Between brackets is the number of accepted species
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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
- Subphylum Hexapoda
- Class Collembola
- Class Diplura
- Class Entognatha accepted as Hexapoda
- Class Insecta
- Order Alienoptera † accepted as Blattodea
- Order Amphiesmenoptera incertae sedis †
- Order Anoplura accepted as Phthiraptera
- Order Archaeognatha
- Order Archaeorthoptera (awaiting allocation) †
- Order Archaeorthoptera incertae sedis
- Order Argentinoptera †
- Order Blattodea
- Order Blattoptera †
- Order Caloneurida
- Order Caloneurodea †
- Order Cnemidolestodea †
- Order Coleoptera
- Order Coxoplectoptera †
- Order Dermaptera
- Order Diaphanopterodea †
- Order Diaphanopteroidea accepted as Diaphanopterodea †
- Order Dicliptera †
- Order Dicondylia incertae sedis
- Order Dictyoptera (awaiting allocation)
- Order Dictyoptera incertae sedis
- Order Diptera
- Family Acartophthalmidae Czerny, 1928
- Family Acroceridae Leach, 1815
- Family Agromyzidae Fallén, 1823
- Family Alinkidae Krzemiński, 1992 † accepted as Procramptonomyiidae Kovalev, 1985 †
- Family Anisopidae accepted as Anisopodidae Knab, 1912
- Family Anisopodidae Knab, 1912
- Family Ansorgiidae Evenhuis, 1994 †
- Family Antefungivoridae Rohdendorf, 1938 †
- Family Anthomyiidae Latreille, 1829
- Family Anthomyzidae Czerny, 1903
- Family Apioceridae Bigot, 1857
- Family Apsilocephalidae Nagatomi, Saigusa, Nagatomi & Lyneborg, 1991
- Family Apystomyiidae Nagatomi & Liu, 1994
- Family Archisargidae Rohdendorf, 1951 †
- Family Architendipedidae Rohdendorf, 1962 † accepted as Ptychopteridae Osten Sacken, 1862
- Family Archizelmiridae Rohdendorf, 1962 †
- Family Asilidae Latreille, 1802
- Family Asiloidea incertae sedis
- Family Asiochaoboridae Hong & Wang, 1990 †
- Family Asteiidae Rondani, 1856
- Family Atelestidae Hennig, 1970
- Family Athericidae Nowicki, 1873
- Family Aulacigastridae Duda, 1924
- Family Australimyzidae Griffiths, 1972
- Family Austroleptidae Nagatomi, 1982
- Family Axymyiidae Shannon, 1921
- Family Bengaliidae Brauer & Bergenstamm, 1889
- Family Bibionidae Fleming, 1821
- Family Blephariceridae Loew, 1862
- Family Blepharoceridae accepted as Blephariceridae Loew, 1862
- Family Boholdoyidae Kovalev, 1985 †
- Family Bolithophilidae accepted as Bolitophilidae Winnertz, 1863
- Family Bolitophilidae Winnertz, 1863
- Family Bombylidae accepted as Bombyliidae Latreille, 1802
- Family Bombyliidae Latreille, 1802
- Family Borboridae Newman, 1834 accepted as Sphaeroceridae Macquart, 1835
- Family Brachystomatidae Melander, 1908
- Family Braulidae Egger, 1853
- Family Calliphoridae Brauer & Bergenstamm, 1889
- Family Camillidae Frey, 1921
- Family Campichoetidae Griffiths, 1972
- Family Canaceidae accepted as Canacidae Jones, 1906
- Family Canacidae Jones, 1906
- Family Canthyloscelidae Shannon, 1927
- Family Carnidae Newman, 1834
- Family Cascopleciidae Poinar, 2010 †
- Family Cecidomyiidae Newman, 1835
- Family Celyphidae Bigot, 1852
- Family Ceratopogonidae Newman, 1834
- Family Chamaemyiidae Hendel, 1910
- Family Chaoboridae Edwards, 1932
- Family Chimeromyiidae Grimaldi & Cumming, 2009 †
- Family Chironomidae Macquart, 1838
- Family Chironomoidea incertae sedis
- Family Chloropidae Rondani, 1856
- Family Christelenkidae Roháček, 2023 †
- Family Chyromyidae Hendel, 1916
- Family Circumphallidae Papp, 2011
- Family Clusiidae Hendel, 1916
- Family Clusiomitidae Roháček & Hoffeins, 2021 †
- Family Coelopidae Hendel, 1910
- Family Coenomyiidae
- Family Conopidae Latreille, 1802
- Family Cordyluridae
- Family Corethrellidae Edwards, 1932
- Family Cratomyiidae Mazzarolo & Amorim, 2000 † accepted as Zhangsolvidae Nagatomi & Yang, 1998 †
- Family Crosaphididae Kovalev, 1983 †
- Family Cryptochaetidae accepted as Cryptochetidae Brues & Melander, 1932
- Family Cryptochetidae Brues & Melander, 1932
- Family Ctenostylidae Bigot, 1882
- Family Culicidae Meigen, 1818
- Genus Abraedes Zavortink, 1970
- Genus Acalleomyia Leicester, 1908
- Genus Acallyntrum Stone, 1948
- Genus Acartomyia Theobald, 1903
- Genus Aedeomyia Theobald, 1901
- Genus Aedes Meigen, 1818
- Genus Aëdes Meigen, 1818 accepted as Aedes Meigen, 1818
- Genus Aedimorphus Theobald, 1903
- Genus Aedinus Lutz, 1905
- Genus Aedomyia Edwards, 1912 accepted as Aedeomyia Theobald, 1901
- Genus Aetheapnomyia Harbuch & Greenwalt, 2012 †
