Patystrophia ponderosa, brachiopods in matrix
Bob Campbell Geology Museum Formation: McMillan Formation.
Platystrophia clarkensis, articulated specimen
Bob Campbell Geology Museum Formation: Bull Fork Formation.
Platystrophia ponderosa, articulated specimen in matrix
Bob Campbell Geology Museum Formation: McMillan Formation.
Platystrophia ponderosa, brachiopods in matrix
Bob Campbell Geology Museum Formation: McMillan Formation.
Productella sp., 15 articulated shells and isolated valves
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Pseudoatrypa (Atrypa) devoniana, 11 articulated specimens and isolated valves
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Pseudoatrypa devoniana, one pedicle valve, two articulated specimens
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Rafinesquina aff. ponderosa, articulated specimen, brachial and pedicle valves
Bob Campbell Geology Museum Formation: Cincinnatian Series.
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 cf. ponderosam, pedicle valve
Bob Campbell Geology Museum Formation: Cincinnatian Series.
Rafinesquina sp., isolated valves in matrix
Bob Campbell Geology Museum Formation: McMillan Formation.
Reticulatia (Dictyoclostus) Bassi, pedicle valve
Bob Campbell Geology Museum Formation: Moran Formation; Horse Creek Limestone.
Reticulatia americanus, articulated specimen
Bob Campbell Geology Museum Formation: Harpersville Formation; Bellknap Ls. Member.
Reticulatia sp., four specimens in matrix
Bob Campbell Geology Museum Formation: Altamont Limestone; Member: Amoret Limestone.
Reticulatia sp., three crushed articulated specimens
Bob Campbell Geology Museum Formation: Plattsburg Limestone; Member: Spring Hill Limestone.