Ft. In. 



Clay shale with widely spaced papery coal 5 



Clay, siliceous 3 



Sandstone, massive, cross-bedded 13 10 



Disconformity 



Shale, calcareous 2 5 



Shale, hard, black, f ossilif erous 1 ( . . 4 



Limestone, gray, very f ossilif erous [ Poverty I . . t - 4 



Limestone, dark, carbonaceous J Run {. . 1 



Shale, dark, carbonaceous 2 6 



Shale, black, fissile, horizon Vandusen coal 7 



The fossils listed from the limestone follows: 



Crinoid segments 



Fenestella shumardi Prout? 



Derbya crassa (Meek and Hayden) 



Chonetes choteauensis Mather 



Productus cora d'Orbigny 



Productus semireticulatus (Martin) 



Marginifera muricata var. missouriensis Girty 



Marginifera wabashensis (Norwood and Pratten) 



Spiriferina kentuckyensis (Shumard) 



Spirifer opimus Hall 



Composita subtilita (Hall) 



A black shale containing much carbonaceous material and layers 

 of pyrite, one-eighth of an inch thick, occurs above the Lowellville 

 limestone, but its exact stratigraphic position was not determined. 

 The following fossils were obtained from this shale: 



Cordaites sp. 



Calamites sp. 



Crinoid stems 



Lingula carbonaria Shumard 



Orbiculoidea missouriensis (Shumard) 



Derbya crassa (Meek and Hayden) 



Marginifera muricata var. missouriensis Girty 



Spiriferina kentuckyensis (Shumard) 



Astartella sp. 



Posidonia girtyi n.sp. 



Pseudorthoceras knoxense (McChesney) 



Orthoceras n.sp. 



Fish teeth 



In Madison Township this limestone occurs in several places. 

 Fossils were collected from the hard limestone which outcrops along 

 the east bank of the Muskingum River about one-half mile north of 

 Symmes Ford. The member here is 4 inches thick, and protrudes 

 prominently from the bank about 6 feet above water level. The 

 section below was measured along the Muskingum River near Symmes 

 Ford: 



Ft. In. 



Limestone and flint, f ossiiiferous, Upper Mercer 2 6 



Coal, bony, Bedford 1 



Covered 3 



26 



