| Subclass | Eumalacostraca Grobben, 1892
| 995 11546 91261 | Families Genera Species |
| Subclass | Phyllocarida Packard, 1879
| 18 69 315 | Families Genera Species |
| Order | Waterstonellidea Schram, 1981
| 1 1 1 | Family Genus Species |
| Family | Angustidontidae
| 1 0 | Genus Species |
| Family | Anthidae
| 0 0 | Genera Species |
| Family | Calapidae Box crabs | 0 0 | Genera Species |
| Family | Canadaspididae
| 0 0 | Genera Species |
| Family | Cyphocaridae
| 0 0 | Genera Species |
| Family | Enophthalmidae
| 0 0 | Genera Species |
| Family | Enosellidae
| 0 0 | Genera Species |
| Family | Epialidae
| 0 0 | Genera Species |
| Family | Goniocypodidae
| 1 2 | Genus Species |
| Family | Hypothalassidae
| 0 0 | Genera Species |
| Family | Laomedidae
| 0 0 | Genera Species |
| Family | Leuconiidae
| 0 0 | Genera Species |
| Family | Munopsididae
| 0 0 | Genera Species |
| Family | Palaeocaridae
| 1 1 | Genus Species |
| Family | Paramunidae
| 0 0 | Genera Species |
| Family | Philoniscidae
| 0 0 | Genera Species |
| Family | Potunidae
| 0 0 | Genera Species |
| Family | Squamiferidae
| 0 0 | Genera Species |
| Genus | Acucauda Hobbs, 1972
| 0 | Species |
| Genus | Alytoleucon Wailing, 1991
| 1 | Species |
| Genus | Amphiotopsis
| 1 | Species |
| Genus | Amphipeltis Salter, 1863
| 0 | Species |
| Genus | Anobodillo Schmalfuss & Ferrara, 1983
| 0 | Species |
| Genus | Archiocarabus
| 1 | Species |
| Genus | Ardelia Chamberlain & Baer, 1973
| 0 | Species |
| Genus | Arenosicaris Collette & Hagadorn, 2010
| 1 | Species |
| Genus | Aspockia Pretzmann, 1967
| 0 | Species |
| Genus | Austrocambarus Hobbs, 1972
| 0 | Species |
| Genus | Aviticambarus Hobbs, 1969
| 0 | Species |
| Genus | Basscrolis Poore, 1985
| 0 | Species |
| Genus | Biarticulata Larsen & Shimomura, 2007 ⇒ Leptognathia
| 10 | Species |
| Genus | Billecambarus Fitzpatrick, 1987
| 0 | Species |
| Genus | Brooksyncaris Schram, 1984
| 0 | Species |
| Genus | Buannulifictus Fitzpatrick, 1987
| 0 | Species |
| Genus | Caleidoscopsls Karaman, 1974
| 0 | Species |
| Genus | Camprogammarus Kudrjaschov & Vassilenko, 1966
| 0 | Species |
| Genus | Capillicambarus Hobbs, 1972
| 0 | Species |
| Genus | Cedrophotis Barnard, 1967
| 0 | Species |
| Genus | Cerrorhestia Lindeman, 1990
| 0 | Species |
| Genus | Coralliophaga
| 2 | Species |
| Genus | Coreocaris Kobayashi, 1937
| 0 | Species |
| Genus | Crockerinus Fitzpatrick, 1987
| 0 | Species |
| Genus | Dactylocorophium Karaman, 1980
| 0 | Species |
| Genus | Dentelasmopus Ledoyer, 1982
| 0 | Species |
| Genus | Depressicambarus Hobbs, 1969
| 0 | Species |
| Genus | Devonocaris Brooks, 1963
| 0 | Species |
| Genus | Diaphanosoma Bill, 1914
| 0 | Species |
| Genus | Dioxycaris Gürich, 1929
| 0 | Species |
| Genus | Dirigicambarus Fitzpatrick, 1983
| 0 | Species |
| Genus | Ebalites Müller, 1978
| 0 | Species |
| Genus | Eocaris Brooks, 1963
| 0 | Species |
| Genus | Eomesothyra Pershina, 1987
| 0 | Species |
| Genus | Erebicambarus Hobbs, 1969
| 0 | Species |
| Genus | Erythrogaulos Schram, 1984
| 0 | Species |
| Genus | Euroniscus Vandel, 1973
| 0 | Species |
| Genus | Eurysquillodes Manning, 1963
| 0 | Species |
