386 



M:\V YORK STATE MUSEUM 



Trochoceras ( I'ttMoceias '!) ouge- 

 Iliuill. 1!M)'. .•{•i7"; fij,rui«'. i;>0. 



ox|»ansuiii. .'V27'. 



gi-Mianli, 107\ 111'. \:]-2\ UlS*; fig- 

 ures, 110. 



ol)li(inatuni. 327'. 



orion, 327". 



pandion, 327*. 



turbinatum, 318'. 

 Tropidoli'ptus cariiialiis. 214". 223^, 



2GG', 2GG^ 270\ 273^ 273% 292', 



330% 332=; figures, 217. 

 Tully limestone, 222°. 



Ulrich, cited, 104% 170% 178^. 235% 

 Uneinulus abruptus, 145% 289% 29G% 

 322'; figures, 145. 

 campbellanus, 155% 281% 289% 300% 

 .'K)G% 307% 307% 323"; figures, 

 15G. 

 mutabilis, 137% 250% 283% 290% 

 297% 309% 319% 320«; figures, 

 138. 

 nobilis, 155% 289% 307% 323^; fig- 

 ures, 156. 

 nucleolatus, 145% 281% 29G% 308% 



309% 309% 322'; figures, 144. 

 pjTamidatus, 283% 296^ 

 vellicatus, 145% 280% 281% 285% 

 289% 29G% ^07% 322'; figures, 

 146. 

 Unconformities, 9 P. 

 Upper Helderberg group, 133°. 

 Utica formation, thickness. 99% 



van Ingen, G., cited, 11G% 131% 302% 

 304^ 306% 307% 308% 310% 311% 

 311% 31G-'. 



\'aiiuxcni. cited, 290". 



Vcrniipora robusta, 324-. 

 serpuloides, 324-. 



Vernon sliale, thickness, 120". 



Vromans Nose, 79'; section of. 2(;7'- 

 68^ 



Vroman's quarry, section in, 237'- 

 39"; section of syndicate quarry in 

 the hillside behind, 249'-51''. 



Walcott, cited, 286\ 



Waterlimes 128% 



Weller, cited, 228% 228\ 



West hill, 79'; general section, 253^- 

 57% 



Whitfieldella cf. nitida, 301% 



nucleolata, 108% 259% 317% 319'; 

 figure, 109. 



Wilbur limestone, 125% 131% 313\ 



Williams, H. S., cited, 172% 



Wilson, Alfred W. G., cit4?d, 12S% 

 345^ 



Wilsonia ventricosa, 155% 289=; fig- 

 ures, 156. 



Zaphrentis sp., 193% 295% 298% SlW 

 corniculum, 294*. 

 gigantea, 294% 

 prolifica, 195% 328-'; figure. 194. 



