776 
LTE, JOURNAL ORM GTS OLO GM 
a small number of species; the following list having been 
obtained from the bluffs along the railroad northeast of 
Florence: 
In 
8. 
Q. 
10. 
iit. 
12) 
Productus semireticulatus, (Martin) de Koninck. (c) 
Productus costatus, Sowerby. (rr) 
Derbya multistriata, (M. and H.) Prosser. (r) 
Chonetes granulifera, Owen. (c) 
Athyris (Seminula) subtlita, (Hall) Newb. = A. argentea, 
(Shep: ) ‘Keyes: (an): 
Bryozoa, sp. (11) 
. Coral, sp. (11) 
From other exposures have been obtained the following 
additional species : 
Meekella striato-costata, (Cox) White and St. John. (c) 
Chenomya minnehaha (Swallow) M. and H. (?) (rr) 
Productus nebrascensis, Owen. (tr) 
Sedgwickia (?) altirostrata, Meek and Hayden. (rr) 
Phillipsia, sp. (1) 
Probably the most fossiliferous zone of the formation is No. 
14, the buff shaly limestones between the Florence flint and the 
massive limestone. It is essentially a Brachiopod fauna in which 
there is an abundance of a few large. species. In the old quarry 
one mile northeast of Florence is the following fauna: 
IE 5 
Oo 
Derbya multistriata, (M. and H.), Prosser. (aa) 
This is probably the species identified by Dr. Newberry, 
as Orthisina umbraculum from the beds of similar age in 
Morris county.* 
Athyris (Seminula) subtihta, (Wall) Newb. (aa) 
Productus semireticulatus, (Martin) de Koninck, var. 
Calhounianus, Swallow. (a) 
Meek considered Swallow’s P. Calhounianus a synonym of 
P. semireticulatus ;? but in the Cottonwood and Kansas 
sections it can usually be distinguished from the P. 
semireticulatus, and it seems distinct enough to be con- 
sidered a variety. 
tRept. Macomb Exp. Exped., p. 21. 
? Final Rept. Nebraska, Pt. II., p. 161. 
