NORTHERN END OF THE HELDERBERG PLATEAU 61 



in some of the small gullies, where the follow- 

 ing were collected. 



1 Spirifer macropleurus (Con.) Castelnuu (a) 



2 S. perlamellosus Hall (c) 



3 S. cyclopterus Hall (a) 



4 Eatonia medialis (Van.) Hall (c) 



5 Leptaena rhomboidalis (Wilckens) H. & C. (c) 



6 Stropheodonta becki Hall (rr) 



7 Strophonella punctulifera (Con.) Hall (r) 



8 S. cavumbona (Hall) H. & C. (rr) 



9 Meristella laevis (Van.) Whitfield (a) 



10 Trematospira globoea Hall (r) 



11 T. multistriata Hall (rr) 



12 Dalmanella planoconvexa (Hall) H. & C. (a) 



13 D. subcarinata (Hall) H. & C. (c) 



14 D. perelegans (Hall) H. & C. (rr) 



15 Rhipidomella oblata (Hall) H. & C. (r) 



16 Atrypa reticularis (Lin.) Dal. (rr) 



17 Uncinulus vellicatus (Hall) H. & C. (rr) 



18 Stenoschisma formosa Hall (rr) 



19 Lingula centrilineata Hall (rr) 



20 Platyceras ventricosum Con. (rr) 



21 Streptelasma strictum Hall (rr) 



Feat 



B 3 Becraft limestone but a little below the Alta- 10=160 

 mont-Knox road. 



B 4 Very fossiliferous Oriskany sandstone under- 2+=162 

 lying the road. On top of the sandstone, along 

 the road are large numbers of impressions of 

 Fucoides cauda-galli. 



B 5 Esopus shale, largely covered on the slope to 83=245 

 the south of the road but showing fairly well 

 in small gullies. J of a mile to the east is a 

 small quarry in the lower part of the shale. 

 B 6 Onondaga light gray limestone capping the hill. The dip 

 on the face of this ledge is 2° s, 38° w. 



