mian Era in the Ohio Basin. — Claypvle. 
319 
X 
= 
- 
- 
1 
- 
; 
— 
X 
r. 
- 
•- 
= 
a 
a 
X 
- 

z 
z 
5 
ki 
z 
'- 
'J 
I 
- 
Ct. eompressus Xb v 

ed 
Ct. clarki Xbv 
d 
Ct. vvrijjhti Nbv 
dl 
d 
d 
d 
d 
d 
Lat 
ad 
CI sinuatus E W. C 
CI clarki E W. C . 
CI terrelli Xbv.... 
d 
d 
a 
rl 
CI fvleri Xbv 
d 
d 
Cb 
flt 
c 
c 
Ganoids. 
abd 
abd 
abd 
abd 
d 
d 
Cb 
d 
Cb 
(1 
Cb 
d 
Cat. 
d 
Cat 
d 
Cat 
d 
d 
Ch 
d 
Cb 
d 
Ch 
d 
Ch 
Cat 
f See note b. 
± See note a. 