- Genus Afroculex Danilov, 1989
- Genus Afrorhynchus Ribeiro, 1991
- Genus Aglaonotus Reinert, Harbach & Kitching, 2009 accepted as Petermattinglyius Reinert, Harbach & Kitching, 2009
- Genus Aioretomyia Leicester, 1908
- Genus Alanstonea Mattingly, 1960
- Genus Albuginosus Reinert, 1987
- Genus Aldrichia Theobald, 1903
- Genus Aldrichinella Theobald, 1910
- Genus Allimanta Casal & Garcia, 1968
- Genus Alloeomyia Reinert, Harbach & Kitching, 2008 accepted as Collessius Reinert, Harbach & Kitching, 2006
- Genus Andersonia Strickland, 1911
- Genus Aniella Enderlein, 1923
- Genus Anisocheleomyia Theobald, 1905
- Genus Ankylorhynchus Lutz in Bourroul, 1904
- Genus Anopheles Meigen, 1818
- Genus Apicomyia Shannon, 1922
- Genus Apoasphondylia Gagne, 1973 accepted as Diceromyia Felt, 1918
- Genus Aporoculex Theobald, 1907
- Genus Archaeoculicus
- Genus Armigeres Theobald, 1901
- Genus Arribalzagia Theobald, 1903
- Genus Arthuromyia Ayroza Galvão, 1941
- Genus Asioculicus Hong, 1976
- Genus Austromansonia Belkin, 1968
- Genus Austrotheobaldia Dobrotworsky, 1954
- Genus Ayurakitia Thurman, 1954
- Genus Aztecaedes Zavortink, 1972
- Genus Baimaia Harbach, Rattanarithikul & Harrision, 2005 accepted as Anopheles Meigen, 1818
- Genus Bancroftia Lutz in Bourroul, 1904
- Genus Banksinella Theobald, 1907
- Genus Barraudius Edwards, 1921
- Genus Bathosomyia Theobald, 1909
- Genus Belkinius Reinert, 1982
- Genus Belkinomyia Adames & Galindo, 1973
- Genus Bifidistylus Reinert, Harbach & Kitching, 2009
- Genus Binotia Blanchard, 1904
- Genus Bironella Theobald, 1905
- Genus Blanchardiomyia Brunetti, 1912 accepted as Armigeres Theobald, 1901
- Genus Bohartius Reinert, Harbach & Kitching, 2009 accepted as Aedes Meigen, 1818
- Genus Bolbodeomyia Theobald, 1910
- Genus Borichinda Rattanarithikul & Harbach, 2007
- Genus Boycia Newstead, 1907
- Genus Brachiomyia Theobald, 1901
- Genus Brachiosoma Theobald, 1901
- Genus Brachomyia Edwards, 1932
- Genus Brevirhynchus Theobald, 1908
- Genus Burmaculex Borkent & Grimaldi, 2004 †
- Genus Buvirilia Reinert, Harbach & Kitching, 2008 accepted as Ochlerotatus Lynch-Arribalzaga, 1891
- Genus Cacomyia Coquillett, 1906
- Genus Caenocephalus Taylor, 1914
- Genus Caenomyiella Harbach & Peyton, 1990
- Genus Calladimyia Dyar, 1919
- Genus Carrollia Lutz, 1905
- Genus Catageiomyia Theobald, 1904
- Genus Catatassomyia Dyar & Shannon, 1925
- Genus Cellia Theobald, 1902
- Genus Chaetocruiomyia Theobald, 1910
- Genus Chaetomyia Leicester, 1908
- Genus Chagasia Cruz, 1906
- Genus Chilomyia Shannon, 1922
- Genus Christya Theobald, 1903
- Genus Chrysoconops Goeldi, 1905
- Genus Cleobonnea Dyar, 1919
- Genus Coetzeemyia Huang, Mathis & Wilkerson, 2010 accepted as Aedes Meigen, 1818
- Genus Collessius Reinert, Harbach & Kitching, 2006
- Genus Colonemyia Leicester, 1908
- Genus Conchyliastes Howard, 1901
- Genus Conopomyia Leicester, 1908
- Genus Conopostegus Dyar, 1925
- Genus Coquillettidia Dyar, 1905
- Genus Cornetius Huang, 2005 accepted as Aedes Meigen, 1818
- Genus Culex Linnaeus, 1758
- Genus Culicada Felt, 1904
- Genus Culicella Felt, 1904
- Genus Culicelsa Felt, 1904
- Genus Culiciomyia Theobald, 1907 accepted as Culex Linnaeus, 1758
- Genus Culicites Meunier, 1915 † accepted as Neoculicites Evenhuis, 1994 †
- Genus Culiselsa Felt, 1904
- Genus Culiseta Felt, 1904
- Genus Cyathomyia Meijere, 1910
- Genus Cyclolepidopteron Blanchard, 1901
- Genus Cycloleppteron Theobald, 1901
- Genus Dactylomyia Newstead & Carter, 1910
- Genus Dahliana Reinert, Harbach & Kitching, 2006
- Genus Danielsia Theobald, 1904
- Genus Dasymyia Leicester, 1908
- Genus Decamyia Dyar, 1919
- Genus Deinocerites Theobald, 1901
- Genus Deinokerides Giles, 1902 accepted as Deinocerites Theobald, 1901
- Genus Dendromyia Theobald, 1903 accepted as Wyeomyia Theobald, 1901
- Genus Desvoidya Blanchard, 1901
- Genus Diceromyia Felt, 1918
- Genus Diceromyia Theobald, 1911
- Genus Dinanamesus Dyar & Knab, 1909
- Genus Dinocerites Blanchard, 1905 accepted as Deinocerites Theobald, 1901
- Genus Dinomimetes Knab, 1907
- Genus Dinomyia Dyar, 1919 accepted as Wyeomyia Theobald, 1901
- Genus Diphalangarpe Dyar, 1919
- Genus Dixapuella Dyar & Shannon, 1924
- Genus Dixomyia Taylor, 1914
- Genus Dobrotworskyius Reinert, Harbach & Kitching, 2006
- Genus Downsiomyia Vargas, 1950
- Genus Dunnius Edwards, 1930
- Genus Duttonia Newstead, 1907
