Productus cora d'Orbigny 



Productus semireticulatus (Martin) 



Productus semireticulatus (Martin) var. 



Pustula nebraskensis (Owen) 



Spiriferina kentuckyensis (Shumard) 



Spirifer boonensis Swallow? 



Composita subtilita (Hall) 



Composita sp. 



Edmondia ? peroblonga Meek and Worthen 



Edmondia sp. 



Leda prolongata n.sp. 



Leda bellistriata Stevens 



Parallelodon carbonarius (Cox) 



Aviculopinna americana Meek 



Myalina pernaformis Cox 



Schizodus amplus Meek and Worthen 



Schizodus curtus Meek and Worthen 



Schizodus wheeleri Swallow 



Schizodus affinis Herrick 



Aviculopecten coxanus Meek and Worthen 



Deltopecten scalaris (Herrick) 



Acanthopecten carboniferous (Stevens) 



Astartella concentrica (Conrad)? 



Euphemus carbonarius (Cox) 



Pleurotomaria sp. 



Schizostoma catilloides (Conrad) 



Naticopsis altonensis (McChesney) 



Pseudorthoceras knoxense (McChesney) 



Temnocheilus forbesianus (McChesney) 



In Muskingum Township along Blunt Run, a small stream 

 which flows into the Muskingum River from the west, the Boggs 

 member is a limestone similar in lithologic character and composition 

 to the Lower Mercer. The stratum is extremely fossiliferous and 

 outcrops in the bed of the stream where conditions are especially 

 good for collecting. The section along Blunt Run on the land of 

 Carl Crab tree follows: 



Ft. In. 



Limestone, shaly, fossiliferous 



Limestone, hard, fossiliferous 



Limestone, shaly, fossiliferous f Lower Mercer j . . 3 



Limestone, hard, fossiliferous J [ 1 8 



Shalejwith coal bands 6 



Coal, bony, Middle Mercer 8 



Sandstone 10 



Clay, siliceous 1 6 



Sandstone, shaly 4 10 



Shale, dark blue 7 6 



Ore, kidney 2 



Shale, dark, siliceous, fossiliferous \ Boggs / 4 



Limestone, dark gray, fossiliferous j \ 1 3 



Shale with thin coal bands 2 



Clay, light, siliceous 3 



34 



