Phalium granulatum, snail shell with low pointed spire and inflated body whorl
Bob Campbell Geology Museum
Pharkidonotus percarinatus, globular planispiral shell, bilateral symmetry
Bob Campbell Geology Museum Formation: Graham Formation; Wayland shale member.
Pharkidonotus percarinatus, globular, planispiral shell, bilateral symmetry strong ridge down the center
Bob Campbell Geology Museum Formation: Graham Formation; Wayland shale member.
Phymatopleura brazoensis, conical high-spired shell with a shallow sinus on the outer lip
Bob Campbell Geology Museum Formation: Graham Formation; Wayland shale member.
Platyceras parvum, three shells
Bob Campbell Geology Museum Formation: Plattsburg Limestone; Member: Spring Hill Limestone.
Platyceras sp., three small steinkerns representing internal casts of the shell
Bob Campbell Geology Museum Formation: Lime Creek Formation.
Polinias heros, numerous low-spired shells
Bob Campbell Geology Museum Formation: Eastover Formation.
Polinices duplicatus, nearly spherical shell, very low almost flat spire, body whorl is large and round
Bob Campbell Geology Museum Formation: Fort Thompson Formation.
Polinices sp., two large almost spherical shells
Bob Campbell Geology Museum Formation: Etchegoin Formation.
Pseudelvia perspecitiva, two shells, generally ovate with rounded whorls
Bob Campbell Geology Museum Formation: Stone City Formation.