- Genus Dyarina Bonne-Wepster & Bonne, 1921
- Genus Ecculex Felt, 1904
- Genus Ekrinomyia Leicester, 1908
- Genus Elpeytonius Reinert, Harbach & Kitching, 2009
- Genus Empihals Reinert, Harbach & Kitching, 2008 accepted as Ochlerotatus Lynch-Arribalzaga, 1891
- Genus Eoaedes Harbuch & Greenwalt, 2012 †
- Genus Eretmapodites Theobald, 1901
- Genus Eretmapodytes
- Genus Eretmopodites Curran, 1935 accepted as Eretmapodites Theobald, 1901
- Genus Eretmopodites Edwards, 1912 accepted as Eretmapodites Theobald, 1901
- Genus Etorilepidomyia Alcock, 1911
- Genus Etorleptiomyia Theobald, 1904
- Genus Eubonnea Dyar, 1919
- Genus Eumelanomyia Theobald, 1909
- Genus Exallomyia Harbach & Peyton, 1991
- Genus Feltidia Dyar, 1905
- Genus Feltinella Theobald, 1907
- Genus Ficalbia Theobald, 1903
- Genus Finlaya Theobald, 1903
- Genus Finlayia Giles, 1904
- Genus Fredwardsius Reinert, 2000
- Genus Galindomyia Stone & Barreto, 1969
- Genus Geitonomyia Leicester, 1908
- Genus Georgecraigius Reinert, Harbach & Kitching, 2006
- Genus Gilesia Theobald, 1903
- Genus Gilesius Reinert, Harbach & Kitching, 2006
- Genus Gnophodeomyia Theobald, 1905
- Genus Goeldia Theobald, 1903 accepted as Shannoniana Lane & Cerqueira, 1942
- Genus Goldia Theobald, 1903 accepted as Shannoniana Lane & Cerqueira, 1942
- Genus Göldia Theobald, 1903 accepted as Shannoniana Lane & Cerqueira, 1942
- Genus Grabhamia Theobald, 1903
- Species Grabhamia australis Strickland, 1911 accepted as Aedes stricklandi Edwards, 1912
- Species Grabhamia flindersi Taylor, 1914 accepted as Aedes stricklandi Edwards, 1912
- Species Grabhamia idahoensis Theobald, 1903
- Species Grabhamia mediolineata Ludlow, 1907 accepted as Aedes melanimon Dyar, 1924
- Species Grabhamia nigromaculis Ludlow, 1906
- Species Grabhamia pygmaea Theobald, 1903
- Species Grabhamia theobaldi Taylor, 1914 accepted as Aedes theobaldi Taylor, 1914
- Genus Grassia Theobald, 1902
- Genus Gualteria Lutz, 1904
- Genus Gymnometopa Coquillett, 1905
- Genus Haemagogus Williston, 1896
- Genus Halaedes Belkin, 1962
- Genus Harbachius Reinert, 1999
- Genus Harpagomyia Meijere, 1909 accepted as Malaya Leicester, 1908
- Genus Heizmannia Ludlow, 1905
- Genus Heliconiamyia Dyar, 1919
- Genus Heptaphlebomyia Theobald, 1903
- Genus Heteraspidion Reinert, Harbach & Kitching, 2009 accepted as Aedes Meigen, 1818
- Genus Heteronycha Lynch Arribálzaga, 1891
- Genus Himalaius Reinert, Harbach & Kitching, 2006
- Genus Hispidimyia Theobald, 1910
- Genus Hodgesia Theobald, 1904
- Genus Hopkinsius Reinert, Harbach & Kitching, 2008
- Genus Horsfallius Reinert, Harbach & Kitching, 2006 accepted as Georgecraigius Reinert, Harbach & Kitching, 2006
- Genus Howardia Theobald, 1902
- Genus Howardina Theobald, 1903
- Genus Huaedes Huang, 1968 †
- Genus Huangmyia Reinert, Harbach & Kitching, 2009 accepted as Aedes Meigen, 1818
- Genus Hulecoeteomyia Theobald, 1904
- Genus Hyloconops Lutz in Bourroul, 1904
- Genus Hystatomyia Dyar, 1919
- Genus Ianthinosoma Goeldi, 1905 accepted as Janthinosoma Lynch Arribálzaga, 1891
- Genus Indusius Barraud, 1934
- Genus Insulalutzia Tanaka, 2003
- Genus Isoaedes Reinert, 1979
- Genus Isostomyia Coquillett, 1906
- Genus Jamesia Christophers, 1906 accepted as Culex Linnaeus, 1758
- Genus Janthinosoma Lynch Arribálzaga, 1891
- Genus Jarnellius Reinert, Harbach & Kitching, 2006
- Genus Jihlienius Reinert, Harbach & Kitching, 2006
- Genus Joblotia Blanchard, 1901
- Genus Johnbelkinia Zavortink, 1979
- Genus Juppius Reinert, Harbach & Kitching, 2009 accepted as Ochlerotatus Lynch-Arribalzaga, 1891
- Genus Kenknightia Reinert, 1990
- Genus Kerteszia Theobald, 1905
- Genus Kimia Huong & Harbach, 2007
- Genus Kingia Theobald, 1910
- Genus Kitzmilleria Danilov, 1989
- Genus Kompia Aitken, 1941
- Genus Kummyia Vargas, 1950
- Genus Laverania Theobald, 1902
- Genus Leicesteria Theobald, 1904
- Genus Leicesteriomyia Brunetti, 1912
- Genus Leipidotomyia
- Genus Lemmamyia Dyar, 1919
- Genus Lepidokeneon Reinert, Harbach & Kitching, 2009 accepted as Ochlerotatus Lynch-Arribalzaga, 1891
- Genus Lepidotomyia Theobald, 1905 [2] accepted as Aedes Meigen, 1818
- Genus Lepidotomyia Theobald, 1905 accepted as Aedes Meigen, 1818
- Genus Lepiothauma Enderlein, 1923
- Genus Leptosomatomyia Theobald, 1905
- Genus Leslieomyia Christophers, 1911
- Genus Lesticocampa Dyar & Knab, 1906
- Genus Levua Stone & Bohart, 1944
