It appears most are Platystrophia ponderosa brachiopods.
Maybe 3 or so (near bottom left corner of image) could be Platystrophia cypha with its high arching like fins in the shell.
Two brachiopods on the far left column and in its middle are probably Hebertella brachiopods with the fine lines on the shell. The Ohio Fossils book (Bulletin 54 from Ohio Geological Survey, 1955) lists 3 species for Hebertella: Hebertella sinuata, Hebertella occidentalis, and Hebertella insculpta.
