GRAPTOLITES OF NEW YORK, PART 2 I O 



their relative positions. In the broad belt of "Hudson River shales" 

 extending south and southeast of Columbia count) - , into New Jersey, few- 

 localities have become known. One of these, consisting of the cuts of the 

 West Shore Railroad near Highland, opposite Poughkeepsie, was made 

 known by Booth in 1883. Among the graptolites identified by Whitfield 

 from this outcrop are Nemagraptus gracilis, Did y rn o g r a p t u s 

 sagitticaulis, Dicranograptus furcatus and Crypto g r a p - 

 tus tricornis. The museum of Columbia University also contains a 

 small series of graptolites from Poughkeepsie indicating the presence of this 

 horizon in Dutchess count)'. 



In New Jersey, graptolites referable to the Dicellograptus zone have 

 been found in two localities [Weller, 1903, p. 52]. One of these has 

 furnished : 



Corynoides calicularis Nicholson D. angustifolius {Hall) 



Diplograptus foliaceus (Murchison) Lasiograptus mucronatus {Hall) 



the other : 



Nemagraptus gracilis {Hall) Climacograptus parvus Hall 



Dicranograptus ramosus Hall Retiograptus geinitzianus Hall 



No outcrops of this zone in the Appalachian geosyncline south of those 

 in New Jersey are positively known to the writer with the exception of that 

 in Alabama found by Professor Smith. It is here, however, to be noted 

 that the enigmatic species from Augusta county, Virginia, and Parrotsville, 

 Tennessee, described by Emmons [American Geology, pt 2, p. 106 ff] as 

 Monograpsus elegans, Cladograpsus dissimilafis, C. 

 i n e q u a 1 i s and Diplograpsus ciliatus are more suggestive of the 

 Normanskill zone than of any other, as already pointed out by Lapworth 

 [1879, p. 426] who recognizes Dicranograptus ramosus in one of 

 the species of Cladograpsus. The " Monograpsus " is a Didymograptus and 

 the Diplograpsus ciliatus a Glossograptus and probably identical 

 with G. ciliatus [see ibid.~\. 



Collections of graptolites from Pennsylvania and Virginia sent to the 

 writer by Dr Ulrich for inspection did not contain any elements of the 



