STRATIGRAPHY OF FOSSILIFEROUS MEMBERS 



43 



Productus semireticulatus (Martin) var. 

 . Pustula nebraskensis (Owen) 

 Pustula punctatus (Martin) 



Marginifera wabashensis (Norwood and Pratten) 

 Spiriferina kentuckyensis (Shumard) 

 Spirifer boonensis Swallow? 

 Composita subtilita (Hall) 

 Composita sp. 



Myalina pernaformis Cox 

 Schizodus affinis Herrick 



Pseudorthoceras knoxense (McChesney) 



The Boggs limestone also outcrops along Symmes Creek in Madison 

 Township. At the crossroads, 2 miles from the place where the creek 

 empties into the Muskingum River and a short distance from the 

 mouth of North Branch, the dark, ferruginous limestone is exposed in 

 the bed of the creek where good collecting material is furnished. The 

 section near the crossroads follows (Locality 29) : l 



Section along Symmes Creek, Madison Township, Muskingum County 



| 

 I 



* Feet 



Limestone, shaly , 



Limestone, hard _[ Lower Mercer t 



Limestone, shaly 



Limestone, hard 



Shale, dark 



Coal, bony 1 



Covered '- 16 



Limestone, dark, fossiliferous, Boggs _ 1 



Clay 1 



Covered 1 



Sandstone, shaly 10 



Shale, gray, siliceous . 4 



Limestone, fossiliferous, gray, Poverty Run. .. 



Shale, dark 



Coal, Vandusen -- 



Inches 



8 

 10 

 8 

 6 

 6 

 6 

 4 

 8 



The fossils collected from the Boggs limestone along Symmes 

 Creek are listed below: 



Crinoid segments 



Fenestella shumardi Prout? 

 Rhombopora lepidodendroidea Meek 



Derbya crassa (Meek and Hayden) 

 Chonetes choteauensis Mather 

 Productus cora d'Orbigny 

 Productus semireticulatus (Martin) 



iStout, W., Geol. Surv. Ohio, Fourth Ser., Bull. 21, p. 64, 1918. 



