BUFFALO SOCIETY OF NATURAL SCIENCES 87 



Bertie Fauna. 



a. Bertie fauna of Erie district. 



Eurypterids. 



Dolichopterus macrochirus 



D. siluriceps 

 Eurypterus lacustris 



E. lacustris var. pachychirus 

 E. pustulosus 



Eusarcus scorpionis 

 Pterygotus buffaloensis 

 P. cobbi 

 P. grandis 

 Associated forms. 



Cephalopods — Orthoceras undulatum 



Trochoceras gebhardi 

 Brachipod — Lingula sp. 

 Ostracod — Leperditia alta 

 Pelecypod — Goniophora sp. 

 Pulmonate Gastropods — Hercynella buffaloensis 



H. patelliformis 

 Graptolites — "Buthrotrepis lesquereuxi" (formerly considered a sea- 

 weed, now identified by Ruedemann as graptolites) 

 Ceratiocarid — Ceratiocaris acuminata 

 Plant — Chondrites graminiformis (may be a graptolite) 



b. Bertie fauna of Herkimer district. 



Eurypterids. 



Dolichopterus macrochirus 



D. testudineus 

 Eurypterus remipes 

 Pterygotus macrophthalmus 

 P. cobbi 



A ssociated forms. — Scorpion 

 Proscorpius osborni 



Kokomo Fauna. 



Eurypterids. 



Eurypterus (Onychopterus) kokomoensis 



E. ranilarva 

 Eusarcus newlini 



Stylonurus (Drepanopterus) longicaudatus 

 Associated forms. 



Ceratiocarids 



Upper Siluric Fauna of Oesel. 



Eurypterids. 



Eurypterus fischeri 



E. fischeri var. rectangularis 



