PALEONTOLOGY OF NEW-YORK. 
330 
RECAPITULATION OF THE PRECEDING TABLE, 
SHOWING THE NUMBER OF SPECIES PECULIAR TO EACH FORMATION, AND ALSO THE NUMBER COMMON 
TO SEVERAL FORMATIONS. 
eg ann 
Utica slate & Hudson-river group. | ; 
Trenton and Hudson-river group. 
Trenton limestone & Utica slate. 
Trenton, U. slate & Hudson-river 
Black-river & Trenton limestones. 
re 
iby 
bey 
Birdseye, Black-river and Trenton 
limestones, & Hudson-river group. 
COMMON TO THE 
Chazy and Black-river limestones. 
Calciferous and succeeding strata. 
| 
| 
| 
| 
| 
| 
| 
| 
| Birdseye & Black-river limestones 
\ Potsdam and succeeding strata. 
. 
° 
. 
cl 
° 
° 
. 
/ 
dt Sh LeiRe 
3 
2 
( Hudson-river group. 
Utica slate. 
Trenton limestone. 
Black-river limestone. 
Birdseye limestone. 
ite) 
be | 
oD 
al 
Se 
Chazy limestone. 
Calciferous sandstone, 
RESTRICTED TO THE 
Potsdam sandstone. 
ee 
10 
SPECIES. 
GENERA. 
CLASS 
OR 
ORDER 
PLANT AS 4. os 
INCERT SEDES, 
ZOOPHYTA 
CRINOIDEA .... 
7 
BRACHIOPODA.. 
49 
12 
ACEPHALA .... 
71 
17 
GASTEROPODA.. 
68 
11 
CEPHALOPODA.. 
CRUSTACEA 
