Ptychagnostus sp., elrathia kingii wheeler shale
Bob Campbell Geology Museum Formation: Wheeler Shale.
Purple sea urchin test (Strongylocentrotus purpuratus)
Bob Campbell Geology Museum Modern; Donated: Z. Zuber.
Pycnodonte trigonalis, articulated specimen
Bob Campbell Geology Museum Formation: Harleyville Formation.
Pycnodonte trigonalis, associated right and left valves
Bob Campbell Geology Museum Formation: Harleyville Formation.
Rabbit (Palaeolagus sp.)
Bob Campbell Geology Museum 33 million years old; Formation: Brule Formation.
Rafinesquina aff. ponderosa, articulated specimen, brachial and pedicle valves
Bob Campbell Geology Museum Formation: Cincinnatian Series.
Rafinesquina aff. ponderosa, brachial valve in matrix
Bob Campbell Geology Museum Formation: Cincinnatian Series.
Rafinesquina aff. ponderosa, isolated valves in matrix
Bob Campbell Geology Museum Formation: Cincinnatian Series.
Rafinesquina cf. ponderosam, pedicle valve
Bob Campbell Geology Museum Formation: Cincinnatian Series.
Rafinesquina sp., isolated valves in matrix
Bob Campbell Geology Museum Formation: McMillan Formation.
Rail-like bird (Songzia heidangkouensis)
Bob Campbell Geology Museum 50 million years old; Formation: Yangxi Formation; Donated: R.S. Campell.
Rajiformes batoid, two incomplete caudal spines
Bob Campbell Geology Museum Formation: Clinchfield Formation.
Ray (Myliobatiformes batoid), four medial teeth
Bob Campbell Geology Museum Formation: Clinchfield Formation.
Ray (Myliobatiformes batoid), isolated lateral tooth
Bob Campbell Geology Museum Formation: Clinchfield Formation.
Ray, 12 fragments of caudal fin spines
Bob Campbell Geology Museum Formation: Clinchfield Formation.
Ray-finned fish (Cylindracanthus rectus), rostrum fragment
Bob Campbell Geology Museum Formation: Tupelo Bay Formation.
Reticulatia (Dictyoclostus) Bassi, pedicle valve
Bob Campbell Geology Museum Formation: Moran Formation; Horse Creek Limestone.
Reticulatia americanus, articulated specimen
Bob Campbell Geology Museum Formation: Harpersville Formation; Bellknap Ls. Member.
Reticulatia sp., four specimens in matrix
Bob Campbell Geology Museum Formation: Altamont Limestone; Member: Amoret Limestone.
Reticulatia sp., three crushed articulated specimens
Bob Campbell Geology Museum Formation: Plattsburg Limestone; Member: Spring Hill Limestone.
Reticulatia sp., three crushed specimens
Bob Campbell Geology Museum Formation: Altamont Limestone; Member: Amoret Limestone.
Reticulatia sp., two pedicle valves
Bob Campbell Geology Museum Formation: Altamont Limestone; Member: Amoret Limestone.
Rhacolepis buccalis, extinct fish
Bob Campbell Geology Museum 110 million years old; Formation: Santana Formation.
Rhinoptera sp., isolated medial dental plate
Bob Campbell Geology Museum Formation: Clinchfield Formation.
Rhinoptera sp., seven medal teeth, one lateral
Bob Campbell Geology Museum Formation: Harleyville Formation.
Rhyncholampas carolinensis, the small test has an oval outline in plain view
Bob Campbell Geology Museum Formation: Santee Limestone.
Rhyncholampas gouldii, three tests with roughly circular outline
Bob Campbell Geology Museum Formation: Ocala Limestone.
Rutaceae sp. citrus fruit
Bob Campbell Geology Museum 62 million years old; Formation: Fort Union Formation.
Santeevoluta wilmingtonensis, partial steinkern
Bob Campbell Geology Museum Formation: Tupelo Bay Formation.
Santeevoluta wilmingtonensis, partial steinkern
Bob Campbell Geology Museum Formation: Santee Limestone.
Santeevoluta wilmingtonensis, partial steinkern
Bob Campbell Geology Museum Formation: Tupelo Bay Formation.
Santeevoluta wilmingtonensis, phosphate replaced shell
Bob Campbell Geology Museum Formation: Tupelo Bay Formation.
Santeevoluta wilmingtonensis, two phosphate replaced shells
Bob Campbell Geology Museum Formation: Tupelo Bay Formation.
Sawfish (Pristidae), rostrum fragments
Bob Campbell Geology Museum Formation: Harleyville Formation.
Scabrotrigonia eufaulensis, articulated valves
Bob Campbell Geology Museum Formation: Peedee Formation.
Scabrotrigonia eufaulensis, four rock fragments with valve casts
Bob Campbell Geology Museum Formation: Peedee Formation.
Scabrotrigonia eufaulensis, two rock fragments with valve casts
Bob Campbell Geology Museum Formation: Peedee Formation.
Scaphella mutabilis, 14 elongated high-spired shells
Bob Campbell Geology Museum Formation: Eastover Formation.
Schizodus alpina, articulated right and left valves
Bob Campbell Geology Museum Formation: Graham Formation; Wayland shale mem.
Sea Urchin (Hardounia cf. florealis)
Bob Campbell Geology Museum 72 million years old; Donated: The Duncan Family.
Sea biscuit (Rhyncholampas carolinensis)
Bob Campbell Geology Museum Formation: Santee Limestone; Donated: Janice Lay.
Sea lily - crinoid (Forbesiocrinus multibrachiatus)
Bob Campbell Geology Museum 350 million years old; Formation: Edwardsville Formation; Donated: R.S. Campbell.