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
- Class Arachnida
- Order Acari (awaiting allocation)
- Order Acariformes (awaiting allocation)
- Order Actinedida
- Order Amblypygi
- Order Arachnida (awaiting allocation)
- Order Arachnida incertae sedis
- Order Araneae
- Family Acanthoctenidae Simon, 1892 accepted as Ctenidae Keyserling, 1877
- Family Acattymidae Kishida, 1930 accepted as Antrodiaetidae Gertsch, 1940
- Family Acrometidae Wunderlich, 1979 †
- Family Actinopodidae Simon, 1892
- Family Adjutoridae Petrunkevitch, 1942 †
- Family Agelenidae Simon, 1898
- Family Aliendiguetidae Wunderlich & Müller, 2020 †
- Family Amaurobiidae L. Koch, 1868
- Family Ammoxenidae Simon, 1893
- Family Amphinectidae Forster & Wilton, 1973 accepted as Desidae Pocock, 1895
- Family Anamidae Simon, 1889
- Family Anapidae Simon, 1895
- Family Ancylometidae Hazzi, Wood & Hormiga, 2024
- Family Antrodiaetidae Gertsch, 1940
- Family Anyphaenidae Bertkau, 1878
- Family Aphantochilidae Thorell, 1873 accepted as Thomisidae Sundevall, 1833
- Family Aranae incertae sedis
- Family Araneae (awaiting allocation)
- Family Araneidae Clerck, 1758
- Family Araneoidea incertae sedis
- Family Archaeidae Koch & Berendt, 1854
- Family Archaeometidae Petrunkevitch, 1949 †
- Family Archoleptonetidae Gertsch, 1974
- Family Argiopidae Simon, 1890 accepted as Araneidae Clerck, 1758
- Family Argyronetidae Menge, 1869
- Family Arkyidae Koch, 1872
- Family Arthrodictynidae Petrunkevitch, 1942 †
- Family Arthrolycosidae Fric, 1904 †
- Family Arthromygalidae Petrunkevitch, 1923 †
- Family Atracidae Hogg, 1901
- Family Attidae accepted as Salticidae Blackwall, 1841
- Family Atypidae Thorell, 1870
- Family Atypoidea incertae sedis †
- Family Austrochilidae Zapfe, 1955
- Family Aviculariidae Simon, 1874 †
- Family Baltsuccinidae Wunderlich, 2004 †
- Family Barychelidae Simon, 1889
- Family Bemmeridae Simon, 1903
- Family Borboropactidae Wunderlich, 2004 accepted as Thomisidae Sundevall, 1833
- Family Burmascutidae Wunderlich, 2008 †
- Family Burmorsolidae Wunderlich, 2015 †
- Family Calommatoidae Thorell, 1887 accepted as Atypidae Thorell, 1870
- Family Caponidae Simon, 1887 accepted as Caponiidae Simon, 1890
- Family Caponiidae Simon, 1890
- Family Cheiracanthiidae Wagner, 1887
- Family Chimerarachnidae Wunderlich, 2019 †
- Family Chummidae Jocqué, 2001 accepted as Amaurobiidae L. Koch, 1868
- Family Cicurinidae Pickard-Cambridge, 1893
- Family Cithaeronidae Simon, 1893
- Family Clubionidae Simon, 1895
- Family Clubionoidea (awaiting allocation)
- Family Copaldictynidae Wunderlich, 2004 †
- Family Corinnidae Karsch, 1880
- Family Crassicephalidae Wunderlich, 2021 †
- Family Cryptothelidae L. Koch, 1872 accepted as Zodariidae Simon, 1892
- Family Ctenidae Keyserling, 1877
- Family Ctenizidae Thorell, 1887
- Family Cyatholipidae Simon, 1894
- Family Cybaeidae Simon, 1898
