Ammonite (Didymoceras sp.)
Bob Campbell Geology Museum 73 million years old; Formation: Pierre Shale.
Ammonite (Arietites bucklandi)
Bob Campbell Geology Museum 190 million years old; Formation: Lias Formation.
Cardioceras sp., frags. of two steinkerns and partial impression
Bob Campbell Geology Museum Formation: Sundance.
Belemnite guard (Belemnitella americana)
Bob Campbell Geology Museum 67 million years old; Formation: Peedee Formation.
Nautiloid (Nautiloidea), partial shell in matrix
Bob Campbell Geology Museum Formation: Plattsburg Limestone; Member: Spring Hill Limestone.
Ammonite (Hamites maximus)
Bob Campbell Geology Museum 100 million years old; Formation: Gault Clay Formation.
Ammonite (Sphenodiscus lenticularis)
Bob Campbell Geology Museum 67 million years old; Formation: Fox Hills Sandstone.
Ammonite (Trilacinoceras humanese)
Bob Campbell Geology Museum 450 million years old; Formation: La et Tsi; Donated: H. Abercrombie.
Ammonite (Pleuroceras spinatum)
Bob Campbell Geology Museum 180 million years; Formation: Lias Formation; Donated: H. Abercrombie.
Ammonite (Conlinoceras tarrantense)
Bob Campbell Geology Museum 95 million years old; Formation: Woodbine Formation; Donated: Shawn Hamm.
Eutrephoceras carolinensis, incomplete steinkern, one chamber of a large nautilus
Bob Campbell Geology Museum Formation: Santee Limestone.
Ammonite (Asteroceras stellare)
Bob Campbell Geology Museum 200 million years old; Formation: Frodingham Ironstone; Donated: H. Abercrombie.
Ammonite (Dactylioceras commune)
Bob Campbell Geology Museum 190 million years old; Formation: Witby Mudstone; Donated: H. Abercrombie.
Belemnitella Americana, posterior end of an elongate, narrow conical guard with blunt apex
Bob Campbell Geology Museum
Ammonite (Eopachydiscus marcianus)
Bob Campbell Geology Museum 100 million years old; Formation: Duck Creek Limestone; Donated: Mr. and Mrs. Alvin Gosnell.
Ammonite (Mortaniceras equidistans)
Bob Campbell Geology Museum 100 million years old; Formation: Duck Creek Limestone; Donated: Mr. and Mrs. Alvin Gosnell.