Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
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- Biota
- Kingdom Animalia
- Phylum Acanthocephala
- Phylum Agmata †
- Phylum Animalia (awaiting allocation)
- Phylum Animalia incertae sedis
- Phylum Annelida
- Phylum Arthropoda
- Subphylum Chelicerata
- Subphylum Crustacea
- Class Branchiopoda
- Class Cephalocarida
- Class Crustacea (awaiting allocation)
- Class Crustacea incertae sedis
- Class Ichthyostraca
- Class Malacostraca
- Class Maxillopoda
- Class Ostracoda
- Order Archaeocopida
- Order Bradoriida †
- Order Cytheroidea (awaiting allocation)
- Order Eridostracoda
- Order Halocyprida
- Order Leiocopa
- Order Leperditicopida †
- Order Metacopida
- Order Myodocopida
- Order Ostracoda (awaiting allocation)
- Order Ostracoda incertae sedis
- Order Palaeocopida
- Order Phosphatocopida †
- Order Platycopida
- Order Podocopida
- Family Acratiidae Gruendel, 1962 †
- Family Acronotellidae Swartz, 1936 †
- Family Alloiocyprideidae Ayress & Whatley, 2014 †
- Family Australocytherideidae Hartmann, 1980
- Family Bairdiidae Sars, 1865
- Family Bairdiocopina incertae sedis
- Family Bairdiocyprididae Shaver, 1961 †
- Family Beecherellidae Ulrich, 1894 †
- Family Berounellidae Sohn & Berdan, 1960 †
- Family Bonaducecytheridae McKenzie, 1977
- Family Brachycytheridae Puri, 1954 accepted as Trachyleberididae Sylvester-Bradley, 1948
- Family Bufinidae Sohn & Stover, 1961 †
- Family Bythocyprididae Maddocks, 1969
- Family Bythocytheridae Sars, 1866
- Family Candonidae Kaufmann, 1900
- Family Candoniidae accepted as Candonidae Kaufmann, 1900
- Family Carbonitidae Swain, 1976 †
- Family Cavellinidae Egorov, 1950 †
- Family Cobanocytheridae Schornikov, 1975
- Family Collisarborisidae Neale, 1975 †
- Family Cuneocytheridae
- Family Cushmanideidae Puri, 1974
- Family Cyclocypridae
- Family Cypridae accepted as Cyprididae Baird, 1845
- Family Cyprideaidae Martin, 1940 †
- Family Cyprideidae Martin, 1940 †
- Family Cyprididae Baird, 1845
- Family Cypridopsidae Kaufmann, 1900
- Family Cytheralisonidae Jellinek & Swanson, 2003
- Family Cytherettidae
- Family Cytheridae Baird, 1850
- Family Cytherideidae Sars, 1925
- Family Cytherissinellidae Kashevarova, 1958 †
- Family Cytheroidea incertae sedis
- Family Cytheromatidae Elofson, 1939
- Family Cytheruridae Müller, 1894
- Family Darwinulidae
- Family Editiidae Knuepfer, 1967 †
- Family Entocytheridae Hoff, 1942
- Family Eucytheridae Puri, 1954
- Family Geisinidae Sohn, 1961 †
- Family Gerodiidae †
- Family Geroiidae Gruendel, 1962 †
- Family Healdiidae Harlton, 1933 †
- Family Healdioidea incertae sedis †
- Family Hemicytheridae Puri, 1953
- Family Ilyocyprididae Kaufmann, 1900
- Family Keysercytheridae Karanovic & Brandão, 2014
- Family Kliellidae Schäfer, 1945
- Family Krithidae Mandelstam, 1958
- Family Leguminocythereididae accepted as Trachyleberididae Sylvester-Bradley, 1948
- Family Leptocytheridae Hanai, 1957
- Family Limnocytheridae Klie, 1938
- Family Loxoconchidae Sars, 1865
- Family Macrocyprididae Müller, 1912
- Family Microcheilinellidae Gramm, 1975 †
