It looks like a crushed phragmocone. I can't make out the siphuncle so an ID is hard to guess. Just from the close spaced septa I would say Ellsmereocerid
The Ordovician rocks in Tennessee are surprisingly like those here in Utah, looks like it was probably the same kind of environment in both places back then. Thanks for posting your finds.
The Ordovician rocks in Tennessee are surprisingly like those here in Utah, looks like it was probably the same kind of environment in both places back then. Thanks for posting your finds.