2 4 



NEW YORK STATE MUSEUM 



from Mudlick creek, 2 miles west of Seely creek at 1200 feet A. T. ; 

 in a quarry on Hawley hill, 3 miles west of Elmira, 1700 feet A. T. 

 and a roadside outcrop 1 mile west, 1450 to 1700 feet A. T. ; at 1100 

 to 1200 feet A. T., along the road leading from the flats 1 mile 

 southwest of East Corning southward over the hill near the west 

 line of the quadrangle. 



The lower part of this zone is highly fossiliferous and both sand- 

 stones and shales in many places are crowded with large brachio- 

 pods and finely preserved lamellibranchs, for the most part of the 

 same species as those in the division below. 



Fossils are less abundant in the upper part above the horizon of 

 the conglomerate but are still quite common and mostly of the same 

 species as below. The following species have been observed : 



Chonetes scitulus Hall 



C. coronatus Conrad 



Spirifer mesacostalis Hall 



Sp. cf. ziczac Hall 



Sp. marcyi Hall var. 



Sp. mucronatus posterus Hall & 



Clarke 

 Sp. disjunctus Sozverby 

 Productella lachrymosa Hall 

 P. onusta Hall 

 P. hystricula Hall 

 Liorhynchus mesacostalis Vanuxem 

 L. globuliformis Vanuxem 

 Atrypa reticularis Linne 

 A. spinosa Hall 

 Orthis impressa Hall 

 O. tioga Hall 

 O. carinata Hall 

 Stropheodonta cayuta Hall 

 S. perplana var. nervosa Hall 

 S. mucronata Conrad 

 Athyris polita Hall 

 Orthothetes chemungensis Conrad 

 Camarotoechia eximia Hall 

 C. cf. tethys Hall 

 C. contracta Hall 

 Ambocoelia umbonata Conrad 

 Leptodesma longispinum Hall 

 L. sociale Hall 

 L. billingsi Hall 

 L. shumardi Hall 



L. spinigerum Hall 



L. agassizi Hall 



L. disparile Hall 



L. matheri Hall 



Palaeoneilo filosa Hall 



P. constricta Conrad 



P. elongata Hall 



P. emarginata Hall 



Actinopteria cf. theta Hall 



Lyriopecten tricostatus Vanuxem 



P. priamus Hall 



Microdon sp.? 



M. cf. gregarius Hall 



Liopteria chemungensis Hall 



Modiomorpha subalata Conrad 



Macrodon chemungensis Hall 



Mytilarca simplex Hall 



Grammysia sp.? 



Sphenotus clavulus Hall 



Pterinea chemungensis Conrad 



P. sp.? 



Schizodus oblatus Hall 

 S. chemungensis Hall 

 Spathella typica Hall 

 Cypricardinia indenta Conrad 

 Edmondia subovata Hall 

 Orthoceras sp.? 



Pleurotomaria itys Conrad var. 



Streptelasma sp. 



Hydnoceras nodosum Conrad 



