Diaphragmus cestriensis, two pedicle valves
Bob Campbell Geology Museum Formation: Hartsella Sandstone.
Anthracospirifer increbescensis, three articulated specimens
Bob Campbell Geology Museum Formation: Hartsella Sandstone.
Theodossia hungerfordi, articulated valves
Bob Campbell Geology Museum Formation: Cerro Gordo Shale.
Hebertella occidentalis, brachiopods in matrix
Bob Campbell Geology Museum Formation: Fairview Formation.
Composita sp., two crushed, articulated specimens
Bob Campbell Geology Museum Formation: Hartsella Sandstone.
Terebratulina sp., seven articulated specimens
Bob Campbell Geology Museum Formation: Santee Limestone.
Anthracospirifer increbescensis, articulated specimen in matrix
Bob Campbell Geology Museum Formation: Hartsella Sandstone.
Nervostrophia sp., articulated specimen
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Cyrtospirifer whitneyi, articulated valves
Bob Campbell Geology Museum Formation: Cerro Gordo Shale.
Terebratulina sp., two articulated specimens
Bob Campbell Geology Museum Formation: Santee Limestone.
Terebratulina sp., four articulated specimens
Bob Campbell Geology Museum Formation: Santee Limestone.
Platystrophia ponderosa, brachiopods in matrix
Bob Campbell Geology Museum Formation: McMillan Formation.
Patystrophia ponderosa, brachiopods in matrix
Bob Campbell Geology Museum Formation: McMillan Formation.
Terebratulina sp., five articulated specimens
Bob Campbell Geology Museum Formation: Santee Limestone.
Patystrophia ponderosa, brachiopods in matrix
Bob Campbell Geology Museum Formation: McMillan Formation.
Composita subtilita, six articulated specimens
Bob Campbell Geology Museum Formation: Topeka Limestone.
Terebratulina sp., two articulated specimens
Bob Campbell Geology Museum Formation: Santee Limestone.
Terebratulina sp., four articulated brachiopods
Bob Campbell Geology Museum Formation: Santee Limestone.
Platystrophia clarkensis, articulated specimen
Bob Campbell Geology Museum Formation: Bull Fork Formation.
Terebratulina sp., five articulated specimens
Bob Campbell Geology Museum Formation: Santee Limestone.
Cyrtina inulata, two articulated specimens
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Cyrtina sp., pedicle valve and crushed specimen
Bob Campbell Geology Museum Formation: Hartsella Sandstone.
Spinatrypa sp., seven articulated specimens
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Sulcatostrophia sp., brachiopods in matrix
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Rafinesquina sp., isolated valves in matrix
Bob Campbell Geology Museum Formation: McMillan Formation.
Cyrtina iowensis, three articulated specimens
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Reticulatia americanus, articulated specimen
Bob Campbell Geology Museum Formation: Harpersville Formation; Bellknap Ls. Member.
Marginifera lasallensis, articulated valves
Bob Campbell Geology Museum Formation: Graham Formation; Wayland shale member.
Sulcatostrophia camerata, two articulated speciments
Bob Campbell Geology Museum Formation: Lime Creek Formation.