Handbook of Paleontology 343 



equivalent of the High Falls shale and perhaps the Binne- 

 water sandstone also. This shale bed has a thickness of 

 150 feet. The Wilbur limestone (Hartnagel '05) and the 

 Rosendale waterlime (Hartnagel '05) probably together 

 represent the Bertie waterlime farther west. The Wil- 

 bur limestone overlies the Binnewater sandstone or, when 

 this is absent, the Ordovician shales. It has its best ex- 

 posure in the Rondout valley and receives its name from 

 the town of Wilbur on the Rondout creek, a mile south 

 of Kingston. This is a fossiliferous limestone which 

 takes the place of the Rosendale waterlime in passing 

 southward toward the Port Jervis region (Hartnagel). 

 The Rosendale waterlime underlies the Cobleskill lime- 

 stone in Ulster county and in part, at least, is the equiva- 

 lent of the Bertie waterlime, formed in a separate basin. 

 There are no euryterids, however, in this waterlime. 

 The name was taken from the village of Rosendale, eight 

 miles southwest of Kingston. South of High Falls it 

 changes into a fossiliferous limestone. The formation 

 has a thickness of 14 feet and was formerly quarried for 

 cement. 



The Cobleskill limestone (Hartnagel '03) is named 

 from its exposure on the Cobleskill, Schoharie county, 

 and was known as the "Coralline limestone" on account 

 of its great abundance of corals. It is a thin formation, 

 having its greatest thickness of seven to 30 feet in east 

 central New York and a thickness of five to eight feet 

 in western New York. It is the lowest of the many 

 limestone formations of the Schoharie area. Tbt Cobles- 

 kill limestone is a typical coral facies and, while it does 

 not show the reef character, it has the reef species. To 