- Family Cycloctenidae Simon, 1898
- Family Cyrtaucheniidae Simon, 1892
- Family Deinopidae C.L. Koch, 1850
- Family Desidae Pocock, 1895
- Family Dictynidae O. Pickard-Cambridge, 1871
- Family Diguetidae F.O. Pickard-Cambridge, 1899
- Family Dinopidae accepted as Deinopidae C.L. Koch, 1850
- Family Dipluridae Simon, 1889
- Family Dolomedidae Simon, 1876
- Family Drassidae Sundevall, 1833 accepted as Gnaphosidae Pocock, 1898
- Family Drassodidae Petrunkevitch, 1942 † accepted as Gnaphosidae Pocock, 1898
- Family Drymusidae Simon, 1893
- Family Dubiodeinopsidae Wunderlich, 2021 †
- Family Dubiouloboridae Wunderlich, 2021 †
- Family Dysderidae C.L. Koch, 1837
- Family Entypesidae Bond, Opatova & Hedin, 2020
- Family Eopsilodercidae Wunderlich, 2008 †
- Family Eotibiaapophysidae Wunderlich, 2018 †
- Family Epeiridae Sundevall, 1833 accepted as Araneidae Clerck, 1758
- Family Ephalmatoridae Petrunkevitch, 1958 †
- Family Eresidae C.L. Koch in Berendt, 1845
- Family Erigonidae Gerhardt, 1923 accepted as Linyphiidae Blackwall, 1859
- Family Euagridae Raven, 1979
- Family Euctenizidae Raven, 1985
- Family Eusparassidae †
- Family Filistatidae Simon, 1864
- Family Fonteferreidae Wunderlich, 2013
- Family Fonteferridae Wunderlich, 2013 accepted as Fonteferreidae Wunderlich, 2013
- Family Fossilcalcaridae Wunderlich, 2015 †
- Family Gallieniellidae Millot, 1947
- Family Gigarachnidae Jiang & Li, 2020 †
- Family Gnaphosidae Pocock, 1898
- Family Gradungulidae Forster, 1955
- Family Grandoculidae Penney, 2011 †
- Family Hahniidae Bertkau, 1878
- Family Halidae Jocqué, 1994
- Family Halonoproctidae Pocock, 1901
- Family Heptathelidae Kishida, 1923
- Family Hersiliidae Thorell, 1869
- Family Heteropodidae Thorell, 1873
- Family Hexathelidae Simon, 1892
- Family Hexuridae Simon, 1889 accepted as Antrodiaetidae Gertsch, 1940
- Family Hickmaniidae accepted as Austrochilidae Zapfe, 1955
- Family Holarchaeidae Forster & Platnick, 1984
- Family Homalonychidae Simon, 1893
- Family Huttoniidae Simon, 1893
- Family Hypochilidae Marx, 1888
- Family Idiopidae Simon, 1892
- Family Inceptoridae Petrunkevitch, 1942 †
- Family Insecutoridae Petrunkevitch, 1942 †
- Family Ischnothelidae Pickard-Cambridge, 1897
- Family Juraraneidae Eskov, 1984 †
- Family Lagonomegopidae Eskov & Wunderlich, 1995 †
- Family Lamponidae Simon, 1893
- Family Leptonetidae Simon, 1890
- Family Linyphiidae Blackwall, 1859
- Family Liocranidae Simon, 1897
- Family Liphistiidae Thorell, 1869
- Family Lipistiidae accepted as Liphistiidae Thorell, 1869
- Family Lipistiiidae accepted as Liphistiidae Thorell, 1869
- Family Loxoscelidae Gertsch, 1949
- Family Lycosidae Sundevall, 1833
- Family Lyssomanidae Peckham & Wheeler, 1888 accepted as Salticidae Blackwall, 1841
- Family Macrobunidae Bonnet, 1957
- Family Macrothelidae Simon, 1892
- Family Malkaridae Davies, 1980