- Genus Lewnielsenius Reinert, Harbach & Kitching, 2006 accepted as Jarnellius Reinert, Harbach & Kitching, 2006
- Genus Limatus Theobald, 1901
- Genus Lophoceraomyia Theobald, 1905
- Genus Lophoceratomyia Theobald, 1905
- Genus Lophoscelomyia Theobald, 1904
- Genus Lorrainea Belkin, 1962
- Genus Ludlowia Theobald, 1907
- Genus Luius Reinert, Harbach & Kitching, 2008
- Genus Lutzia Theobald, 1903
- Genus Luzonus Stone & Bohart, 1944
- Genus Lynchiella Lahille, 1904
- Genus Macleaya Theobald, 1903
- Genus Magarhinus Coquillett, 1910 accepted as Megarhinus Robineau-Desvoidy, 1827
- Genus Maillotia Theobald, 1907
- Genus Malaya Leicester, 1908
- Genus Manguinhosia Cruz in Peryassú, 1908
- Genus Mansonia Blanchard, 1901
- Genus Mansonioides Theobald, 1907
- Genus Maorigoeldia Edwards, 1930
- Genus Mattinglyia Lien, 1968
- Genus Megaculex Theobald, 1907
- Genus Megarhina Walker, 1848 accepted as Megarhinus Robineau-Desvoidy, 1827
- Genus Megarhina Macquart, 1838 accepted as Megarhinus Robineau-Desvoidy, 1827
- Genus Megarhinus Robineau-Desvoidy, 1827 accepted as Lynchiella Lahille, 1904
- Genus Megarrhina Skuse, 1889 accepted as Megarhinus Robineau-Desvoidy, 1827
- Genus Melanoconion Theobald, 1903
- Genus Melanoconium Blanchard, 1905
- Genus Menolepis Lutz in Peryassú, 1908
- Genus Menolepsis
- Genus Metalutzia Tanaka, 2003
- Genus Miamyia Dyar, 1919
- Genus Micraedes Coquillett, 1905
- Genus Micraëdes Coquillett, 1905 accepted as Micraedes Coquillett, 1905
- Genus Microculex Theobald, 1907
- Genus Mimeteculex Theobald, 1908
- Genus Mimeteomyia Theobald, 1910
- Genus Mimetomyia
- Genus Mimomyia Theobald, 1903
- Genus Missirolimyia Vargas, 1950
- Genus Miyagiella Harbach, 2014 accepted as Topomyia Leicester, 1908
- Genus Mochlostyrax Dyar & Knab, 1906
- Genus Molpemyia Theobald, 1910
- Genus Mucidus Theobald, 1901
- Genus Mukwaya Reinert, Harbach & Kitching, 2009 accepted as Aedes Meigen, 1818
- Genus Myxosquamus Theobald, 1909
- Genus Myzomyia Blanchard, 1902
- Genus Myzorhynchella Theobald, 1907
- Genus Myzorhynchus Blanchard, 1902
- Genus Neobironella Tenorio, 1977
- Genus Neocellia Theobald, 1907
- Genus Neochaoborus Edwards, 1930
- Genus Neoculex Dyar, 1905
- Genus Neoculicites Evenhuis, 1994 †
- Genus Neomacleaya Theobald, 1907
- Genus Neomelanoconion Theobald, 1907
- Genus Neomyzomyia Theobald, 1910
- Genus Neopecomyia Theobald, 1909
- Genus Neosquamomyia Taylor, 1914
- Genus Neotheobaldia Dobrotworsky, 1954 accepted as Neotheobaldia Dobrotworsky, 1958
- Genus Neotheobaldia Dobrotworsky, 1958
- Genus Nicaromyia Broche & Rodriguez, 2001
- Genus Nothoskusea Dumbleton, 1962
- Genus Nyssorhynchus Blanchard, 1902
- Genus Nyssorrhynchus
- Genus Ochlerotathus Lynch Arribálzaga, 1891 accepted as Ochlerotatus Lynch-Arribalzaga, 1891
- Genus Ochlerotatus Lynch-Arribalzaga, 1891
- Genus Oculeomyia Theobald, 1907
- Genus Onirion Peyton & Harbach in Harbach & Peyton, 2000
- Genus Opifex Hutton, 1902
- Genus Orthopodomyia Theobald, 1904
- Genus Osornomyia Leví-Castillo, 1955 accepted as Haemagogus Williston, 1896
- Genus Paleoculicis Poinar, Zavortink, Pike & Johnston, 2000
- Genus Panoplites Theobald, 1901 accepted as Mansonia Blanchard, 1901
- Genus Paramyzomyia Christophers & Barraud, 1931 accepted as Paramyzomyia Christophers, 1933
- Genus Paramyzomyia Christophers, 1933 accepted as Anopheles Meigen, 1818
- Genus Pardomyia Theobald, 1907
- Genus Patmarksia Reinert, Harbach & Kitching, 2006
- Genus Pecomyia Theobald, 1905
- Genus Pectinopalpus Theobald, 1909
- Genus Pentemyia Dyar, 1919
- Genus Petermattinglyius Reinert, Harbach & Kitching, 2009
- Genus Peytonulus Harbach, 1991
- Genus Phagomyia Theobald, 1905
- Genus Phalangomyia Dyar & Knab, 1914
- Genus Phenacomyia Harbach & Peyton, 1992
- Genus Philodendromyia Theobald, 1907
- Genus Pholeomyia Reinert, Harbach & Kitching, 2008 accepted as Ochlerotatus Lynch-Arribalzaga, 1891
- Genus Phoniomyia Theobald, 1903
- Genus Phytotelmatomyia Rossi & Harbach, 2008 accepted as Culex Linnaeus, 1758
- Genus Pneumaculex Dyar, 1905
- Genus Polylepidomyia Theobald, 1905
- Genus Polyleptiomyia Theobald, 1905
- Genus Popea Ludlow, 1905
- Genus Priscoculex Poinar, Zavortink & Brown, 2019 †
- Genus Prosopolepis Lutz, 1905
- Genus Protoculex Felt, 1904
- Genus Protomacleaya Theobald, 1907
- Genus Protomelanoconion Theobald, 1909
- Genus Pseudalbuginosus Huang & Rueda, 2015 accepted as Aedes Meigen, 1818
