Rhyncholampas carolinensis, the small test has an oval outline in plain view
Bob Campbell Geology Museum Formation: Santee Limestone.
Harduinia mortonis, echnoid test with circular outline
Bob Campbell Geology Museum Formation: Peedee Formation.
Sea Urchin (Hardounia cf. florealis)
Bob Campbell Geology Museum 72 million years old; Donated: The Duncan Family.
Wythella eldridgei, test of weldridgei assoc. with oligopygus harlani
Bob Campbell Geology Museum Formation: Ocala Limestone.
Encope aff. Macrophora, dorso-ventrally flattened specimen
Bob Campbell Geology Museum Formation: Eastover Formation.
Linthia harmatuki, very large test - only the ventral portion is well preserved
Bob Campbell Geology Museum Formation: Santee Limestone.
Rhyncholampas gouldii, three tests with roughly circular outline
Bob Campbell Geology Museum Formation: Ocala Limestone.
Wythella eldridgei, 32 echinoid tests, very thin, oval outline
Bob Campbell Geology Museum Formation: Ocala Limestone.
Encope tamiamiensis, two tests with roughly circular outlines
Bob Campbell Geology Museum Formation: Tamiami Formation.