. 



1 Favosites sp. 7 Bellerophon auriculatus Hall 



2 Atrypa reticularis Linne 8 Kionoceras darwini Billings 



3 Rhynchonella? lamellata Hall 9 Orthoceras (large) 



4 R. litchtieldensis Schuchert lo Leperditia jonesi Hall 



5 Whitfieldella imcleolata Hall ir Calymmene camcrata Hall 



6 Ilionia siniiata 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 wdth the Rondout 

 could not be observed at this station. The formations exposed 

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

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

 defined cliff. 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 low^er 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 knowni, 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. 1dic Cobleskill can be readily recognized 

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

 cement bed is about r4 feet thick, and at its base and resting on 

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

 to 10 inches thick, in a previous report^^-eferred to the.A\^ilbur 

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



'N. Y. State Palcontol. An. Rep't. 1903. P.TT46. 