| Genus | Exilicambarus Bouchard & Hobbs, 1976
| 0 | Species |
| Genus | Ferrecaris Calzada & Mane, 1993
| 0 | Species |
| Genus | Fitzcambarus Hobbs, 1983
| 0 | Species |
| Genus | Galenocaris Wells, 1944
| 0 | Species |
| Genus | Geniculophotis Barnard & Karaman, 1987
| 0 | Species |
| Genus | Gluckstadtella Savage, 1971
| 0 | Species |
| Genus | Glycera Haswell, 1879
| 6 | Species |
| Genus | Glyphthyreus
| 1 | Species |
| Genus | Goniochela
| 1 | Species |
| Genus | Gorgonpphontes Schram, 1984
| 0 | Species |
| Genus | Gremicambarus Fitzpatrick, 1987
| 0 | Species |
| Genus | Hagenides Hobbs, 1972
| 0 | Species |
| Genus | Haidzia Stock, 1985
| 0 | Species |
| Genus | Hercledo Barnard, 1964
| 0 | Species |
| Genus | Hespericambarus Fitzpatrick, 1987
| 0 | Species |
| Genus | Hiaticambarus Hobbs, 1969
| 0 | Species |
| Genus | Hoplita Pineiro, Morosi & Ramos, 2012
| 1 | Species |
| Genus | Hoplosquillodus Manning, 1978
| 0 | Species |
| Genus | Huangshandongia Cui & Huo, 1990
| 0 | Species |
| Genus | Huilmuichnus Melchor & Cardonatto, 2014
| 0 | Species |
| Genus | Hypercephon Danforth, 1971
| 0 | Species |
| Genus | Iliella Bacescu, 1968
| 0 | Species |
| Genus | Ilyrarachna G.O. Sars, 1869
| 2 | Species |
| Genus | Indiocratus Ledoyer, 1982
| 0 | Species |
| Genus | Iraticaris Adami-Rodrigues, Pazinato & Pinto, 2016
| 1 | Species |
| Genus | Joscphosella Ruffo, 1985
| 0 | Species |
| Genus | Jugicambarus Hobbs, 1969
| 0 | Species |
| Genus | Kensleyanthura Wagele, 1981
| 0 | Species |
| Genus | Kingella Savage, 1971
| 0 | Species |
| Genus | Kolvacaris Pershina, 1987
| 0 | Species |
| Genus | Kulmocaris Hahn & Brauckmann, 1977
| 0 | Species |
| Genus | Kunmingocaris Luo & Hu, 1999
| 0 | Species |
| Genus | Lebesconteia
| 0 | Species |
| Genus | Lebucarcinus Bahamonde & Frassinetti, 1980
| 0 | Species |
| Genus | Leconticambarus Hobbs, 1972
| 0 | Species |
| Genus | Liantuoia Cui & Huo, 1990
| 0 | Species |
| Genus | Libyochela Massa, Termier & Termier, 1974
| 0 | Species |
| Genus | Lonnbergius Hobbs, 1972
| 0 | Species |
| Genus | Lysiosquilloldes Manning, 1977
| 0 | Species |
| Genus | Macaroniscus Karaman, 1961
| 0 | Species |
| Genus | Macrocaris ♰ Miller, 1894
| 0 | Species |
| Genus | Mamayacaris Brooks, 1962
| 0 | Species |
| Genus | Manningiana Pretzmann, 1972
| 0 | Species |
| Genus | Metajaera Verhoeff, 1949
| 0 | Species |
| Genus | Mexicambarus Hobbs, 1972
| 0 | Species |
| Genus | Mucrogammarus Barnard & Gray, 1968
| 0 | Species |
| Genus | Mysidopsoides Bacescu & Gleye, 1979
| 0 | Species |
| Genus | Naranda Münster, 1842
| 0 | Species |
| Genus | Neomunna Menzies, 1962
| 0 | Species |
| Genus | Neoweckelia Dancau, 1973
| 0 | Species |
| Genus | Neurocaris Krestovikov, 1961
| 0 | Species |
| Genus | Nothozoe Barrande, 1872
| 0 | Species |
| Genus | Numidocaris Termier, Termier & Bonnefous, 1974
| 0 | Species |
| Genus | Oediosoma
| 1 | Species |
| Genus | Ophthalonapseudes Glaessner & Malzahn, 1962
| 0 | Species |
| Genus | Opthalmapseudes Glaessner & Malzahn, 1962
| 0 | Species |
| Genus | Oxyuropoda Carpenter & Swain, 1908
| 1 | Species |
| Genus | Palaemysis Peach, 1908
| 3 | Species |
| Genus | Pandicambarus Fitzpatrick, 1983
