Holothuroidea de Blainville, 1834
Deimatidae Théel, 1882
Elpidiidae Théel, 1879
Laetmogonidae Ekman, 1926
Mercedescaudina Schallreuter, 1975
Microantyx Kornicker & Imbrie, 1958
Oneirophanites
Palelpidia Mostler, 1968
Pelagothuridae Ludwig, 1894
Pelagothuriidae
Praecaudina
Praeeuphronides Mostler, 1968
Protocaudina Croneis, 1932
Psychropotidae Théel, 1882
Psychroptidae
Tetravirga Frizzell & Exline, 1955