- Genus Pseudarmigeres Stone & Knight, 1956
- Genus Pseudocarrollia Theobald, 1910
- Genus Pseudoculex Dyar, 1905
- Genus Pseudoficalbia Theobald, 1912
- Genus Pseudograbhamia Theobald, 1905
- Genus Pseudograhamia Theobald, 1910
- Genus Pseudoheptaphlebomyia Ventrillon, 1905
- Genus Pseudohowardina Theobald, 1907
- Genus Pseudoskusea Theobald, 1907
- Genus Pseudostegomyia Ludlow, 1908
- Genus Pseudostegomyia Theobald, 1910
- Genus Pseudotaeniorhynchus Theobald, 1911 accepted as Coquillettidia Dyar, 1905
- Genus Pseudotheobaldia Theobald, 1907
- Genus Pseudouranotaenia Theobald, 1905
- Genus Psorophora Robineau-Desvoidy, 1827
- Genus Pyretophorus Blanchard, 1902
- Genus Quasistegomyia Theobald, 1906
- Genus Rachionotomyia Theobald, 1905
- Genus Rachisoura Theobald, 1910
- Genus Radioculex Theobald, 1908
- Genus Rampamyia Reinert, Harbach & Kitching, 2006
- Genus Ravenalites Doucet, 1950
- Genus Reedomyia Ludlow, 1905
- Genus Reinertia Somboon, Namgay & Harbach, 2021 accepted as Aedes Meigen, 1818
- Genus Rhynchotaenia Brèthes, 1911 accepted as Pseudotaeniorhynchus Theobald, 1911
- Genus Rossia Theobald, 1902
- Genus Runchomyia Theobald, 1903
- Genus Russellia Vargas, 1943
- Genus Sabethes Robineau-Desvoidy, 1827
- Genus Sabethinus Lutz in Bourroul, 1904
- Genus Sabethoides Theobald, 1903
- Genus Sabettinus Blanchard, 1905
- Genus Sabettoides Blanchard, 1905
- Genus Sabettus Agassiz, 1846 accepted as Sabethes Robineau-Desvoidy, 1827
- Genus Sallumia Reinert, Harbach & Kitching, 2008 accepted as Ochlerotatus Lynch-Arribalzaga, 1891
- Genus Scutomyia Theobald, 1904
- Genus Sebethes
- Genus Shannonesia Fonseca & Silva Ramos, 1940 accepted as Anopheles Meigen, 1818
- Genus Shannoniana Lane & Cerqueira, 1942
- Genus Shannoniella Fonseca & Silva Ramos, 1940 accepted as Shannonesia Fonseca & Silva Ramos, 1940
- Genus Simondella Simond & Laveran, 1902
- Genus Sinoaedes Gong & Lu, 1991
- Genus Sirivanakarnius Tanaka, 2004 accepted as Culex Linnaeus, 1758
- Genus Skeiromyia Leicester, 1908
- Genus Skusea Theobald, 1903
- Genus Spilonympha Motta & Lourenço-de-Oliveira, 2005 accepted as Wyeomyia Theobald, 1901
- Genus Squamomyia Theobald, 1910
- Genus Stegoconops Lutz, 1905
- Genus Stegomyia Theobald, 1901 accepted as Aedes Meigen, 1818
- Genus Stenoscutus Theobald, 1909
- Genus Stethomyia Theobald, 1902
- Genus Suaymyia Thurman, 1959
- Genus Taeniorhynchus Lynch Arribálzaga, 1891
- Genus Tanakaius Reinert, Harbach & Kitching, 2004
- Genus Teromyia Leicester, 1908
- Genus Tewarius Reinert, 2006
- Genus Thaiomyia Bram, 1966
- Genus Theobaldia Neveu-Lemaire, 1902
- Genus Theobaldinella Blanchard, 1905
- Genus Thomasina Newstead & Carter, 1911
- Genus Tinolestes Coquillett, 1905
- Genus Topomyia Leicester, 1908
- Genus Toxorhynchites Theobald, 1901
- Genus Triamyia Dyar, 1919
- Genus Tricholeptomyia Dyar & Shannon, 1925
- Genus Trichopronomyia Theobald, 1905
- Genus Trichoprosopon Theobald, 1901
- Genus Trichorhynchomyia Brunetti, 1912
- Genus Trichorhynchus Theobald, 1905
- Genus Tripteroides Giles, 1904
- Genus Udaya Thurmann, 1954
- Genus Uranotaenia Lynch Arribálzaga, 1891
- Genus Vansomerenis Reinert, Harbach & Kitching, 2006
- Genus Verrallina Theobald, 1903
- Genus Woodius Reinert, Harbach & Kitching, 2009 accepted as Ochlerotatus Lynch-Arribalzaga, 1891
- Genus Worcesteria Banks, 1906
- Genus Wyeomyia Theobald, 1901
- Genus Xyele Reinert, Harbach & Kitching, 2009 accepted as Aedes Meigen, 1818
- Genus Yamada Reinert, Harbach & Kitching, 2008 accepted as Hopkinsius Reinert, Harbach & Kitching, 2008
- Genus Zavortinkius Reinert, 1999
- Genus Zeugnomyia Leicester, 1908
- Genus Zinzala Zavortink, 1986
- Genus Zoromorphus Reinert, Harbach & Kitching, 2009 accepted as Aedes Meigen, 1818
- Family Curtonotidae Enderlein, 1914
- Family Cuterebridae Brauer, 1887
- Family Cylindrotomidae Schiner, 1863
- Family Cypselosomatidae Hendel, 1931
- Family Deuterophlebiidae Edwards, 1922
- Family Dexiidae Sharp, 1887
- Family Deximorpha Brauer & Bergenstamm, 1889 accepted as Tachinidae Bigot, 1853
- Family Diadocidiidae Winnertz, 1863
- Family Diastatidae Hendel, 1917
- Family Dictyodipteridae Rohdendorf, 1961 †
- Family Diopsidae Billberg, 1820
- Family Diplopolyneuridae Rohdendorf, 1962 † accepted as Pediciidae Osten Sacken, 1860
- Family Diptera (awaiting allocation)
- Family Ditomyiidae Kylin, 1919
