CLASSIFICATION OF TYPE SPECIMENS BY 

 GEOLOGIC FORMATIONS 



References are to the serial marginal numbers at the left of each page. 



LOWER SILURIC 



TRENTON CONGLOM- 

 ERATE 

 Pteropoda 



Hyolithellus micans, 5641 



UPPER SILURIC 



NIAGARAN 

 Vermes 



Coleolus (?) spinulus, 5164 



Bryozoa 



Fenestella pertenuis, 5175 

 Stictopora orbipora, 5176 



Lamellibranchiata 



Pterinea brisa, 5501 



Crustacea 



Ceratocephala (Acidaspis) fimbriata, 

 5664 



SALINA BEDS 



PITTSFORD SHALE 



Crustacea 



Dolichopterus ? ?, 5666 

 Eurypterus pittsfordensis, 5670-96 

 Eurypterid ?, 5697-99 

 Hughmilleria socialis, 5700-48 

 Hughmilleria socialis var. robusta, 



5749-51 

 Pterygotus sp., 5752, 53 

 Pterygotus monroensis, 5754, 55 



MANLIUS LIMESTONE 

 Brachiopoda 



Camarotoechia hndsonica, 5179-81 

 Rhynchospira excavata, 5185 

 Spirifer eriensis var., 5186-88 

 Spirifer corallinensis, 5189 

 Spirifer vanuxemi, 5196, 97 

 Whitfieldella cf. nitida, 5202 



MIDDLE DEVONIC 



Lamellibranchiata 



Lunulicardium cf. inflatum, 5364 

 Lunulicardium miilleri, 5368 



MARCELLUS SHALE 

 Lamellibranchiata 



Pterochaenia fragilis, 5516 



HAMILTON BEDS 

 Plants 



Psilophyton princeps, 5160 



Lamellibranchiata 



Btichiola halli, 5214 



LOWER UPPER 

 DEVONIC 



Lamellibranchiata 



Buchiola cf. eifelensis, 5213 



UPPER DEVONIC 



TULLY PYRITE 

 Echinodermata 



Pentremites leda, 5162 



Vermes 



Tentaculites bellulns mut. stebos, 5171 

 Tentaculites gracilistriatus mut. as- 

 modeus, 5172 



Brachiopoda 



Ambocoelia umbonata mut. pluto, 



5177 

 Ambocoelia umbonata mut. pygmaea, 



5178 

 Cyrtina hamiltonensis mut. pygmaea, 



5182 