- Family Mecicobothriidae Holmberg, 1882
- Family Mecysmaucheniidae Simon, 1895
- Family Megasetidae Wunderlich, 2021 †
- Family Metidae Simon, 1894 accepted as Tetragnathidae Menge, 1866
- Family Micromygalidae Platnick & Forster, 1982
- Family Micropalpimanidae Wunderlich, 2008 †
- Family Micropholcommatidae Hickman, 1943 accepted as Anapidae Simon, 1895
- Family Microstigmatidae Roewer, 1942
- Family Micryphantidae Bertkau, 1872
- Family Migidae Simon, 1892
- Family Mimetidae Simon, 1895
- Family Miturgidae Simon, 1885
- Family Mongolarachnidae Selden, Shih & Ren, 2013 †
- Family Myrmecicultoridae Ramírez, Grismado & Ubick, 2019
- Family Mysmenidae Petrunkevitch, 1928
- Family Nanoaenigmatidae Wunderlich, 2023 †
- Family Nemesiidae Simon, 1889
- Family Neolanidae Forster & Wilton, 1973
- Family Nephilidae
- Family Nesticidae Simon, 1894
- Family Nicodamidae Simon, 1898
- Family Ochyroceratidae Fage, 1912
- Family Oecobiidae Blackwall, 1862
- Family Oonopidae Simon, 1892
- Family Orsolobidae Cooke, 1965
- Family Oxyopidae Thorell, 1870
- Family Pachygnathidae Menge, 1866 accepted as Tetragnathidae Menge, 1866
- Family Pacullidae
- Family Palpimanidae Thorell, 1870
- Family Palpimanoidea incertae sedis
- Family Pararchaeidae Forster & Platnick, 1984
- Family Paratropididae Simon, 1889
- Family Parattidae Petrunkevitch, 1922 †
- Family Parvosegestriidae Wunderlich in Wunderlich & Müller, 2020 †
- Family Penestomidae Simon, 1903
- Family Periegopidae Simon, 1893
- Family Permarachnidae Eskov & Selden, 2005 †
- Family Philodromidae Thorell, 1870
- Family Pholcidae Simon, 1874
- Family Pholcochyroceridae Wunderlich, 2008 †
- Family Phrurolithidae Banks, 1892
- Family Phyxelididae Lehtinen, 1967
- Family Pilosarachnidae Jiang & Li, 2020 †
- Family Pimoidae Wunderlich, 1986
- Family Pisauridae Simon, 1897
- Family Planarchaeidae Wunderlich, 2017 †
- Family Platoridae
- Family Plectreuridae Simon, 1893
- Family Plumorsolidae Wunderlich, 2008 †
- Family Praepholcidae Wunderlich, 2017 †
- Family Praeterleptonetidae Wunderlich, 2008 †
- Family Praetheridiidae Wunderlich, 2004 †
- Family Prodidomidae Simon, 1884
- Family Protheridiidae Wunderlich, 2004 †
- Family Psechridae Simon, 1892
- Family Psilodercidae Machado, 1951
- Family Pycnothelidae Chamberlin, 1917
- Family Pyritaraneidae Petrunkevitch, 1953 †
- Family Rhytidicolidae Simon, 1903
- Family Salticidae Blackwall, 1841
- Genus Abracadabrella Zabka, 1991
- Genus Abracadbrella accepted as Abracadabrella Zabka, 1991
- Genus Accompse Scudder, 1882 accepted as Bavia Simon, 1877
- Genus Acmaea Keyserling in Koch (Keyserling), 1882 accepted as Hypoblemum Peckham, 1886
- Genus Acompse Koch, 1879 accepted as Bavia Simon, 1877
- Genus Acragas Simon, 1900
- Genus Aculeobreda Caporiacco, 1955 accepted as Pachomius Peckham, 1896
- Genus Admestina Peckham, 1888
- Genus Admesturius Galiano, 1988