- Family Dixamimidae † accepted as Chaoboridae Edwards, 1932
- Family Dixidae Schiffner, 1868
- Family Dolichopodidae Latreille, 1809
- Family Drosophilidae Rondani, 1856
- Family Dryomyzidae Schiner, 1864
- Family Dyspolyneuridae Rohdendorf, 1961 †
- Family Elliidae Krzeminska, Blagoderov & Krezmiñski, 1993 †
- Family Empididae Latreille, 1804
- Family Eoditomyiidae Ansorge, 1996 †
- Family Eolimnobiidae Rohdendorf, 1962 †
- Family Eomyiidae Rohdendorf, 1962 †
- Family Eophlebomyiidae Cockerell, 1925 †
- Family Eopleciidae Rohdendorf, 1946 †
- Family Eopolyneuridae Rohdendorf, 1962 †
- Family Eoptychopteridae Handlirsch, 1906 † accepted as Ptychopteridae Osten Sacken, 1862
- Family Eostratiomyiidae Rohdendorf, 1962 †
- Family Ephydridae Zetterstedt, 1837
- Family Eremochaetidae Ussatchov, 1968 †
- Family Eremoneura (awaiting allocation)
- Family Eucaudomyiidae Grimaldi, 2016 †
- Family Eurychoromyiidae endel, 1910 accepted as Lauxaniidae Macquart, 1835
- Family Evocoidae Yeates, Irwin & Wiegmann, 2006
- Family Fanniidae Schnabl & Dziedzicki, 1911
- Family Fergusoninidae Hennig, 1958
- Family Fungivoritidae Rohdendorf, 1946 †
- Family Galliidae Lukashevich & Mostovski, 2023 †
- Family Gasterophilidae Girschner, 1896
- Family Geomyzidae Fallén, 1823 accepted as Opomyzidae Fallén, 1820
- Family Glossinidae Theobald, 1903
- Family Gobryidae McAlpine, 1997
- Family Gracilitipulidae Hong & Wang, 1990 † accepted as Pediciidae Osten Sacken, 1860
- Family Grauvogeliidae Krzemiński, Krzemińska & Papier, 1994 †
- Family Helcomyzidae Hendel, 1924
- Family Heleomyzidae Westwood, 1840
- Family Helomyzidae accepted as Heleomyzidae Westwood, 1840
- Family Helosciomyzidae Steyskal, 1965
- Family Hennigmatidae Shcherbakov, 1995 †
- Family Hesperinidae Walker, 1848
- Family Heterocheilidae McAlpine, 1991
- Family Heteropezidae Schiner, 1868
- Family Hilarimorphidae Williston, 1896
- Family Hippoboscidae Samouelle, 1819
- Family Hippoboscoidea incertae sedis †
- Family Hoffeinsmyiidae Michelsen, 2009 †
- Family Homalocnemiidae Collin, 1928
- Family Huttoninidae Steyskal, 1965
- Family Hybotidae Meigen, 1820
- Family Hyperoscelididae Hardy & Nagatomi, 1960
- Family Hyperpolyneuridae Rohdendorf, 1961 †
- Family Hypodermatidae Rondani, 1856
- Family Inbiomyiidae Buck, 2006
- Family Ironomyiidae McAlpine & Martin, 1966
- Family Iteaphilidae Wahlberg & Johanson, 2018
- Family Kaluginamyiidae Lukashevich, Pepinelli & Currie, 2020 †
- Family Keroplatidae Rondani, 1856
- Family Kovalevisargidae Mostovski, 1997 †
- Family Lauxaniidae Macquart, 1835
- Family Leptidae Burmeister, 1837 accepted as Rhagionidae Latreille, 1802
- Family Lestremiidae accepted as Cecidomyiidae Newman, 1835
- Family Limnorhyphidae Hong, 1983 † accepted as Perissommatidae Colless, 1962
- Family Limoniidae Speiser, 1909
- Family Lonchaeidae Loew, 1861
- Family Lonchopteridae Macquart, 1835
- Family Luanpingitidae Zhang, 1986 †
- Family Lygistorrhinidae Edwards, 1925
- Family Macroceridae Rondani, 1856
- Family Marginidae McAlpine, 1991
- Family Megamerinidae Hendel, 1913
- Family Mesophantasmatidae Rohdendorf, 1962 †
- Family Mesosciophilidae Rohdendorf, 1946 †
- Family Mesothaumaleidae † accepted as Thaumaleidae Bezzi, 1913
- Family Micropezidae Blanchard, 1840
- Family Microphoridae Collin, 1960 accepted as Dolichopodidae Latreille, 1809
- Family Milichiidae Schiner, 1862
- Family Mormotomyiidae Austen, 1936
- Family Muscidae Latreille, 1802
- Family Musidoromimidae Rohdendorf, 1962 †
- Family Mycetobiidae accepted as Anisopodidae Knab, 1912
- Family Mycetophilidae Newman, 1834
- Family Mydaidae accepted as Mydidae Latreille, 1809
- Family Mydidae Latreille, 1809
- Family Mystacinobiidae Holloway, 1976
- Family Mysteromyiidae Grimaldi, 2016 †
- Family Mythicomyiidae Melander, 1902
- Family Nadipteridae Lukashevich, 1995 †
- Family Nannodastiidae Papp, 1980
- Family Natalimyzidae Barraclough & McAlpine, 2006
- Family Nemestrinidae Griffith & Pidgeon, 1832
- Family Neminidae McAlpine, 1983
- Family Neriidae Westwood, 1840
- Family Neurochaetidae McAlpine, 1978
- Family Nothybidae Frey, 1927
- Family Nycteribiidae Samouelle, 1819
- Family Nymphomyiidae Tokunaga, 1932
- Family Ocoidae accepted as Evocoidae Yeates, Irwin & Wiegmann, 2006
- Family Odiniidae Hendel, 1920
- Family Oestridae Leach, 1815
- Family Oligophryneidae Rohdendorf, 1962 † accepted as Anisopodidae Knab, 1912
