Malacostraca Latreille, 1802
Acanthaspidiidae Menzies, 1962
Actaeciidae Vandel, 1952
Aegidae White, 1850
Afrophiloscia Taiti & Ferrara, 1980
Agnaridae Schmidt, 2003
Alloniscidae Schmidt, 2003
Amphisopidae Nicholls, 1943
Amphisopodidae Nicholls, 1943
Ancinidae Dana, 1852
Anhelkocephalon
Antarcturidae Poore, 2001
Antheluridae Poore & Lew Ton, 1988
Anthuridae Leach, 1814
Antroniscus Mulaik, 1960
Anuropidae Stebbing, 1893
Archaeosphaeroma Novák, 1872
Archeoniscidae
Arctasellus Henry & Magniez, 1995
Arcturidae Dana, 1849
Arcturididae Poore, 2001
Armadillidae Brandt, 1831
Armadillidiidae Brandt, 1833
Aryballurops Gamo, 1983
Aschismatius Verhoeff, 1942
Asconiscidae Bonnier, 1900
Asellidae Latreille, 1802
Atlantasellidae Sket, 1979
Atlantidiidae Arcangeli, 1954
Atlantidium Arcangeli, 1935
Austrarcturellidae Poore & Bardsley, 1992
Austrorgathona
Balloniscidae Vandel, 1963
Barybrotidae Hansen, 1890
Basserolidae Brandt & Poore, 2003
Bathynataliidae Kensley, 1978
Bathytropidae Vandel, 1952
Berytoniscidae Vandel, 1973
Bilawrencia Vandel, 1973
Bopyridae Rafinesque-Schmaltz, 1815
Brasilocellio Verhoeff, 1941
Brevipleonida Gnanamuthu, 1954
Buddelundiellidae Verhoeff, 1930
Buddelundiscus
Cabiropidae Giard & Bonnier, 1887
Cabiropsidae
Calabozoidae Van Lieshout, 1983
Capitoniscus Bourdon, 1972
Carocryptus Schultz, 1977
Cercocytonus Budde-Lund, 1885
Chaetiliidae Dana, 1849
Cirolanidae Dana, 1852
Cirolaniidae
Colypuridae Richardson, 1905
Corallanidae Hansen, 1890
Costasignum George, 2003
Cretodillium Vandel, 1957
Crinoniscidae Bonnier, 1900
Cryptocisus Schultz, 1977
Cryptocotitus Schultz, 1977
Cryptoniscidae Kossmann, 1880
Cryptothiridae Sars, 1883
Cyclosphaeroma Woodward, 1890
Cylisticidae Verhoeff, 1949
Cymatoga
Cymothoidae Leach, 1814
Cyphonicellus
Cyproniscidae Bonnier, 1900
Dajidae G. O. Sars, 1882
Debodea Hiller, 1999
Delatorreia Boone, 1934
Delatorreidae Verhoeff, 1938
Dendrotiidae Vanhöffen, 1914
Dendrotionidae Vanhöffen, 1914
Dentigeroniscus
Desmarestia Nicolet, 1849
Desmosomatidae Sars, 1899
Detonidae Budde-Lund, 1906
Dubioniscidae Schultz, 1995
Duslenia Levi, 1950
Echinothambematidae Menzies, 1956
Elioserolis Basso & Tintori, 1995
Elocryptus Schultz, 1977
Entoniscidae Kossmann, 1881
Eocopea Iverson & Chivers, 1984
Eosphaeroma Woodward, 1879
Epironiscellus Strouhal, 1955
Estereloniscus Vandel, 1943
Eubelidae Budde-Lund, 1904
Exacanthaspidia Menzies & Schultz, 1968
Expanathuridae Poore, 2001
Ferreniscus Calzada & Urquio, 1994
Formososcia Verhoeff, 1928
Geolligia
Gerutha
Gnathiidae Leach, 1814
Gnathostenetroidae
Gnathostenetroididae Kussakin, 1967
Gorgoniscus Grygier, 1981
Guineodillo Verhoeff, 1942
Hadromastacidae Bruce & Müller, 1991
Halophilosciidae Verhoeff, 1908
Haplomunnidae Wilson, 1976
Haploniscidae Hansen, 1916
Haplophiloscia Schultz, 1973
Hekelidae Ferrara, 1977
Helenoscia Vandel, 1977
Hellenonethes Frankenberger, 1939
Hemioniscidae Bonnier, 1900
Henopomus Krøyer, 1847
Hesslerella Schram, 1970
Heterospaeroma
Holidoteidae Wägele, 1989
Holognathidae G. Thomson, 1904
Hypsimetopidae Nicholls, 1943
Hypsimetopodidae Nicholls, 1943
Hyssuridae Wägele, 1981
Ianthe
Idoteidae Samouelle, 1819
Irmaosidae Ferrara & Taiti, 1983
Ischnomesidae Hansen, 1916
Isopodites
Itea Koch, 1838
Jaerella Richardson, 1911
Janirellidae Menzies, 1956
Janiridae Sars, 1897
Janthurella Kusakin, 1982
Japanosignum George, 2003
Japononiscus
Joeropsididae Nordenstam, 1933
Jolanthe
