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 seaweed, 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
Associated 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