- Family Oligophrynidae Rohdendorf, 1962 † accepted as Anisopodidae Knab, 1912
- Family Opetiidae Rondani, 1856
- Family Opomyzidae Fallén, 1820
- Family Oreoleptidae Zloty, Sinclair & Pritchard, 2005
- Family Orientisargidae Zhang, 2012 †
- Family Ortalidae Fallén, 1810 accepted as Ulidiidae Macquart, 1835
- Family Otitidae Aldrich, 1932 accepted as Ulidiidae Macquart, 1835
- Family Pachyneuridae Schiner, 1864
- Family Palaeolimnobiidae Zhang, Zhang, Liu & Shangguan, 1986 † accepted as Pediciidae Osten Sacken, 1860
- Family Palaeophoridae Rohdendorf, 1951 †
- Family Palaeopleciidae Rohdendorf, 1962 †
- Family Palaeostratiomyiidae Rohdendorf, 1938 † accepted as Rhagionidae Latreille, 1802
- Family Pallopteridae Loew, 1862
- Family Panthophthalmidae accepted as Pantophthalmidae Bigot, 1882
- Family Pantophthalmidae Bigot, 1882
- Family Parapleciidae Hong, 1983 † accepted as Paraxymyiidae Rohdendorf, 1946 †
- Family Paratendipedidae Hong & Wang, 1990 † accepted as Serendipidae Evenhuis, 1994 †
- Family Paraxymyiidae Rohdendorf, 1946 †
- Family Pediciidae Osten Sacken, 1860
- Family Pelecorhynchidae Enderlein, 1922
- Family Periscelidae accepted as Periscelididae Oldenberg, 1914
- Family Periscelididae Oldenberg, 1914
- Family Perissomatidae Colless, 1962 accepted as Perissommatidae Colless, 1962
- Family Perissommatidae Colless, 1962
- Family Phaeomyiidae Verbeke, 1950
- Family Phasiidae Robineau-Desvoidy, 1830 accepted as Tabanidae Latreille, 1802
- Family Phlebotomidae accepted as Psychodidae Newman, 1834
- Family Phoridae Curtis, 1833
- Family Phragmoligoneuridae Rohdendorf, 1962 † accepted as Protopleciidae Rohdendorf, 1946 †
- Family Piophilidae Macquart, 1835
- Family Pipunculidae Walker, 1834
- Family Platypezidae Fallén, 1815
- Family Platystomatidae Schiner, 1862
- Family Pleciidae Duda, 1930 accepted as Bibionidae Fleming, 1821
- Family Pleciodictyidae Rohdendorf, 1962 † accepted as Protopleciidae Rohdendorf, 1946 †
- Family Pleciofungivoridae Rohdendorf, 1946 †
- Family Pleciomimidae Rohdendorf, 1946 † accepted as Antefungivoridae Rohdendorf, 1938 †
- Family Polleniidae Brauer & Bergenstamm, 1889
- Family Procramptonomyiidae Kovalev, 1985 †
- Family Proneottiophilidae Hennig, 1969 †
- Family Protapioceridae Ren, 1998 †
- Family Protempididae Ussatchov, 1968 †
- Family Protendipedidae Rohdendorf, 1962 †
- Family Protobibionidae Rohdendorf, 1946 †
- Family Protobrachyceridae Rohdendorf, 1962 †
- Family Protobrachycerontidae † accepted as Protobrachyceridae Rohdendorf, 1962 †
- Family Protoligoneuridae Rohdendorf, 1962 † accepted as Protopleciidae Rohdendorf, 1946 †
- Family Protomphralidae Rohdendorf, 1962 †
- Family Protopleciidae Rohdendorf, 1946 †
- Family Protorhyphidae Handlirsch, 1906 †
- Family Protoscatopsidae Rohdendorf, 1946 †
- Family Pseudopomyzidae McAlpine, 1966
- Family Psilidae Macquart, 1835
- Family Psychodidae Newman, 1834
- Family Psychodoidea incertae sedis
- Family Ptychopteridae Osten Sacken, 1862
- Family Pyrgotidae Schiner, 1868
- Family Rangomaramidae Jaschhof & Didham, 2002
- Family Rhaetomyiidae Rohdendorf, 1962 †
- Family Rhagionemestriidae Ussatchov, 1968 †
- Family Rhagionempididae Rohdendorf, 1951 †
- Family Rhagionidae Latreille, 1802
- Family Rhiniidae Brauer & Bergenstamm, 1889
- Family Rhinophoridae Robineau-Desvoidy, 1863
- Family Rhinotoridae Williston, 1896 accepted as Heleomyzidae Westwood, 1840
- Family Rhopalomeridae accepted as Ropalomeridae Schiner, 1868
- Family Rhyphidae Newman, 1834 accepted as Anisopodidae Knab, 1912
- Family Richardidae accepted as Richardiidae Loew, 1868
- Family Richardiidae Loew, 1868
- Family Ropalomeridae Schiner, 1868
- Family Sapromyzidae accepted as Lauxaniidae Macquart, 1835
- Family Sarcophagidae Macquart, 1834
- Family Scathophagidae Cresson, 1918
- Family Scatophagidae Robineau-Desvoidy, 1830 accepted as Scathophagidae Cresson, 1918
- Family Scatopsidae Newman, 1834
- Family Scenopinidae Fallén, 1817
- Family Sciadoceridae Schmitz, 1929
- Family Sciaridae Billberg, 1820
- Family Sciaroidea incertae sedis
- Family Sciomyzidae Fallén, 1820
- Family Sepsidae Walker, 1833
- Family Serendipidae Evenhuis, 1994 †
- Family Siberhyphidae †
- Family Simuliidae Newman, 1834
- Family Sinotendipedidae † accepted as Anisopodidae Knab, 1912
- Family Somatiidae Hendel, 1935
