160 GEOLOGY OF ILLINOIS. 



Ft. In. 



4. Bituminous coal (No. 14) 10 to 22 



5. Fire clay 5 



6. Rough looking hard gray sandstone, sometimes in tbiu even beds, No. 20 of the sec- 



tion 4 



7. Sandy shales, with iron stone concretions * 15 



There is here a regular southerly dip at the rate of thirty feet to the 

 mile, extending from Pana for four miles south. It is probable that 

 near or north of Pana the rocks are horizontal and soon dip north-west- 

 wardly, which they evidently do ten miles north-west of Pana, although 

 the dip is slight. 



The next rocks in descending order crop out on Locust Fork on sec. 

 2, T. 11 N., E. 1 W., and just north. They belong near No. 21 of the 

 section, and appear thus : 



Ft. 



1. Dark bine clay shales, with some regular layers of lenticular concretions of iron stone and 



■ occasional strata of brown ferruginous shales, containing remains of fossils, including Prod, 

 longixpinus, Scllerophon, Crinoid stems, etc., part exposed, remainder in shaft — total 31 



2. Ash gray limestone, weathers drab, has butf shaly partings, abounds in Prod, costatus, P. longiss- 



pinus, Athyrh- t;ubtilita; also contains Prod. Xebrascenis. Sp. cameratus. Prod. Prattenianus, a 

 fish tooth and one specimen each of Syntrilasma hemiplicata and Allorisma subcuneata were 

 obtained from it. 



I regard the rocks of the above section equivalent to the Eamsey 

 creek Fayette county beds. The limestone (No. 2) contains tiie fossils 

 of the Syntrilasma limestone of Eamsey creek, although but one speci- 

 men of that fossil was found. The lithological character, thickuess and 

 fossils are the same as beds found on Beck's creek, Fayette county, and 

 the overlaying shales (No. 1) are similar to corresponding beds at the 

 railroad bridge on Eamsey creek. Down the creek three miles there 

 appears in the creek four feet of lead- blue argillaceous limestone, equiv- 

 alent to No. 22 of the section. The upper beds are shaly, the lower 

 part a firm, even, thick bed of subcrystalliue fine grained deep-blue 

 limestone, having a conchoidal fracture. The upper shaly part is tra- 

 versed by fucoidal maikings and contains many fossils, mostly Prod. 

 Prattenianus, P. Nebrascensis and Sp. cameratus; but fragments of a 

 Nautilus and Bryozoa were also found here. 



A mile further down stream rocks near No. 25 crop out in the bank 

 of the creek, of which the following is a section : 



Feet. 



1. Soft, yellow, ochrey, calcareous shales. 5 



2. Dark olive clay shales 2 



3 Deep blue fucoidal sandstone and sandy shale 1£ 



4. Bituminous shales - ? 



Fossils found in Nos. 1 and 2 were Pleurotomaria sphcerulata, Spirifer 

 cameratus, Si), plano-convexus, Productus longispinus, P. Prattenianus, 

 Ortliis carbonaria, Betzia pnnclulifera, Lophophyllum proliferum, Macro- 

 eheihts, (small sp.), Belleroplion, crinoid stems, and one fine specimen of 

 Ph urotomaria tabulata. 