Katianiridae Svavarsson, 1987
Keuphyliidae Bruce, 1980
Kisuma Budde-Lund, 1912
Koshiniscus Nunomura, 1990
Kurilosignum George, 2003
Leptanthuridae Poore, 2001
Ligiidae Leach, 1814
Limnoriidae White, 1850
Macrostylidae Hansen, 1916
Maresia
Melanesillo Verhoeff, 1938
Meoniscidae Verhoeff, 1908
Mesamphisopidae Nicholls, 1943
Mesoniscidae Verhoeff, 1908
Mesosignidae Schultz, 1969
Mesostenus
Metaponothus
Microcerberidae Karaman, 1933
Microniscidae Giard & Bonnier, 1887
Microniscus Dollfus, 1890
Microparasellidae Karaman, 1933
Mictosomatidae Wolff, 1965
Miratidotea
Mormomunna Vanhöffen, 1914
Munnidae Sars, 1897
Munnopsidae Lilljeborg, 1864
Myrmicellio Verhoeff, 1942
Nagara
Nalocryptus Schultz, 1977
Namiboniscus Schmidt, 2001
Nannoniscidae Hansen, 1916
Neoectias Winkler, 1992
Neritoniscus Schultz, 1977
Nesolidium Verhoeff, 1942
Nococryptus Schultz, 1977
Olibrinidae Vandel, 1973
Olincera W.E. Leach
Oniscidae Latreille, 1802
Onocryptus Schultz, 1977
Osicryptus Schultz, 1977
Palaeophreatoicus Birstein, 1962
Paracanthaspidia Menzies & Schultz, 1968
Paracubaris Collinge, 1918
Paramunnidae Vanhöffen, 1914
Paranthuridae Menzies & Glynn, 1968
Pararmadillo
Parasellidae
Parasphaeroniscus
Parsphaeroniscus
Patagoniscus
Periscyphicidae Ferrara, 1973
Pherusa Leach, 1814
Philosciidae Kinahan, 1857
Phoratopodidae Hale, 1925
Phreatoicidae Chilton, 1891
Phreatoicopsidae Nicholls, 1943
Phreatoicopsididae
Plakarthriidae Hansen, 1905
Platyarthridae Vandel, 1946
Platyburmoniscus Schmidt, 2000
Pleuracantha Sars, 1864
Pleurocopidae Fresi & Schiecke, 1972
Podasconidae Bonnier, 1900
Ponderellidae Wilson & Keable, 2004
Porcellidium Verhoeff, 1907
Porcellionidae Brandt, 1831
Potrerillo de Armas & Juarrero de Varona, 1999
Proischioscia
Protognathiidae Wägele & Brandt, 1988
Protojaniridae Fresi, Idato & Scipione, 1980
Protosphaeroma Bachmayer, 1949
Protourda Mezzalira & Martins-Neto, 1992
Pseudarmadillidae Vandel, 1973
Pseudidotheidae Ohlin, 1901
Pseudoasellus
Pseudojaniridae Wilson, 1986
Pseudomesidae
Pseudopalaega Mezzalira & Martins-Neto, 1992
Pudeoniscidae Lemos de Castro, 1973
Reboursia Guinot, Wilson & Schram, 2005
Rectarcturidae Poore, 2001
Rhabdochiridae Richardson, 1905
Rhacura Richardson, 1908
Rhinoryctes Stuxberg, 1875
Rhyscotidae Budde-Lund, 1908
Roraimoscia Leistikow, 2001
Santiidae Wilson, 1987
Schistosoma
Schoebliidae Verhoeff, 1938
Schweglerella Polz, 1998
Scleropactidae Verhoeff, 1938
Scyphacidae Dana, 1852
Serolidae Dana, 1852
Spelaeoniscidae Vandel, 1948
Sphaerillo
Sphaeromatidae Latreille, 1825
Sphaeroniscidae Vandel, 1964
Squilloides Tchindono & Tchesun, 1993
Stenasellidae Dudich, 1924
Stenetriidae Hansen, 1905
Stenoniscidae Budde-Lund, 1904
Strigoproavus Schollmann, 1993
Stygonectes
Styloniscidae Vandel, 1952
Tainisopidae Wilson, 2003
Tecticipitidae Bruce, 1993
Tendosphaeridae Verhoeff, 1930
Termitoniscus Silvestri, 1918
Thambematidae Stebbing, 1913
Titaniidae Verhoeff, 1938
Tole Ortmann, 1901
Trachelipodidae Strouhal, 1953
Triassphaeroma Basso & Tintori, 1995
Trichoniscidae Sars, 1899
Trichopleon Beddard, 1886
Tridentellidae Bruce, 1984
Trisopodoniscus Bourdon, 1981
Tropethelum Verhoeff, 1942
Tuberdillo
Turanoniscidae Borutzkii, 1969
Tylidae Dana, 1852
Typhloschizidium Arcangeli, 1933
Unusuropode Duarte & Silva Santos, 1962
Urda Münster, 1840
Urias Richardson, 1911
Vermectiadidae Just & Poore, 1992
Xenarcturidae Sheppard, 1957
Xenosellidae Just, 2005
Xostylus Menzies, 1962