Arachnocrinus sp., partial articulated arms of a crinoid calys.
Bob Campbell Geology Museum Formation: Onandaga Limestone.
Astrodaspis tumidus, dorso-ventrally falthead specimen
Bob Campbell Geology Museum Formation: Eastover Formation.
Blastoid (Pentremites godoni)
Bob Campbell Geology Museum 325 million years old; Formation: Paint Creek Formation.
Brittle star (Ophiuroidea sp.)
Bob Campbell Geology Museum 450 million years old; Formation: Kataoua Formation.
Crinoid (Crinoidea spp.), 18 stem fragments
Bob Campbell Geology Museum Formation: Winfield Formation.
Crinoid (Crinoidea) three calyx spines (unassociated)
Bob Campbell Geology Museum Formation: Monteagle Limestone.
Crinoid (Crinoidea), 10 partial stems
Bob Campbell Geology Museum Formation: Altamont Limestone; Member: Amoret Limestone.
Crinoid (Crinoidea), 22 unassociated calyx plates
Bob Campbell Geology Museum Formation: Monteagle Limestone.
Crinoid (Crinoidea), 25 portions of crinoid stems
Bob Campbell Geology Museum Formation: Monteagle Limestone.
Crinoid (Crinoidea), incomplete stem in matrix
Bob Campbell Geology Museum Formation: Altamont Limestone; Member: Amoret Limestone.
Crinoid (Crinoidea), partial stems
Bob Campbell Geology Museum Formation: Plattsburg Limestone; Member: Spring Hill Limestone.
Crinoid (Crinoidea), stem fragments
Bob Campbell Geology Museum Formation: Plattsburg Limestone; Member: Spring Hill Limestone.
Crinoid (Endelocrinus sp.)
Bob Campbell Geology Museum 287 million years old; Formation: Lecompton Limestone; Donated: Andy Epton.
Crinoid (Jimbacrinus bostoki) sea lily
Bob Campbell Geology Museum 260 million years old; Formation: Cundlego Formation.
Crinoid stem coquina (Platycrinus penicillus)
Bob Campbell Geology Museum 330 million years old; Formation: St. Genevieve Formation.
Crinoid stem coquina (Talarocrinus simplex)
Bob Campbell Geology Museum 350 million years old; Formation: Salem & Warsaw Formation.
Delocrinus cf. subhemisphericus, isolated radial
Bob Campbell Geology Museum Formation: Harpersville Formation; Belknap Ls. Mbr.
Delocrinus cf. subhemisphericus, isolated radial
Bob Campbell Geology Museum Formation: Harpersville Formation; Belknap Ls. Mbr.
Delocrinus cf. subhemisphericus, two spinous plates
Bob Campbell Geology Museum Formation: Harpersville Formation; Belknap Ls. Mbr.
Dendraster gibsii, 7 isolated tests and one cluster of 4
Bob Campbell Geology Museum Formation: Etchegoin Formation.
Echinocrinus aculeata, isolated plate of an echinoid test
Bob Campbell Geology Museum Formation: Grenola Limestone.
Enallaster texanus, complete test
Bob Campbell Geology Museum Formation: Fredericksburg Formation; Goodland Ls. Mbr.
Enallaster texanus, complete test
Bob Campbell Geology Museum Formation: Fredericksburg Formation; Goodland Ls. Mbr.
Encope aff. Macrophora, dorso-ventrally flattened specimen
Bob Campbell Geology Museum Formation: Eastover Formation.
Encope tamiamiensis, two tests with roughly circular outlines
Bob Campbell Geology Museum Formation: Tamiami Formation.
Eupatagus antellarium, test is longer than wide with oval outline
Bob Campbell Geology Museum Formation: Ocala Limestone.
Eurhodia rugosa, three large, anero-posteriorly elongate tests
Bob Campbell Geology Museum Formation: Santee Limestone.
Eurhodia rugosa, two antero-posteriorly elongate tests
Bob Campbell Geology Museum Formation: Santee Limestone.
Harduinia mortonis, echnoid test with circular outline
Bob Campbell Geology Museum Formation: Peedee Formation.
Hydreinocrinus sp., stem section
Bob Campbell Geology Museum Formation: Harpersville Formation; Belknap Ls. Mbr.
Linthia harmatuki, very large test - only the ventral portion is well preserved
Bob Campbell Geology Museum Formation: Santee Limestone.
Oligopygus haldermani, 22 echinoid tests, oval circular outline
Bob Campbell Geology Museum Formation: Ocala Limestone.
Pentacrinus asteriscus, 16 stem segments consisting of several fused columnals
Bob Campbell Geology Museum Formation: Sundance Formation.
Pentremites sp., crushed, incomplete specimen in matrix
Bob Campbell Geology Museum Formation: Monteagle Limestone.
Periarchus lyelli, partial test in matrix
Bob Campbell Geology Museum Formation: Tupelo Bay Formation.
Phymosoma texanum, complete test
Bob Campbell Geology Museum Formation: Fredericksburg Formation; Goodland Ls.
Purple sea urchin test (Strongylocentrotus purpuratus)
Bob Campbell Geology Museum Modern; Donated: Z. Zuber.
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.
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.