LIST OF SPECIES OF FOSSILS FROM AN EXPOSURE OF THE 



■ 



UTICA SLATE AND ASSOCIATED ROCKS, WITHIN THE- 

 LIMITS OF THE CITY OF ALBANY. 



BY C. E. BEECHER. 



Climacograptus bicornis. 

 Dicranograptns ramosus. 

 Diplograptus mucronatus. 

 Crinoid stems. 

 Trematis terniinalis. 

 Leptaena sericea. 



" subtenta. 

 Orthis testudinaria. 

 Zygospira modesta. 

 Avicula Trentonensis. 

 Cleidophorus planulatus. 

 Ambonychia undata. 

 Tellinomyia dubia. '" 



" levata. 



Lyrodesma poststriatum. 



Ten undetermined species of Lamellibranchiata. 

 Hyolithes Americanus. 



sp. ? 

 Bellerophon bilobatus. 



" cancellatus. 



Murchisonia gracilis. 

 Eudoceras proteiforme. 

 Orthoceras bilineatum ? 

 Cornulites fiexuosus. 

 Plumulites sp.? 

 Triartbrus Becki. 

 Tri nucleus concentricus*. 



Thirty-six species, several of which have not beretofore been noticed 

 in tbe U tica Slate. 



Tbe well-known graptolite locality at Kenwood has been for a long 

 time tbe only locality for fossils in tbe immediate vicinity of Albany, 

 and has afforded but a single oboloid shell in addition to tbe grapto- 

 lites. The discovery of strata furnishing an abundant and varied 

 fauna is, therefore, of considerable interest. 



The beds carrying these fossils are nearly vertical and situated north 

 of the Dudley Observatory on the line of the New York Central rail- 

 road. 