| 0 | Species |
| Genus | Pangamunna Schultz, 1979
| 0 | Species |
| Genus | Paratorynomma Glaessner, 1980
| 0 | Species |
| Genus | Pedunculocaprella Kaim-Malka, 1983
| 0 | Species |
| Genus | Pennides Hobbs, 1972
| 0 | Species |
| Genus | Permocaris Adami-Rodrigues, Pazinato & Pinto, 2016
| 1 | Species |
| Genus | Petycomaia Kropp, 1990
| 0 | Species |
| Genus | Phasganocaris Novák, 1887
| 3 | Species |
| Genus | Pittinucaris Adami-Rodrigues, Pazinato & Pinto, 2016
| 1 | Species |
| Genus | Pollichianum Heidtke, 1990
| 0 | Species |
| Genus | Poupelicaris Racheboeuf & Gourvennec, 2013
| 0 | Species |
| Genus | Procericambarus Fitzpatrick, 1987
| 0 | Species |
| Genus | Protobalanus Hall & Clarke, 1888
| 0 | Species |
| Genus | Protoclutiopsis Birstein, 1958
| 0 | Species |
| Genus | Psammoniphagus Chappuis, Delamare Deboutteville & Paulian, 1956
| 0 | Species |
| Genus | Pseudacanthus Bousfield, 1989
| 0 | Species |
| Genus | Pseudogammarellus Lagardère, 1968
| 1 | Species |
| Genus | Pseudomysidopsis Bacescu & Gleye, 1979
| 0 | Species |
| Genus | Pseudosatophora Ferrara & Taiti, 1986
| 0 | Species |
| Genus | Pseudotcalliocaris Brooks, 1962
| 0 | Species |
| Genus | Puncticambarus Hobbs, 1969
| 0 | Species |
| Genus | Quadras Karaman, 1984
| 0 | Species |
| Genus | Remoticambarus Hobbs, 1972
| 0 | Species |
| Genus | Reochius Lamont, 1975
| 0 | Species |
| Genus | Rhoadesius Fitzpatrick, 1987
| 0 | Species |
| Genus | Rostrhicephala Arimoto, 1976
| 0 | Species |
| Genus | Saccocaris Salter, 1868
| 0 | Species |
| Genus | Scapulicambarus Hobbs, 1972
| 0 | Species |
| Genus | Schramidontus ♰ Gueriau, Charbonnier & Clément, 2014
| 0 | Species |
| Genus | Schramocaris Clark, Gillespie, Morris & Clayton, 2015
| 1 | Species |
| Genus | Septcarnes Barnard & Karaman, 1991
| 0 | Species |
| Genus | Smaragdogarammarus Bazikalova, 1975
| 0 | Species |
| Genus | Spelaeonieippe Stock & Vermeulen, 1982
| 0 | Species |
| Genus | Spinicephala Arimoto, 1976
| 0 | Species |
| Genus | Spinocaris Uhl, 1999
| 0 | Species |
| Genus | Stegoeephalexia Moore, 1992
| 0 | Species |
| Genus | Subcylindrica Rhoads, 1962
| 2 | Species |
| Genus | Suttropcaris Koch, Gröning & Brauckmann, 2003
| 0 | Species |
| Genus | Tanglangia Luo & Hu, 1999
| 0 | Species |
| Genus | Tasilus Barnard, 1966
| 0 | Species |
| Genus | Tenuicambarus Hobbs, 1972
| 0 | Species |
| Genus | Thenops Bell, 1857
| 3 | Species |
| Genus | Tragulicambarus Fitzpatrick, 1987
| 0 | Species |
| Genus | Triangulata Rhoads, 1962
| 1 | Species |
| Genus | Triasocaris Bill, 1914
| 1 | Species |
| Genus | Trigonocarys
| 0 | Species |
| Genus | Trogoplax Guinot, 1986
| 0 | Species |
| Genus | Turaniscus Borutsky, 1969
| 0 | Species |
| Genus | Umfolozia Savage, 1971
| 1 | Species |
| Genus | Vauntompsonia Bate, 1858
| 1 | Species |
| Genus | Veticambarus Hobbs, 1969
| 0 | Species |
| Genus | Vladicaris Chlupac, 1995
| 0 | Species |
| Genus | Wechesia Frizzell & Exline, 1958
| 0 | Species |
| Genus | Williamocalmania Schram, 1984
| 0 | Species |
| Genus | Xenarcturis Sheppard, 1957
| 0 | Species |
| Genus | Xiphidiocaris
| 0 | Species |
| Genus | Yiliangocaris Luo & Hu, 1999
| 0 | Species |