Platyceras sp., three small steinkerns representing internal casts of the shell
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Snail (Gastropod), portion of gastropod partially exposed in fragment of limestone
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Zaphrentis sp., three incomplete corals, conical, wide cir. calyx
Bob Campbell Geology Museum Formation: Citronelle Formation.
Sulcatostrophia sp., brachiopods in matrix
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Gastropod, partial snail that is high-spired and loosely coiled
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Trilobite (Dicranurus monstrosus)
Bob Campbell Geology Museum 380 million years old; Formation: Megrane Formation.
Grunewaldtia americana, 12 isolated valves and articulated shells
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Theodossia hungerfordi, articulated valves
Bob Campbell Geology Museum Formation: Cerro Gordo Shale.
Arachnocrinus sp., partial articulated arms of a crinoid calys.
Bob Campbell Geology Museum Formation: Onandaga Limestone.
Cyrtospirifer cf. plicatus, 11 articulated specimens and isolated valves
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Sulcatostrophia camerata, seven isolated pedicle valves, one articulated shell
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Cyrtina iowensis, three articulated specimens
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Mediospirifer (Brachyspiriter) audaculus, two articulated specimens
Bob Campbell Geology Museum Formation: Moscow Formation; Windom Sh. Mbr.
Heterophrentis sp., short, curving conical corals
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Productella sp., 15 articulated shells and isolated valves
Bob Campbell Geology Museum Formation: Lime Creek Formation.