- Family Microcytheridae Klie, 1938
- Family Neocytherideidae
- Family Neocytherideididae Puri, 1957
- Family Nesideidae
- Family Notodromadidae Kaufmann, 1900
- Family Notodromatidae
- Family Nunanidae McKenzie, Reyment & Reyment, 1993 † accepted as Paracytheridae Puri, 1974
- Family Oncocyprididae
- Family Osticytheridae Hartmann, 1980
- Family Pachydomellidae Berdan & Sohn, 1961 †
- Family Paracyprididae Sars, 1923 accepted as Candonidae Kaufmann, 1900
- Family Paracytheridae Puri, 1974
- Family Paracytherideidae Puri, 1957
- Family Paradoxostomatidae Brady & Norman, 1889
- Family Parvocytheridae Hartmann, 1959
- Family Pectocytheridae Hanai, 1957
- Family Pleurocytheridae Mandelstam, 1960 †
- Family Podocopida (awaiting allocation)
- Family Podocopida incertae sedis
- Family Pontocyprididae Müller, 1894
- Family Progonocytheridae Sylvester-Bradley, 1948
- Family Protocytheridae Ljubimova, 1956
- Family Psammocytheridae Klie, 1938
- Family Pseudolimnocytheridae
- Family Pussellidae Danielopol in Maddocks, 1976
- Family Quasillitidae Coryell & Malkin, 1936 †
- Family Rectonariidae Gruendel, 1962 †
- Family Rishonidae Sohn, 1960 †
- Family Rockalliidae
- Family Ropolonellidae Coryell & Malkin, 1936 †
- Family Saididae Aranki, McKenzie, Reyment & Reyment, 1992
- Family Saipanellidae †
- Family Schizocytheridae Howe, 1961
- Family Schulerideidae Mandelstam, 1959 †
- Family Sigilliidae Mandelstam, 1960
- Family Speluncellidae Schneider, 1960 †
- Family Suchonellidae Mishina, 1972 †
- Family Terrestricytheridae Schornikov, 1969
- Family Thaerocytheridae Hazel, 1967
- Family Thlipsuridae Ulrich, 1894 †
- Family Trachyleberididae Sylvester-Bradley, 1948
- Genus Abrocythereis Gou in Gou, Zheng & Huang, 1983 †
- Genus Abyssocythere Benson, 1971
- Genus Abyssophilos Jellinek & Swanson, 2003
- Genus Acanthocythereis Howe, 1963
- Genus Actinocythereis Puri, 1953
- Genus Actinoleberis McKenzie in Howe & McKenzie, 1989
- Genus Acuticythereis Edwards, 1944 †
- Genus Adencythere Mohammed & Keyser, 2014
- Genus Aegyptiana Boukhary, Damotte & Mohamed, 1982 †
- Genus Aegyptoleberis Boukhary, Bassiouni & Sharabi in Boukhary et al., 2013 †
- Genus Afroruggieria Keen, 2004 †
- Genus Agrenocythere Benson, 1972
- Genus Agulhasina Dingle, 1971 †
- Genus Alatacythere Murray & Hussey, 1942 †
- Genus Alatacythere Murray & Hussey, 1952 † accepted as Pterygocythereis Blake in Procter, 1933
- Genus Alatahermanites Whatley & Titterton, 1981
- Genus Alataleberis McKenzie & Warne, 1986 †
- Genus Alatanesidea Colin & Lauverjat, 1978 †
- Genus Alatapacifica Warne, 2010 †
- Genus Albileberis Hou in Hou & Tian, 1982 †
- Genus Albileberis Hou, 1978 †
- Genus Alocopocythere Siddiqui, 1971 †
- Genus Alteratrachyleberis Li, 1964 †
- Genus Amabilicythere Wood, 2005 † accepted as Celtia Neale, 1973 †
- Genus Ambocythere Bold, 1958
- Genus Ambtonia Malz, 1982 †
- Genus Amphiexophthalmocythere Gruendel, 1975 †
- Genus Amphileberis Guan, 1978 †
- Genus Anebocythereis Bate, 1972 †
- Genus Angolacythereis Hartmann, 1974
- Genus Anommatocythere Sohn, 1970 †
- Genus Anticythereis Bold, 1946 †
- Genus Apatihowella Jellinek & Swanson, 2003
- Genus Arcacythere Hornibrook, 1952
- Genus Arculacythereis Hartmann, 1981
- Genus Argenticytheretta Rossi De Garcia, 1969 †
- Genus Ascetoleberis Brouwers & Hazel, 1978 †
- Genus Asculdoracythereis Puckett & Hunt, 2022 †
- Genus Atjehella Kingma, 1948 †
- Genus Atlanticythere Benson, 1977 †
- Genus Australileberis Dingle, 1976 †
- Genus Australimoosella Hartmann in Hartmann-Schroder & Hartmann, 1978
- Species Australimoosella emaoi Hu & Tao, 2008
- Species Australimoosella exmouthensis Hartmann, 1978
- Species Australimoosella kuohuai Hu & Tao, 2008
- Species Australimoosella lauta (Brady, 1880)
- Species Australimoosella leemii Hu & Tao, 2008
- Species Australimoosella liebaui Hartmann, 1978
- Species Australimoosella micropunctata Hu & Tao, 2008
- Species Australimoosella polypleuron Coimbra, Ramos, Whatley & Bergue, 2004
- Species Australimoosella rockinghamensis Hartmann, 1979
- Species Australimoosella taiwanensis (Hu & Yeh, 1978)
- Species Australimoosella tomokoae (Ishizaki, 1968)
- Species Australimoosella wuchii Hu & Tao, 2008
- Genus Austrotrachyleberis Hartmann, 1988
- Genus Ayressoleberis Brandão & Yasuhara, 2013
- Genus Aysegulina Özdikmen, 2010 †
- Genus Bassiounicythere Wood, 2005 accepted as Cistacythereis Uliczny, 1969 †
- Genus Basslerella Howe in Howe, Hadley et al., 1935 † accepted as
- Genus Basslerites Teichert, 1937 †
- Genus Basslerites Howe in Coryell & Fields, 1937 †
- Genus Batavocythere Kemper, 1971 †
- Genus Bathycythere Sissingh, 1971
- Genus Bathypterocythereis Coles & Whatley, 1989 † accepted as Herrigocythere Gruendel, 1973 †
- Genus Bensonocosta Yasuhara, Hunt, Okahashi & Brandão, 2015 †
- Genus Bensonodutoitella Yasuhara, Hunt, Okahashi & Brandao, 2015
- Genus Bicornicythereis Puckett, 2009 †
- Genus Bicornucythere Schornikov & Shaytarov, 1979
- Genus Bosquetina Keij, 1957 †
- Genus Brachycythere Alexander, 1933
- Genus Bradyleberis McKenzie in Howe & McKenzie, 1989
- Genus Bradyon Jellinek, 1993
- Genus Buntonia Howe, 1935 †
- Genus Callocythere Whatley, Moguilevsky, Ramos & Coxill, 1998
- Genus Campylocythere Edwards, 1944
- Genus Capsacythere Bonaduce, Ruggieri & Russo, 1988 †
- Genus Caribella Teeter, 1975
- Genus Carinocythereis Ruggieri, 1956 †
- Genus Carinovalva Sissingh, 1973
- Genus Casteroleberia Hu & Tao, 2008 †
- Genus Cathaycythere Whatley & Zhao, 1987
- Genus Cativella Coryell & Fields, 1937
- Genus Celtia Neale, 1973 †
- Genus Chapmanicythereis Gruendel, 1973 †
- Genus Chavocythere McKenzie, Reyment & Reyment, 1990
- Genus Chrysocythere Ruggieri, 1962 †
- Genus Chukucythere Hu & Tao, 2008
- Genus Cistacythereis Uliczny, 1969 †
- Genus Cletocythereis Swain, 1963 †
- Genus Climacoidea Puri, 1956 †
- Genus Clinocthereis
- Genus Clinocythere Al-Furaih, 1980 †
- Genus Clinocythereis Ayress & Swanson, 1991
- Genus Cornicythereis Gruendel, 1973 †
- Genus Costa Neviani, 1928 †
- Genus Costaveenia Gruendel, 1968 †
- Genus Cribrocythere †
- Genus Cristaeleberis Bassiouni, 1970 †
- Genus Croninocythereis Yasuhara, Hunt, Okahashi & Brandão, 2015 †
- Genus Curfsina Deroo, 1966 †
- Genus Cystacythereis accepted as Cistacythereis Uliczny, 1969 †
- Genus Dahomeya Apostolescu, 1961 †
- Genus Deltaleberis McKenzie, Reyment & Reyment, 1991 †
- Genus Donmacythere Gruendel, 1976 †
- Genus Doratocythere McKenzie, 1967
- Genus Doricythereis Gruendel, 1976 †
- Genus Dumontina Deroo, 1966 † accepted as Paracaudites Deltel, 1963 †
- Genus Dutoitella Dingle, 1981
- Genus Echinocythereis Puri, 1954
- Genus Fallacihowella Jellinek & Swanson, 2003
- Genus Falsobuntonia Malz, 1982 †
- Genus Falsocythere Ruggieri, 1972 †
- Genus Falunia Grekoff & Moyes, 1956 †
- Genus Fissocarinocythere Brouwers & Hazel, 1978 †
- Genus Fissocythere Malz, 1959 †
- Genus Floricythereis Puckett & Colin, 2012 †
- Genus Frodocythereis Puckett & Hunt, 2022 †
- Genus Gibberleberis Dingle, 1969 †
- Genus Glencoeleberis Jellinek & Swanson, 2003
- Genus Glenocythere Al-Abdul-Razzaq, 1979 †
- Genus Gyrocythere Siddiqui, 1971 †
- Genus Hartmannosa Özdikmen, 2009
- Genus Haughtonileberis Dingle, 1969 †
- Genus Hazelina Moos, 1966 †
- Genus Hemiglenocythere Babinot, Colin & Randrianasolo, 2009 † accepted as Glenocythere Al-Abdul-Razzaq, 1979 †
- Genus Hemikrithe Bold, 1950
- Genus Hemitrachyleberis Hartmann, 1974
- Genus Henryhowella Puri, 1957
- Genus Herrigocythere Gruendel, 1973 †
- Genus Heteroconchella Hu & Tao, 2008
- Genus Hiltermannicythere Bassiouni, 1970
- Genus Hirsutocythere Howe, 1951 †
- Genus Histocythere Liebau, 1975 †
- Genus Holcopocythere Al-Furaih, 1980 †
- Genus Homocythere Kaye, 1963 † accepted as Veenia Butler & Jones, 1957 †
- Genus Hornibrookoleberis Yasuhara, Hunt, Okahashi & Brandão, 2015
- Genus Horrificiella Liebau, 1975 †
- Genus Howella Puri, 1956 † accepted as Henryhowella Puri, 1957
- Genus Huantraiconella Bertels, 1968 †
- Genus Hyphalocythere Benson, 1976
- Genus Idiocythere Triebel, 1958 †
- Genus Ikeyacythereis Tanaka, Hasegawa & Nomura, 2010 †
- Genus Incongruellina Ruggieri, 1958 †
- Genus Indimoosella Jellinek, 1993
- Genus Isobuntonia Apostolescu, 1961 †
- Genus Isocythere Terquem, 1885 †
- Genus Isocythereis Triebel, 1940 †
- Genus Jandairella Piovesan, Cabral & Colin in Piovesan et al., 2014 †
- Genus Kamajcythereis Pokorny & Colin, 1976 †
- Genus Keijella Ruggieri, 1967 †
- Genus Keniacythere Jellinek, 1993
- Genus Kingmaina Keij, 1957 †
- Genus Laevipellacythereis Puckett & Hunt, 2022 †
- Genus Lankacythere Bhatia & Kumar, 1979
- Genus Legitimocythere Coles & Whatley, 1989 †
- Genus Leguminocythereis Howe in Howe & Law, 1936 †
- Genus Leiocythereis Puckett & Colin, 2012 †
- Genus Leniocythere Howe, 1951 †
- Genus Leoniruggieria Keen, 2004 †
- Genus Limburgina Deroo, 1966 †
- Genus Loculiconcha Omatsola, 1970 †
- Genus Mackencythere Malz & Ikeya, 1982
- Genus Makatinella Dingle, 1984 †
- Genus Malagasyella Babinot, Colin & Randrianasolo, 2009 †
- Genus Malaycythereis Zhao & Whatley, 1989
- Genus Mandawacythere Bate, 1975 †
- Genus Marwickcythereis Whatley & Millson, 1992 †
- Genus Megommatocythere Colin & Oertli in Donze, Colin, Damotte, Oertli, Peypouquet & Said, 1982 †
- Genus Moosella Hartmann, 1964
- Genus Moosina Bassiouni & Luger, 1990 †
- Genus Mosaeleberis Deroo, 1966 †
- Genus Murrayina Puri, 1954
- Genus Mutilus Neviani, 1928 †
- Genus Neocythereis Omatsola, 1972
- Genus Neocytheretta Morkhoven, 1963 †
- Genus Neolophocythere Grossman, 1967
- Genus Neoveenia Bertels, 1969 †
- Genus Nigeria Reyment, 1963 †
- Genus Nigeriruggieria Keen, 2004 †
- Genus Nodosocosta Hu, 1984 †
- Genus Normanicythere Neale, 1959
- Genus Nucleolina Apostolescu & Deroo in Deroo, 1966 †
- Genus Oblitacythereis Benson, 1977
- Genus Occultocythereis Howe, 1951 †
- Genus Oertiella Pokorny, 1964 †
- Genus Oertliella Pokorny, 1964 †
- Genus Okadaleberis Bonaduce, Ruggieri, Russo & Bismuth, 1992 †
- Genus Oligocythereis Sylvester-Bradley, 1948 †
- Genus Opimocythere Hazel, 1968 †
- Genus Ordoniya Al-sheikhly, 1985 †
- Genus Otarocythere Al-Furaih, 1980 † accepted as Phalcocythere Siddiqui, 1971 †
- Genus Oxycythereis Benson, 1974 accepted as Pennyella Neale, 1974
- Genus Pacambocythere Malz, 1982 †
- Genus Paleoabyssocythere Benson, 1977 †
- Genus Paleoblitacythereis Benson, 1977 †
- Genus Paleocosta Benson, 1977 †
- Genus Paracathaycythere Whatley & Zhao, 1991
- Genus Paracosta Siddiqui, 1971 †
- Genus Paractinocythereis Yasuhara et al., 2020 †
- Genus Paradumbraticythere Wood, 2005 †
- Genus Paragrenocythere Al-Furaih, 1975 †
- Genus Paragrenocythere Benson, 1974
- Genus Parakeijella Jellinek, 1993
- Genus Paraplatycosta Dingle, 1971 †
- Genus Parexophthalmocythere Oertli, 1959 †
- Genus Parvacythereis Gruendel, 1973 †
- Genus Patrizia Bonaduce & Russo, 1990 accepted as Patrizianella Kempf, 2011
- Genus Patrizianella Kempf, 2011
- Genus Pennyella Neale, 1974
- Genus Phacorhabdotus Howe & Laurencich, 1958 †
- Genus Phalcocythere Siddiqui, 1971 †
- Genus Philoneptunus Whatley, Millson & Ayress, 1992
- Genus Phyrocythere Al-Furaih, 1980 †
- Genus Pistocythereis Gou in Gou, Zheng & Huang, 1983 †
- Genus Planileberis Deroo, 1966 †
- Genus Platycythereis Triebel, 1940 †
- Genus Ponticocythereis McKenzie, 1967
- Genus Potiguarella Piovesan, Cabral & Colin, 2014 †
- Genus Praephacorhabdotus Gruendel, 1974 †
- Genus Proteoconcha Plusquellec & Sandberg, 1969 accepted as Climacoidea Puri, 1956 †
- Genus Protobuntonia Grekoff, 1954 †
- Genus Pseudobosquetina Guernet & Moullade, 1994 †
- Genus Pseudocythereis Jennings, 1936 †
- Genus Pseudocythereis Skogsberg, 1928
- Genus Pseudokeijella Dingle, 1992
- Genus Pseudomutilus Sciuto & Benkhedda, 2021 †
- Genus Pterygocythere Hill, 1954 †
- Genus Pterygocythereis Blake in Procter, 1933
- Genus Puricythereis Bonaduce, Masoli & Pugliese, 1976
- Genus Quadraleberis Bate & Sheppard, 1980 accepted as Puricythereis Bonaduce, Masoli & Pugliese, 1976
- Genus Quasiagrenocythere Sciuto & Benkhedda, 2021 †
- Genus Quasibuntonia Ruggieri, 1958 †
- Genus Quasihermanites Gruendel, 1964 †
- Genus Rabilimis Hazel, 1967
- Genus Rayella Teichert, 1939 †
- Genus Rayneria Neale, 1975 †
- Genus Rectobuntonia Sissingh, 1972 †
- Genus Rectotrachyleberis Ruggieri, 1952
- Genus Rehacythereis Gruendel, 1973 †
- Genus Repandocosta Hazel, 1967 †
- Genus Reticulina Bassiouni, 1969 †
- Genus Reticulocosta Gruendel, 1974 †
- Genus Reticulocythereis Puri, 1960 accepted as Climacoidea Puri, 1956 †
