Devonian Era in the Ohio Basin. — Claypolc. 
247 
>. 
c 
w 
O 
CO 

u 
s 
© 

n 

31 
s 

5 
■a 
53 
S 
xa 
Z 
is 
a 
E 

M 
<C 
c 
a 
02 
E 
a 
53 
V 
DQ 
J. 
V 
a 
— 
O 
Pi 
be 
c 
3 
s 
5 
rt 
U 
£ 
0) 

3 
ta 
U 
Aviculopecten aequilaterus H 
1 
c 
c 
scabridus H 
1 
1 
1 
P 
.... 
C.P. 
B 
C 
... 
B 
c 
' p 
P 
C 
Megambonia lamellosa H 
H 
1 
Gastropoda. 
p 
M. P. 
P 
C 
C 
c 
c 
ventricosum Con 
tortuosum H 

tenuiliratum H 
H. P. 
H 
H. P. 
H. P. 
P 
P 
P 
P 
H. P. 
Pleurotomaria sulcomarginata Con. 
H 
trilix, H 
H 
a H 
c 
P 
P 
P 
H 
P .. 
Crustacea. 
p 
C.H.P. 
CP. 
P 
P 
C.P. 
p 
H 
P 
H 
Palmanites myrmecophorus ? Gr ... 
C. P. 
P 
P 
*Primitia pennsylvanica Jones 
p 
p 
p 
Rnl'ia uncjula Jones 
*P>vt li i cypris favulosa Jones 
H 
Ceratiocaris bamiltoniae n. s 
p 
Ceph > I OPODA. 
Goniatites discoideus H 
complanatus H 
H 
H 
P 
Ortboceras marcellense Van 
H 
P 
dermis H, 
P 
1 
1 k 
H 
* See Amf.r. Geologist. Dec, 1889. 
