124 POTTS VILLE FAUNA OP OHIO 



Astartella compacta Girty 

 Astartella concentrica (Conrad) 

 Astartella newberryi Meek 

 Astartella varica McChesney 

 Cypricardinia ? carbonaria Meek 



Plagioglypta prosseri n. sp. 



Bellerophon crassus Meek and Worthen 



Pharkidonotus percarinatus (Conrad) 



Pharkidonotus percarinatus var. tricarinatus (Shumard) 



Euphemus carbonarius (Cox) 



Euphemus nodocarinatus (Hall) 



Bucanopsis meekiana (Swallow) 



Patellostium montfortianum (Norwood and Pratten) 



Phanerotrema grayvillense (Norwood and Pratten) 



Pleurotomaria newportensis White? 



Schizostoma catilloides (Conrad) 



Naticopsis tortum (Meek) 



Zygopleura plenum (Herrick) 



Bulimorpha inornata (Meek and Worthen)? 



Sphaerodoma brevis (White) 



Sphaerodoma fusiformis (Hall)? 



Sphaerodoma klipparti (Meek) 



Sphaerodoma newberryi (Stevens) 



Sphaerodoma primigenia (Conrad) 



Pseudorthoceras knoxense (McChesney) 



Another good collecting place is found in the northwestern part of 

 Section 32, Madison Township, about two miles west of Prattsville, at 

 the mouth of an old coal mine located a few hundred yards south of the 

 McArthur pike. The stratum here consists of dark gray, calcareous 

 shales which are very soft and friable, but extremely rich in fossils. 

 The geologic section below was measured at the mouth of the old mine 

 (Locality 85): 



Feet Inches 



Shale, gray 6 



Shale, dark gray, very fossilif erous, McArthur 4 



Coal 1 f 1 1 



Shale ... \Tionesta \ __ 7 



Coal J [2 6 



The following species were identified: 



Crinoid segments 



Derbya crassa (Meek and Hayden) 

 Chonetes mesolobus Norwood and Pratten 

 Productus semireticulatus (Martin) 

 Marginit'era muricata var. missouriensis Girty 

 Marginifera wabashensis (Ncrwood and Pratten) 

 Spiriferina kentuckyensis (Shumard) 



