l68 NEW YORK STATE MUSEUM 



Upper Chazy limestone 



Valcour island, Clinton co. N. Y. 

 G. H. Hudson, donor 

 Orthoceras schumardi see Geisono- 

 ceras shumardi 



Orthoceras tenuiseptum see Came- 

 roceras tenuiseptum 



Orthoceras subarcuatum see Spyro- 

 ceras clintoni 



Orthoceras (?) vagum Ruedemann 



6432 J-^4_3 2 TYPE Orthoceras (?) vagum Ruedemann. 



New York state museum bulletin 90. 1906. p. 



435' pl- 9'%- 9; Pl- 13. fig- I. 2. 



Upper Chazy limestone Valcour island, N. Y. 



G. H. Hudson, donor 



ORYGOCERAS Ruedemann 

 Orygoceras cornu-oryx Whitfield (sp.) 



6433 J^^-3-8- HYPOTYPE Orthoccras cornu-oryx Whit- 



field. American museum of natural history bul- 

 letin 8. 1886. p. 320. 



Orygoceras cornu-oryx Ruedemann. 

 New York state museum bulletin 90. 1906. pi. 14, 

 fig. 6. 



Beekmantown (Fort Cassin beds) 



. Valcour, Clinton co. N. Y. 

 G. van Ingen & R. Ruedemann, coll. 1899 



PILOCERAS Salter 

 Piloceras explanator Whitfield (sp.) 



6434 ^^|-S-2- HYPOTYPE Ruedemann. New York state museum 



bulletin 90. 1906. pi. 10,11. 

 Beekmantown (Fort Cassin beds) 



Valcour, Clinton co. N. Y. 

 G. van Ingen & R. Ruedemann, coll. 1899 



