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.