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.
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.
Periarchus lyelli, partial test in matrix
Bob Campbell Geology Museum Formation: Tupelo Bay Formation.