ston, the Sharon ore lies practically on the Sharon coal. It is very 

 sparingly fossiliferous, and a diligent search in the coal dumps around 

 the mouth of the mine revealed only a few specimens of Orbiculoidea 

 stoutella n.sp. The geologic section at the Glen Nell mine is given 

 below: 1 



Ft. In. 



Sandstone, coarse-grained 12 



Ore, Sharon, in places irregularly bedded with pebbles . . 7 



Shale, dark, carbonaceous 4 



Coal, Sharon 3 1 



In the central part of Section 34, Hamilton Township, the ore 

 horizon is replaced by black bone shales which contain abundant 

 fossil remains. Collections were made from the shales outcropping 

 in the road just east of Tattle Creek, where the following section 

 was measured : 



Ft. In. 



Shale, gray 5 



Shale, bony, black, fossiliferous, Sharon ore equivalent 8 



Shale and covered 2 



Sandstone, Sharon conglomerate equivalent 3 



The fossils listed below were obtained at this place : 

 Lingula carbonaria Shumard 

 Orbiculoidea capuliformis (McChesney)? 

 Marginifera muricata var. missouriensis Girty 

 Phillipsia trinucleata Herrick. 



Trumbull and Mahoning counties. In the southcentral part 

 of Trumbull and in the north-central part of Mahoning County along 

 Mineral Ridge, the Sharon coal is reported to be accompanied by a 

 layer of black band ore which is doubtless the equivalent of the Sharon 

 ore of southern Ohio. 2 The ore varies in thickness from 6 to 10 inches 

 and overlies 2 feet of black shale; both the ore and the shale divide 

 the Sharon coal into two beds. Remains of the fresh water, bivalve 

 crustacean, Estheria, are said to occur in great abundance. 



Summary 



The complete list of fossils collected from the Sharon member 

 follows: 



Crinoid segments 



Lingula carbonaria Shumard 



Orbiculoidea stoutella n.sp. 



Orbiculoidea capuliformis (McChesney)? 



Pustula pertenuis (Meek) 



Marginifera muricata var. missouriensis Girty 



Spiriferinia kentuckyensis (Shumard)? 



Composita subtilita (Hall) 



Solenomya ?? sharonensis n.sp. 



Solenomorpha l^mb^rni n.sp. 



Nucula elongata n. sp. 



Nucula subrotundata Girty mss. 



'Stout, W., Geol. Surv. Ohio, Fourth Ser., Bull. 20, p. 71, 1916. 

 'Newberry, J. S., Geol. Surv. Ohio, Vol. Ill, p. 790, 1878. 



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