﻿4S 



CARBONIFEROUS AND PERMIAN EORAMINIFERA. 



140. Southern Iowa. Weathered and disintegrated Fusulina-limestone 



from near the point of junction of the Platte River with the Missouri. 

 Upper Coal-measures. 



141. Southern Indiana. A grey, friable limestone, composed almost 



entirely of minute fossils. Labelled " Warsaw Limestone of Hall = St. 

 Louis Limestone of Owen. Subcarboniferous." The particular deposit is 

 known as the Spergen Hill bed, and it appears to run through several 

 counties, 1 the locality from which it takes its name being in Washington 

 County. 



142. Windsor, Nova Scotia. A white, friable Carboniferous limestone, 



with Nodosinella priscilla (Dawson). 



Permian.— Table VII. 



Foraminifera, though pertaining to a limited number of types, abound in the Permian 

 or Zechstein formation of the north-east of England and central Germany, and their 

 occurrence has been also noted in deposits of similar geological age over a small district 

 in the north of Ireland. The constituent beds of the English and German Permian areas 

 have been variously correlated ; but without entering into debated points, the classification 

 adopted by Dr. H. B. Geinitz may be accepted as sufficient for our present purpose. 

 It is as follows (' Dyas/ p. vii) : 



Zechsteinformation or Permian (Dyas). 

 Germany. England. 



a. Oberer Zec/istein. Upper Magnesian Limestone. 



I. Plattendolomit (Dolomitischen Kalk- Upper Yellow Limestone, Conglobated 



schiefer, Stinkkalk, Stinkstein). Limestone. 



b. Mittler Zechstein. Middle Magnesian Limestone. 



II. Rauchwacke or Dolomite (Rauh- Concretionary and Shell-limestone or 



kalk, Hohlenkalk, Riff-Zechstein, Crystalline and Fossiliferous Lime- 



fee), stone. 



1 According to my friend Dr. C. A. White the bed appears in three adjoining counties, viz. Munroe 

 Co., Lawrence Co., and Washington Co. Its occurrence in Lawrence Co. is noticed in the ' Fifth Annual 

 Keport of the Geol. Survey of Indiana' (for 18/3), p. 285, E. T. Cox, State Geologist, from which I 

 gather that the name is also written Spurgeon Hill. 



