Mercer Limestone in Newark-Zanesville Region 295 



The following fossils were obtained in the calcareous shale : 



Lophophyllum profundum (Milne-Edwards and Haime) 



Orbiculoidea missouriensis Shumard 

 Orthothetes crassus (Meek and Hayden) 

 Chonetes mesolohus Norwood and Pratten 

 Productus cor a d'Orbigny 

 Productiis longispinus Sowerby 

 Spirifer camaratus Morton 

 Spirifer rockymontanus Marcou 

 Seminula argentea (Shepard) 



Leda hellistriata Stevens 



Yoldia stevensoni Meek 



Parallelodon tenuistriatus Meek and Worthen 



Schizodus curtus Meek and Worthen 



Aviculopecten coxanus Meek and Worthen 



Acanthopeden carhoniferus (Stevens) 



Pecten (Entolium) aviculatus (Swallow) 



AUorisma sp. 



Pleurophorus oblongus Meek 



Cypricardinia carbonaria Meek 



Astartella neivberryi Meek 



Astartella varica McChesney 



Belter ophon percarinatus Conrad 



Euphemus carbonarius (Cox) 



Euphemus nodocarinatus Hall 



Bucanopsis montfortiana Norwood and Pratten 



Crinoid segments and plates. 



The Atlen Coal Entry. At the west end of Fultonham an entry- 

 has been made to Coal No. 5 on the land of Mr. Allen just north 

 of the Zanesville and Maysville pike. Farther down the hill and 

 across the road from the coal entry the Mercer limestone is ex- 

 posed on a small branch of Bush creek. The limestone is here 2 

 feet and 8 inches thick with a layer of iron ore nodules on top 

 6 inches thick. Below the limestone coal and fire clay may be 

 seen similar to that in Hough's Hollow. The iron ore on the top 