- Genus Adoxotoma Simon, 1909
- Genus Adoxtoma Waterhouse, 1912 accepted as Adoxotoma Simon, 1909
- Genus Aelurillus Simon, 1885
- Genus Aelurops Thorell, 1870 accepted as Aelurillus Simon, 1885
- Genus Aenigma Wesolowska & Haddad, 2009 accepted as Zulunigma Wesolowska & Cumming, 2011
- Genus Afiola Peckham, 1907 accepted as Ergane Keyserling in Koch (Keyserling), 1881
- Genus Afraflacilla Berland & Millot, 1941
- Genus Afrobeata Caporiacco, 1941
- Genus Afromarengo Benjamin, 2004
- Genus Agassa Simon, 1901 accepted as Sassacus Peckham, 1895
- Genus Agelista Simon, 1900 accepted as Titanattus Peckham, 1885
- Genus Agobardus Keyserling, 1885
- Genus Agorioides Maddison & Szűts, 2019
- Genus Agorius Simon, 1901 accepted as Agorius Thorell, 1877
- Genus Agorius Thorell, 1877
- Genus Ahijuna Rubio, Baigorria & Stolar, 2022
- Genus Aillutticus Galiano, 1987
- Genus Ajaraneola Wesołowska & Russell-Smith, 2011
- Genus Akela Peckham, 1896
- Genus Akeloides Mello-Leitão, 1944 accepted as Tullgrenella Mello-Leitão, 1941
- Genus Albionella Chickering, 1946
- Genus Alcimonotus Simon, 1902 accepted as Chira Peckham & Peckham, 1896
- Genus Alcmena Koch, 1846
- Genus Alfenus Simon, 1902
- Genus Allococalodes Wanless, 1982
- Genus Allodecta Bryant, 1950
- Genus Allohyllus Strand, 1911 accepted as Margaromma Keyserling in Koch (Keyserling), 1882
- Genus Almolinus Petrunkevitch, 1958 †
- Genus Almota Peckham, 1903
- Genus Amatorculus Ruiz & Brescovit, 2005
- Genus Amerotritte Mello-Leitõ, 1944 accepted as Zygoballus Peckham, 1885
- Genus Amilaps Maddison, 2019
- Genus Amoenema Yu & Zhang, 2023
- Genus Amphidraus Simon, 1900
- Genus Amphirape Simon, 1864 accepted as Aphirape Koch, 1850
- Genus Amyca Simon, 1864 accepted as Amycus Koch, 1846
- Genus Amycus Koch, 1846
- Genus Ananeon Richardson, 2013
- Genus Anarrhotus Simon, 1902
- Genus Anasaitis Bryant, 1950
- Genus Anaurus Simon, 1900
- Genus Ancepitilobus Richardson, 2016
- Genus Anicius Chamberlin, 1925
- Genus Anokopsis Vianna & Soares, 1980 accepted as Rudra Peckham, 1885
- Genus Ansienulina Wesołowska, 2015
- Genus Antillattus Bryant, 1943
- Genus Antillatus
- Genus Apamamia Roewer, 1944 accepted as Plexippus Koch, 1846
- Genus Apatita Mello-Leitão, 1933 accepted as Erica Peckham, 1892
- Genus Aphirape Koch, 1850
- Genus Apricia Richardson, 2016
- Genus Arachnomura Mello-Leitao, 1918
- Genus Arachnotermes Mello-Leitão, 1928
- Genus Araegeus Simon, 1901
- Genus Araneotanna Özdikmen & Kury, 2006
- Genus Arasia Simon, 1901
- Genus Arindas Mello-Leitão, 1933 accepted as Zuniga Peckham, 1892
- Genus Arnoliseus Braul in Braul & Lise, 2002
- Genus Artabrus Simon, 1902
- Genus Aruana Strand, 1911
- Genus Aruattus Logunov & Azarkina, 2008
- Genus Asamonea Simon, 1885 accepted as Asemonea O. Pickard-Cambridge, 1869
- Genus Asaphobelis Simon, 1902
- Genus Asaracus Koch, 1846
- