PALAEOZOIC POCKS OF EUROPE AND NORTH AMERICA. 
RUSSIA. 
BOHEMIA. 
! 
FRANCE 
(Norm.indy). 
N. AMERICA. 
H. 
K. Upper Oesel Beds. 
G. 
Lower Helderberg. 
F. 
Salina. 
I. Lower Oesel Beds 
E 2. ' 
Part of E 1. ' 
i 
Calcaires ampe- 
liteux de Feu-' 
gueroUes etj 
Niagara. 
H. ? Pentamerus-Esthonus Zone. 
1 
Saint-Sauveur.| 
i 
Clinton. 
Medina. 
Oneida. 
63- 1 
sd 
Raikiill Schist. 
Borealis-Limestone. 
Joerden Schist. 
Part of E 1. 1 
1 
1 
! 
Borkholm Schist. 
Lykholm Schist. 
i 
D 5. 
Schistes ampe-j 
liteux. j 
I 
Hudson River or Lor- 
[raine. 
E. 
Wesenberg Schist 
D 4. 
Gres de May. ] 
D. 
Jewe Schist. 
D 3. 
; Schistes a Caly-| 
Utica. 
1 menes. 1 
1 Minerais de fer. 
Trenton. 
! 
C?3 
C?3 
C?: 
f Itfer Schist. 
< Ruckers Schist. 
[ Echinosphoerites- Limestone. 
D 2 . 
B 3 in part ? 
D 1 y. 
Birdseye and Black River. 
B 3 in part — Yaginaten- or Ortho- 
ceras-Limestone, 
Bj. Glauconite Sandstone. 
Volcanic 
Beds. 
! Gres a bilobites. 
Chazy. 
B,. 
Glauconite Sandstone. 
D 1 /3. 
1 
Calciferous. 
A?^ 
f Dictyoneraa-Schists. 
! Ungulite Grit. 
[ Blue Clay. 
D 1 a. 
i 
Potsdam. 
C. 
i 
1 
1 
Braintree and St. John, 
B in part. 
Ocoee ? * 
Cambrian of Britain, in the Shropshire area. It there consists of “ two main members, viz. 
the basal Quartzite of Lawrence Hill and Caer Caradoc, and an overlying green sandstone, 
the Comley Sandstone (HoUybush Sandstone of Dr. Callaway),” the latter being correlated 
with the Ffestiniog Beds of N. Wales. 
^ The Ocoee conglomerate and slates of East Tennessee are “ doubtfully included ” by 
C. D. Walcott in the lowest Cambrian of North America. (International Congress of 
Geologists, 1888: Report of the American Sub-Committee on the Lower Palgeozoic, p. B29.) 
! 
