SPENCER : THE YOREDALE AND MILLSTONE GRIT ROCKS. 
391 
Millstone Grits. 
0) 
Fossils from the 
yoredale and millstone grit shales. 
u 
hJ 
c 
» 
O 
Kinder. 
1 
Third Grits. 
)ugh Rock. 
lLEs under t 
ifferent grits 
1 
Goniatites reticidatus Phil. 
■5'f 

55 
striolatus „ 
it. 
'A 
-X- 
4s- 
5) 
ohtusus ... 
it. 
'A 
5) 
gibsoni ... 
55 
. looneyi ... 
■>«• 
-A 
55 
gilbertsoni 
55 
striatus... 
55 
sjnrorbis 
55 
evolutus 
55 
calyx 
55 
bidorsalis 
55 
micronatus 
iL 
5) 
listeri ... 
•vc" 
5) 
serpe7itinus 
Xautilus 
sidcatus 
! 
55 
tuber culatus 
55 
cyclostomus 
55 
subsulcatulus ... 
Orthoceras cinctum 
55 
steinhaueri 
55 
gesneri ... 
55 
unguis ... 
5) 
annulare 
55 
attenuatus 
i 
55 
inequiseptum Phil. 
55 
om^e Phil. 
55 
undulaturti Phil. 
5) 
annulaturti 
B 
