STRATIGRAPHY OF FOSSILIFEROUS MEMBERS 105 



Section along the small eastern tributary of the North Branch of Symmes 

 Creek, Madison Township, Muskingum County 



Allegheny formation Feet Inches 



Limestone, blue, fossiliferous "1 f 1 1 



Shale, with ore nodules ? Putnam Hill < 4 



Limestone, gray, fossiliferous J [ 3 10 



Shale _ 2 



Coal 1 f 1 



Shale > Brookville I __ 1 



' Coal J [.. 10 



Pottsville formation 



Clay, light 2 



Covered 13 



Sandstone, shaly 18 



Shale and covered 3 



Flint, black, irregular, fossiliferous_..| Upper M ercer / 3 

 Limestone, flinty, very fossiliferous__J \ 



Limestone, flinty, very fossiliferous- _J I 2 3 



Shale __ 1 



Coal, bony 1 f. _ 5 



Shale > Bedford I __ 2 



Coal, bony . J [ 1 2 



Clay, siliceous 5 



The lists of fossils below include the species collected from this 

 locality: 



FOSSILS FROM THE UPPER MERCER LIMESTONE AND FLINT 



Fusulina secalica (Say) 



Girtyina ventricosa (Meek and Hayden) 



Crinoid segments 



Fenestella limbata Foerste 



Fenestella sp. 



Septopora biserialis (Swallow) 



Septopora biserialis var. gracilis (Meek) 



Rhombopora lepidodendroidea Meek 



Prismopora sereata (Meek) 



Lingula carbonaria Shumard 



Derby a crassa (Meek and Hayden) 



Chonetes mesolobus Norwood and Pratten 



Productus cora d'Orbigny 



Productus semireticulatus (Martin) 



Pustula nebraskensis (Owen) 



Marginifera muricata var. missouriensis Girty 



Marginifera wabashensis (Norwood and Pratten) 



Spiriferina kentuckyensis (Shumard) 



Spirifer cameratus Morton 



Spirifer opimus Hall 



Squamularia perplexa (McChesney) 



Composita subtilita (Hall) 