- Family Spaniidae Rondani, 1856 accepted as Rhagionidae Latreille, 1802
- Family Sphaeoroceridae accepted as Sphaeroceridae Macquart, 1835
- Family Sphaeroceridae Macquart, 1835
- Family Stenomicridae Papp, 1984 accepted as Periscelididae Oldenberg, 1914
- Family Stratiomyidae Latreille, 1802
- Family Streblidae Kolenati, 1863
- Family Stronglyophthalmyiidae accepted as Strongylophthalmyiidae Hendel, 1917
- Family Strongylophthalmyiidae Hendel, 1917
- Family Synneuridae Enderlein, 1936 accepted as Canthyloscelidae Shannon, 1927
- Family Syringogastridae Prado, 1969
- Family Syrphidae Latreille, 1802
- Family Tabanidae Latreille, 1802
- Family Tachinidae Bigot, 1853
- Family Tachiniscidae Kertész, 1903
- Family Tanyderidae Osten Sacken, 1880
- Family Tanyderophryneidae Rohdendorf, 1962 † accepted as Chaoboridae Edwards, 1932
- Family Tanypezidae Rondani, 1856
- Family Tephritidae Newman, 1834
- Family Teratomyzidae Colless & McAlpine, 1970
- Family Tethepomyiidae Grimaldi & Arillo, 2008 †
- Family Tethinidae accepted as Canacidae Jones, 1906
- Family Thaumaleidae Bezzi, 1913
- Family Therevidae Newman, 1834
- Family Tillyardipteridae Lukashevich & Shcherbakov, 1999 †
- Family Tipulidae Leach, 1815
- Family Tipulodictyidae Rohdendorf, 1962 †
- Family Tipulopleciidae Rohdendorf, 1962 †
- Family Trichoceridae Rondani, 1841
- Family Trixoscelidae Hendel, 1916 accepted as Heleomyzidae Westwood, 1840
- Family Trypetidae Loew, 1861 accepted as Tephritidae Newman, 1834
- Family Ulidiidae Macquart, 1835
- Family Ulurumyiidae Michelsen & Pape, 2017
- Family Uranorhagionidae Zhang, Yang & Ren, 2010 †
- Family Valeseguyidae Amorim & Grimaldi, 2006
- Family Vermileonidae Williston, 1886
- Family Vladipteridae Shcherbakov, 1995 †
- Family Vosilidae Vršanský & Ren in Vršanský, Ren & Shih, 2010 †
- Family Xenasteiidae Hardy, 1980
- Family Xylomidae accepted as Xylomyidae Verrall, 1901
- Family Xylomyidae Verrall, 1901
- Family Xylophagidae Fallén, 1810
- Family Yantaromyiidae Barták, 2020 †
- Family Zhangobiidae Evenhuis, 1994 † accepted as Pediciidae Osten Sacken, 1860
- Family Zhangsolvidae Nagatomi & Yang, 1998 †
- Genus Apystomimus Mostovski, 1999 †
- Genus Aschizomyia Grimaldi, 2018 †
- Order Embiodea
- Order Endopterygota incertae sedis
- Order Eoblattida †
- Order Ephemeroptera
- Order Eugeroptera †
- Order Geraroptera †
- Order Geroptera †
- Order Glosselytrodea †
- Order Grylloblattodea
- Order Hemiptera
- Order Homoptera accepted as Hemiptera
- Order Hymenoptera
- Order Hypoperlida †
- Order Insecta (awaiting allocation)
- Order Insecta incertae sedis
- Order Isoptera accepted as Blattodea
- Order Kukaloptera †
- Order Lepidoptera
- Order Lophioneurida †
- Order Mallophaga
- Order Mantodea
- Order Mantophasmatodea
- Order Mecoptera
- Order Mecopterida incertae sedis
- Order Megaloptera
- Order Megasecoptera †
- Order Miomoptera †
- Order Neoptera incertae sedis
- Order Neuroptera
- Order Neuropteroidea incertae sedis †
- Order Notoptera
- Order Odonata
- Order Odonatoptera (awaiting allocation) †
- Order Odonatoptera incertae sedis
- Order Orthoptera
- Order Orthopterida incertae sedis
- Order Palaeodictyoptera †
- Order Palaeoptera incertae sedis
- Order Panorthoptera incertae sedis
- Order Paoliida †
- Order Paraneoptera (awaiting allocation)
- Order Perielytrodea †
- Order Permopsocida †
- Order Permotrichoptera †
- Order Phasmatodea
- Order Phasmida accepted as Phasmatodea
- Order Phasmoptera accepted as Phasmatodea
- Order Phthiraptera
- Order Plecoptera
- Order Polyneoptera incertae sedis
- Order Protelytroptera †
- Order Protoblattoidea †
- Order Protocoleoptera † accepted as Protelytroptera †
- Order Protodonata †
- Order Protoelytroptera †
- Order Protohemiptera †
- Order Protohymenoptera †
- Order Protorthoptera †
- Order Protozygoptera †
- Order Psocoptera
- Order Raphidioptera
- Order Siphonaptera
- Order Skleroptera †
- Order Strepsiptera
- Order Tarachoptera †
- Order Thripida incertae sedis
- Order Thysanoptera
- Order Thysanura accepted as Insecta
- Order Titanoptera †
- Order Trichoptera
- Order Zoraptera
- Order Zygentoma
- Genus Bifarius Tasch, 1961 †
- Genus Cyclocephalus Tasch, 1961 †
- Genus Hypatocephala Tasch, 1961 †
- Genus Permolimulinella Tasch, 1963 †
- Genus Strongylocephalus Tasch, 1961 †
- Class Protura
- 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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