- Genus Reymentia Omatsola, 1970
- Genus Reymenticosta Bassiouni & Luger, 1990 †
- Genus Robertsonites Swain, 1963 †
- Genus Rocaleberis Bertels, 1969 †
- Genus Rockallia Whatley, Frame & Whittaker, 1978
- Genus Ruggeria accepted as Ruggieria Keij, 1957
- Genus Ruggieria Keij, 1957
- Genus Rugocythereis Dingle, Lord & Boomer, 1990
- Genus Rushdisaidina Bassiouni & Luger, 1990 †
- Genus Ryugucivis Yasuhara, Hunt, Okahashi & Brandão, 2015 †
- Genus Scepticocythereis Bate, 1972 †
- Genus Sinoleberis Hu, 1979 †
- Genus Soudanella Apostolescu, 1961 †
- Genus Sphaeroleberis Deroo, 1966 †
- Genus Spinoleberis Deroo, 1966 †
- Genus Stigmatocythere Siddiqui, 1971 †
- Genus Strobilocythere Jellinek, 1990
- Genus Suhmicythere Benson, 1974 accepted as Dutoitella Dingle, 1981
- Genus Taiwanocythere Hu, 1984 †
- Genus Taracythere Ayress, 1995
- Genus Tegmenia Bonaduce, Ruggieri & Russo, 1988 †
- Genus Tetraruggieria Keen, 2004 †
- Genus Thalassocythere Benson, 1977
- Genus Togoina Apostolescu, 1961 †
- Genus Toolongella Bate, 1972 †
- Genus Trachyleberidea Bowen, 1953 †
- Genus Trachyleberis Brady, 1898
- Genus Tropidocythere Huff, 1970 †
- Genus Tumulocythereis Puckett & Hunt, 2022 †
- Genus Unicapella Dingle, 1980 †
- Genus Uskutchiella Melnikova, 1992 †
- Genus Veenia Butler & Jones, 1957 †
- Genus Veeniacythereis Gruendel, 1973 †
- Genus Venericythere Mostafawi, 1992
- Genus Vijaiella Jain, 1978
- Genus Werribeeleberis McKenzie, Reyment & Reyment, 1993 †
- Genus Whatleyella Coimbra, Carreño & Ferron, 1994
- Genus Wichmanella Bertels, 1969
- Genus Wichmannella Bertels, 1969 †
- Genus Xandarosina Benson in Benson & Sylvester-Bradley, 1971 accepted as Bathycythere Sissingh, 1971
- Genus Yajimaina Malz, 1981 †
- Genus Yassinicythere McKenzie in Howe & McKenzie, 1989
- Family Trapezoidellidae Sohn, 1979 †
- Family Tricornidae Blumenstengel, 1965 †
- Family Tricorninidae Blumenstengel, 1965 †
- Family Xestoleberidae accepted as Xestoleberididae Sars, 1928
- Family Xestoleberididae Sars, 1928
- Class Remipedia
- Order Cyclida †
- Genus Anatifera Meuschen, 1787
- Genus Dickinsonia Tasch, 1963 † accepted as Elmocephalus Tasch, 1964 †
- Genus Elmocephalus Tasch, 1964 †
- Subphylum Hexapoda
- Subphylum Myriapoda
- Subphylum Trilobitomorpha †
- Class Arachnomorpha (awaiting allocation)
- Class Arthropoda (awaiting allocation)
- Class Artiopoda †
- Class Crustaceomorpha incertae sedis †
- Class Dinocaridida †
- Class Labrophora incertae sedis
- Class Lamellipedia incertae sedis
- Class Megacheira †
- Class Thylacocephala †
- Class Xenocarida incertae sedis
- Order Canadaspidida † accepted as Hymenocarina †
- Order Cheloniellida †
- Order Emeraldellida † accepted as Arthropoda
- Order Fuxianhuiida †
- Order Habeliida †
- Order Hymenocarina †
- Order Isoxyida †
- Order Pectocaridida † accepted as Hymenocarina †
- Order Waptiida † accepted as Hymenocarina †
- Family Bomakellidae Fedonkin, 1987 †
- Family Burgessiidae Walcott, 1912 †
- Family Emeraldellidae Raymond, 1935 †
- Family Guangweicarididae Luo, Fu, Hu, Li, Hou, You, Pang & Liu, 2007 †
- Genus Aaveqaspis Peel & Stein, 2009 †
- Genus Acheronauta Pulsipher, Anderson, Wright, Kluessendorf, Mikulic & Schiffbauer, 2022 †
- Genus Arthroaspis Stein, Budd, Peel & Harper, 2013 †
- Genus Astutuscaris Jiao & Du, 2022 †
- Genus Bennettarthra Fayers, Trewin & Morrissey, 2010 †
- Genus Bushizheia O'Flynn & Liu in O'Flynn et al., 2020 †
- Genus Chuandianella Hou & Bergström, 1991 †
- Genus Dioxycaris Gürich, 1929 †
- Genus Dongshanocaris Hou, Bergström, Wang, Feng & Chen, 1999 †
- Genus Duraznovis Lara, Cariglino & Zavattieri in Lara et al., 2019 †
- Genus Duraznovs Lara, Cariglino & Zavattieri in Lara et al., 2019 † accepted as Duraznovis Lara, Cariglino & Zavattieri in Lara et al., 2019 †
- Genus Esmeraldacaris Waggoner, 2003 †
- Genus Fibulacaris Izquierdo-López & Caron, 2019 †
- Genus Kiisortoqia Stein, 2010 †
- Genus Kylinxia Zeng, Zhao, Niu, Zhu & Huang, 2020 †
- Genus Lihuacaris Jiao, Pates, Lerosey-Aubril, Ortega-Hernández, Yang, Lan & Zhang, 2021 †
- Genus Norikeya Tanaka, Siveter & Williams, 2013 †
- Genus Nothozoe Barrande, 1872 †
- Genus Nothozoe Barrande in Bigsby, 1868 † accepted as Nothozoe Barrande, 1872 †
- Genus Notozoe Zittel, 1885 † accepted as Nothozoe Barrande, 1872 †
- Genus Pakucaris Izquierdo-López & Caron, 2021 †
- Genus Pambdelurion Budd, 1998 †
- Genus Parvibellus Liu, Dunlop, Steiner & Shu, 2022 †
- Genus Pleuralata McCoy, Strother & Briggs, 2012 †
- Genus Pseudoangustidontus Van Roy & Tetlie, 2006 †
- Genus Pteroessa Hudson & Gosse, 1886
- Genus Sidneyia Walcott, 1911 †
- Genus Siriocaris Lagebro, Stein & Peel, 2009 †
- Genus Vermontcaris Pari, Briggs & Gaines, 2022 †
- Genus Youti Smith, Long, Dhungana, Dobson, Yang & Zhang, 2024 †
- Phylum Brachiopoda
- Phylum Bryozoa
- Phylum Cephalorhyncha incertae sedis
- Phylum Chaetognatha
- Phylum Chitinozoa †
- Phylum Chordata
- Phylum Cnidaria
- Phylum Ctenophora
- Phylum Cycliophora
- Phylum Cycloneuralia incertae sedis
- Phylum Ecdysozoa incertae sedis †
- Phylum Echinodermata
- Phylum Entoprocta
- Phylum Gastrotricha
- Phylum Gnathostomulida
- Phylum Hemichordata
- Phylum Hyolitha †
- Phylum Kinorhyncha
- Phylum Lobopoda †
- Phylum Loricifera
- Phylum Micrognathozoa
- Phylum Mollusca
- Phylum Monoblastozoa accepted as Animalia incertae sedis
- Phylum Nematoda
- Phylum Nematomorpha
- Phylum Nemertea
- Phylum Onychophora
- Phylum Orthonectida
- Phylum Phoronida
- Phylum Placozoa
- Phylum Platyhelminthes
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera
- Phylum Priapula accepted as Priapulida
- Phylum Priapulida
- Phylum Problematica † accepted as Animalia incertae sedis
- Phylum Rhombozoa
- Phylum Rotifera
- Phylum Scalidophora incertae sedis
- Phylum Sipuncula
- Phylum Tardigrada
- Phylum Trace fossils †
- Phylum Vendobionta †
- Phylum Vestimentifera accepted as Siboglinidae Caullery, 1914
- Phylum Vetulicolia †
- Phylum Vinctiplicata incertae sedis †
- Phylum Xenacoelomorpha
- Genus Trilobocaris Pribyl, 1953 †
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Kingdom Fungi
- Kingdom Plantae
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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