Rafinesquina aff. ponderosa, brachial valve in matrix
Bob Campbell Geology Museum Formation: Cincinnatian Series.
Rafinesquina aff. ponderosa, isolated valves in matrix
Bob Campbell Geology Museum Formation: Cincinnatian Series.
Rafinesquina aff. ponderosa, articulated specimen, brachial and pedicle valves
Bob Campbell Geology Museum Formation: Cincinnatian Series.