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NEW YORK STATE MUSEUM 



At Mix & O'Reilly's quarry the contact between the Lorraine 

 and Salina beds can be favorably seen. The following section 

 was measured with the aid of Mr O'Reilly. 



Near the Brown quarry, 14 mile southeast of the Schoharie 

 postofnce, the Salina shales are exposed by the roadside. In the 

 quarry there is exposed the basal member of the Cobleskill, 38 

 inches thick. This layer is hard and compact and except where 

 weathered, fossils can be obtained from it only with difficulty. 

 This layer is followed by one 16 inches thick, locally known as 

 the marble layer on account of the beautiful polish which it 

 takes. The marble layer is followed by thin layers 1 to 3 inches 

 thick, having a somewhat sandy texture and quite fossiliferous. 

 The following species were obtained from Brown's quarry. 



1 Chaetetes sp. 



2 Favosites niagarensis ? Hall 



3 Stromatopora concentrica Hall 



4 Fenestella s'p. 



5 Lichenalia cf. concentrica Hall 



6 Camarotoechia neglecta Hall 



7 Leptaena rhomboidalis Wilck. 



8 Orthothetes interstriatus Hall 



9 Rhynchonella ? lamella ta Hall 



10 Spirifer crispus var. corallinensis Grabau 



11 Stropheodonta textilis Hall 



12 Whitfieldella nucleolata Hall 



13 Ilionia sinuata Hall 



14 Pterinea securiformis Hall 



15 Tellinomya aequilatera Hall 



16 Pleurotomaria ? subdepressa Hall 



17 Orthoceras sp. 



18 Tentaculites sp. undct. 



19 Beyrichia sp. undet. 



20 Leperditia jonesi Hall 



The faunas from the different layers vary somewhat. In (he 

 thin layers at the top Rhynchonella 1 a m e 1 1 a t a is 



Feet 



From the top of Lorraine to base of the Rondout 



Cobleskill (partly obscured) 



Thickness of Salina shales 



Thickness of Rondout 



33 

 6 

 27 

 17 



