GRAPTOLITES OF NEW YORK, PART 2 

 TABLE 1 GRAPTOLITES OF THE NORMANSKILL SHALE IN NEW YORK {concluded) 



!5 



53 id. var. clebilis nov 



54 G. whitfieldi {Hall) 



55 Cryptograptus tricornis (Carruthers). 



56 Climacograptus parvus Hall 



57 C. putillus tmit. eximius nov 



58 C. modestus nov 



59 C. scharenbergi Lapworth 



60 C. bicornis Hall 



61 Retiograptus geinitzianus {Hall). . . . 



62 Lasiograptus mucronatus {Hall). 



63 L. bimucronatus Nicholson 



OTHER 



LOCALITIES IN 



NEW YORK. 



none 



many 

 many 



Lansingburg 

 Lansingburg 



many 

 Chatham, 



Schodack land'g 

 Moordener kill 



This wonderfully rich fauna, consisting of some 60 species of grapto- 

 lites, is, however, in the great majority of the outcrops only preserved in a 

 very fragmentary condition, i. e. in but a few of the most common and 

 characteristic forms. Only the four localities given in the foregoing list, 

 viz, Normanskill (Kenwood), Glenmont near Albany, Mt Moreno near 

 Hudson, and Stockport in Columbia county have furnished complete or 

 nearly complete faunas. Of these, Glenmont has yielded the most com- 

 plete series, 4.1 forms, Mt Moreno 32, Stockport 30 and Normanskill 29. 

 The faunas of all these four localities can be considered as typically repre- 

 senting the Normanskill association and as being strictly of one horizon. 

 The slight differences in their associations are probably largely referable to 

 the greater or less completeness of the collections. A few notable differ- 

 ences, not so readily explained, are the occurrence of the Dendroidea in 

 the Glenmont collection alone (with the exception of T h a m n o g rap t u s 

 c a p i 1 1 a r i s ) and the scarcity of the Didymograpti in the same collection, 

 while the latter prevail in the shales of Mt Moreno. 



