Ammonite (Agoniatites sp.)
Bob Campbell Geology Museum 350 million years old; Donated: H. Abercrombie.
Theodossia hungerfordi, articulated valves
Bob Campbell Geology Museum Formation: Cerro Gordo Shale.
Nervostrophia sp., articulated specimen
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Cyrtospirifer whitneyi, articulated valves
Bob Campbell Geology Museum Formation: Cerro Gordo Shale.
Trilobite (Dicranurus monstrosus)
Bob Campbell Geology Museum 380 million years old; Formation: Megrane Formation.