130 NEW YORK STATE MUSEUM 



A. praeumbona Hall 



Athyris spiriferoides Eaton 



Coelospira Camilla Hall 



Terebratula sp. 



Stropheodonta inaequistriata Conrad 



Leptostrophia perplana Conrad 



Orthothetes pandora Hall 



O. bellulus Clarke 



Orthis cf. lenticularis Hall 



Chonetes deflecius Hall 



Chonetes cf. yandellanus Hall 



Pholidops hamiltoniae Hall 



Stictopora incisurata Hall 



Stereolasma rectum Hall 



Just below this lies a foot of impure limestone like that im- 

 mediately above, composed largely ofTentaculites gra- 

 cilis t r i a t u s with 



Tornoceras unian<;ulare Conrad 



Chonetes lineatus Hall 



C. cf. deflectus Hall 



Liorhynchus limitare Hall 



From here downward for 6 feet are black shales with irregular 

 concretions, underlain by 2 feet of hard, black calcareous shale 

 with 



Styliolina fissurella Hall 



Liorhynchus limitare Hall 



Panenka, very large, cf. P. lincklaeni Hall 



A few inches below comes in normal Onondaga limeetone. 

 The fauna of this locally developed limestone bed carries certain 

 surviving evidences of the Onondaga sea, in the species 

 Coelospira Camilla, C'honet e s cf . y a n d e 1 1 a n u & 

 and Orthis cf. lenticular is; also in the Chonetes 

 lineatus of the basal bed. The same horizon with more shaly 

 sediment was exposed in the recent excavation at Stony Point, 

 Lake Erie, referred to above, where, in addition to many of the 



