Catalog Number: CG-0044
Described by Hall in 1852, specimens have been found from the Brush Creek Limestone and Ames Limestone of Ohio. I have found a large number of specimens here in Parks Township, and this is one of the best ones to date. Both sides of the specimen are detailed and it is nearly complete. Some examples are compressed along the shell lines, this one was more natural.
These are the largest bivalves that you can reasonably find locally. There may be larger ones, but they are assumed to be broken or unidentifiable.