STRATIGRAPHY OF FOSSILIFEROUS MEMBERS 79 



Holmes County. The following fossils, which are among the col- 

 lections in the Geologic Museum at The Ohio State University, were 

 obtained from the Lower Mercer shales near Millersburg in Hardy 

 Township (Locality 51): 



Crinoid segments 



Orbiculoidea meekana (Whitfield) 

 Derbya crassa (Meek and Hayden) 

 Chonetes mesolobus Norwood and Pratten 

 Productus cora d'Orbigny 



Parallelodon obsoletus (Meek) 

 Myalina swallovi McChesney 

 Entolium aviculatus (Swallow) 



Wayne County. The geologic section below was measured near 

 the road corners in the northern part of Section 17, Paint Township, 

 where the exposure of Lower Mercer limestone is fairly characteristic 

 for the county. No collections of fossils were made. 



Feet Inches 



A llegheny formation 



Limestone , f ossilif erous , Putnam Hill 3 8 



Coal, Brookville 2 4 



Pottsville formation 



Clay, gray 7 6 



Coal, smut __ 1 



Clay j 3 ... 



Covered 36 8 



Shale, gray 7 



Ore, Lower Mercer __ 4 



Shale, gray * __ 5 



Limestone, blue, f ossilif erous } Lower Mercer 1 9 



*r!' b u 0ny "-" } Middle Mercer I l 3 



Shale, bony J I __ 2 



Stark County. In Stark County the Lower Mercer member is ex- 

 posed at various places, although fossils were obtained from only one 

 locality. The limestone is hard and fossiliferous, varying in thickness 

 from 1 to 3 feet. The following forms were obtained from the Lower 

 Mercer limestone and the black carbonaceous shale overlying the lime- 

 stone near East Greenfield at the shaft mine, two and one-half miles 

 east of Dalton (Locality 52): 



FOSSILS FROM THE LOWER MERCER LIMESTONE 



Lophophyllum profundum (Milne-Edwards and Haime) 

 Crinoid segments 

 Fenestella limbata Foerste 



