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NEW YORK STATE MUSEUM 



work, it was shown that a very large numerical percentage of its species 

 are of this later Uevonic age, even though accompanied by survivors of the 

 typical Lower Devonic fauna of the Grande Greve limestone. In this 

 larger percentage of species, regarded as confirming the Hamilton age of the 

 Gaspe sandstones, were listed three species, T r o p i d o c y c 1 u s brevi- 

 1 i n e a t u s, T . f o t a 1 i n e a and L u n u 1 i c a r d i u m ? c o n v e x u m - 

 two described from the Hamilton fauna of New York and the third indica- 

 tive of later than Oriskany age- -which it is surprising and interesting to 

 find present in this Oriskany fauna of Pine Hill. There can here arise no 

 question of the early Devonic age of the Pine Hill congeries but the pres- 

 ence of the species mentioned requires us to qualify the diagnostic value 

 previously ascribed to them as exclusively Middle Devonic species and to 

 accept them as equally of Lower Devonic value. So far as this construc- 

 tion affects the interpretation of the Gaspe sandstone fauna it might seem 

 to subtract these species from the census of the Hamilton element therein 

 represented. Such a construction, however, would probably not be an 

 entirely correct expression, for even though members of a Lower Devonic 

 fauna in eastern New York, they are also members of a Middle Devonic 

 fauna in central and western New York, and their associates there in this 

 later stage are, in number and leading importance, their associates in the 

 Gaspe sandstone. It would not alter the valuation of the Gaspe sandstone 

 fauna to divert these species from the Middle to the Lower Devonic con- 

 tingent, because of the continued preponderance of the former ; but as the 

 species are of percluring age, it would still be my view that their presence 

 in Gaspe confirms the indicated Middle Devonic age of that fauna. 



TABLE OF THE ORISKANY FAUNA OF NEW YORK-NEW JERSEY REGION 



Capitals before species names indicate the responsible authorities for the determinations : 

 C=Clarke, Ch=Chadwick, H = Hall, S=Shimer, V=van Ingen, W=Weller 



Fishes 

 V Machaeracanthus sulcatus Newberry 



Annelids 



CV Spirorbis assimilis Clarke 



C Autodetus beecheri Clarke 



C Annelid teeth 



C Cornulites cingulatus Hal 



CSVW Tentaculites elongatus Hall 



SW T. acula Hall 



C Coleolus acus Clarke 



V Spirophyton caudagalli 



