Achramorphidae Borojevic, Boury-Esnault, Manuel & Vacelet, 2002 (habitat flag source)
Acrotretida (awaiting allocation) (habitat flag source)
Agnathiellidae Sterrer, 1972 (habitat flag source)
Aplysellidae accepted as Aplysinellidae Bergquist, 1980 (habitat flag source)
Aplysillidae Lendenfeld, 1883 accepted as Darwinellidae Merejkowsky, 1879 (habitat flag source)
Aristocystitida (awaiting allocation) † (habitat flag source)
Ascocystitida (awaiting allocation) † (habitat flag source)
Aspidosiphonidae Baird, 1868 (habitat flag source)
Asteroidea (awaiting allocation) (habitat flag source)
Astrophorida (awaiting allocation) (habitat flag source)
Atrypida (awaiting allocation) † (habitat flag source)
Aulocystidae Sollas, 1887 (habitat flag source)
Austrognathiidae Sterrer, 1971 (habitat flag source)
Baeriidae Borojevic, Boury-Esnault & Vacelet, 2000 (habitat flag source)
Barroisiidae † (habitat flag source)
Biemnidae Hentschel, 1923 (habitat flag source)
Botryosellidae † accepted as Euretidae Zittel, 1877 (habitat flag source)
Burgundiidae Dehorne, 1920 † (habitat flag source)
Calcarea (awaiting allocation) (habitat flag source)
Calcifibrospongiidae Hartman, 1979 (habitat flag source)
Calyptrellidae † (habitat flag source)
Camaroidea (awaiting allocation) † (habitat flag source)
Choanitidae accepted as Suberitidae Schmidt, 1870 (habitat flag source)
Chondrosiidae Schulze, 1887 (habitat flag source)
Cladida (awaiting allocation) † (habitat flag source)
Clausognathiidae Sterrer, 1992 (habitat flag source)
Coeloptychiidae † (habitat flag source)
Crustoidea (awaiting allocation) † (habitat flag source)
Cypelliidae Schrammen, 1937 † (habitat flag source)
Cystoidea (awaiting allocation) † (habitat flag source)
Cystothalamiidae Girty, 1908 † (habitat flag source)
Cytoraceidae † (habitat flag source)
Desmacidonidae Gray, 1872 accepted as Desmacididae Schmidt, 1870 (habitat flag source)
Desmophorida (awaiting allocation) (habitat flag source)
Diapleuridae Ijima, 1927 (habitat flag source)
Dichoporita (awaiting allocation) † (habitat flag source)
Disparida (awaiting allocation) † (habitat flag source)
Druinellidae Lendenfeld, 1889 accepted as Pseudoceratinidae Carter, 1885 (habitat flag source)
Echinocystitoida (awaiting allocation) † (habitat flag source)
Echmatocrinida (awaiting allocation) † (habitat flag source)
Edrioasteroidea (awaiting allocation) † (habitat flag source)
Eocrinoidea (awaiting allocation) † (habitat flag source)
Euryponidae (habitat flag source)
Filospermoidea (awaiting allocation) (habitat flag source)
Gnathostomariidae Sterrer, 1972 (habitat flag source)
Gnathostomulidae Sterrer, 1972 (habitat flag source)
Golfingiidae Stephen & Edmonds, 1972 (habitat flag source)
Halichondridae accepted as Halichondriidae Gray, 1867 (habitat flag source)
Haplognathiidae Sterrer, 1972 (habitat flag source)
Hemidiscosa (awaiting allocation) † (habitat flag source)
Heteractinida (awaiting allocation) † (habitat flag source)
Hexactinellida (awaiting allocation) (habitat flag source)
Holothuriae (awaiting allocation) (habitat flag source)
Holothuroidea (awaiting allocation) (habitat flag source)
Homoiostelea (awaiting allocation) † (habitat flag source)
Hormograptidae Bulman, 1970 † (habitat flag source)
Hybocrinida (awaiting allocation) † (habitat flag source)
Hymeniacidonidae de Laubenfels, 1936 accepted as Halichondriidae Gray, 1867 (habitat flag source)
Imbricata (awaiting allocation) † (habitat flag source)
Jereopsidae † accepted as Jereopsiidae de Laubenfels, 1955 † (habitat flag source)
Leiodermatiidae Lendenfeld, 1903 accepted as Azoricidae Sollas, 1888 (habitat flag source)
Lelapiellidae Borojevic, Boury-Esnault & Vacelet, 1990 (habitat flag source)
Lepidoleuconidae Vacelet, 1967 (habitat flag source)
Leucettidae de Laubenfels, 1936 (habitat flag source)
Leucopsacadidae (habitat flag source)
Lingulida (awaiting allocation) (habitat flag source)
Lychniskida (awaiting allocation) † (habitat flag source)
Mesognathariidae Sterrer, 1972 (habitat flag source)
Milliporellidae † (habitat flag source)
Milliporidiidae † (habitat flag source)
Monobathrida (awaiting allocation) † (habitat flag source)
Monoraphididae (habitat flag source)
Monorhaphididae Ijima, 1927 (habitat flag source)
Murrayonidae Dendy & Row, 1913 (habitat flag source)
Neocoeliidae accepted as Verticillitidae Steinmann, 1882 (habitat flag source)
Nucleocrinida (awaiting allocation) † (habitat flag source)
Onychognathiidae Sterrer, 1972 (habitat flag source)
Ophiocistioidea (awaiting allocation) † (habitat flag source)
Ophiraphiditidae † (habitat flag source)
Orthida (awaiting allocation) † (habitat flag source)
Oscarellidae Lendenfeld, 1887 (habitat flag source)
Pachynionidae † (habitat flag source)
Palaechinoida (awaiting allocation) † (habitat flag source)
Parablastida (awaiting allocation) † (habitat flag source)
Paramurrayonidae Vacelet, 1967 (habitat flag source)
Parastromatoporoidae † (habitat flag source)
Paucidentulidae Sterrer, 1998 (habitat flag source)
Pentamerida (awaiting allocation) † (habitat flag source)
Petrobionidae Borojevic, 1979 (habitat flag source)
Phascolionidae E. Cutler & Gibbs, 1985 (habitat flag source)
Phascolosomatidae Stephen & Edmonds, 1972 (habitat flag source)
Phormosomatidae Mortensen, 1934 (habitat flag source)
Phymatellidae Schrammen, 1910 (habitat flag source)
Piraniidae de Laubenfels, 1955 † (habitat flag source)
Platyasterida (awaiting allocation) (habitat flag source)
Platycystitida (awaiting allocation) † (habitat flag source)
Plieolitidae † (habitat flag source)
Plinthosellidae † (habitat flag source)
Plocamiidae (habitat flag source)
Porispongiidae † (habitat flag source)