Kingdom Animalia Linnaeus, 1758 - animals
Phylum Echinodermata Bruguière, 1789 - echinoderms
Subphylum Eleutherozoa Bell, 1891
Class Echinoidea (Leske, 1778) - sea urchins and sand dollars
Subclass Euechinoidea Bronn, 1860
Superorder Diadematacea (Duncan, 1889)
Genus Aspidodiadema Agassiz, 1878
Genus Caenopedina Agassiz, 1869
Genus Diadema Gray, 1825, nom. cons.