16 POTTS VILLE FAUNA OF OHIO 



Strata measured in valley of small tributary of Little Scioto River, 

 Section 22, Hamilton Township, Jackson County 



Feet Inches 

 Sandstone, coarse-grained, 



1 10 



ferruginous: 



Sharon conglomerate equivalent 



1 



10 



Shale, blue 



Sandstone, coarse-grained, 



ferruginous 



Ore, composed of small nodules, Harrison 10 



Clay shale, light - 2 



Sandstone, with parts covered \ T / 1 5 



Shale, soft, yellowish -J L "I 1 6 







The fossils collected from the Harrison ore at this locality are 

 listed below: 1 



Crinoid segments 



Orbiculoidea stoutella n. sp. 

 Orbiculoidea capuliformis (McChesney)? 

 Schizophoria sp. 



Spiriferina kentuckyensis (Shumard)? 

 Hustedia mormoni (Marcou) 

 Composita subtilita (Hall) 



Nucula subrotundata Girty mss. 



Nucula beyrichi von Schauroth 



Nuculopsis ventricosa (Hall) 



Parallelodon tenuistriatus (Meek and Worthen) 



Myalina pernaformis Cox var. 



Schizodus affinis Herri ck 



Schizodus subcircularis Herrick 



Aviculopecten coxanus Meek and Worthen 



Bellerophon crassus Meek and Worthen? 



Euphemus carbonarius (Cox) 



Pleurotomaria ornatiformis n, sp. 



Pleurotomaria, three or more species, undetermined 



Schizostoma catilloides (Conrad) 



Sphaerodoma humilis (Keyes)? 



Muskingum County. The section below, measured on the land of 

 Frank Fink, southeastern part of Section 13, Hopewell Township, 

 shows the character of the member in Muskingum County as well as 

 its relation to the underlying Maxville limestone. 2 



a ln the treatment of fossils in this bulletin the name of the author who originally 

 founded a species is inclosed in parentheses if the generic name of that species has 

 been changed from that under which the fossil was originally described. 



2 Stout, W., Geol. Surv. Ohio, Fourth Ser., Bull. 21, p. 49, 1918. 



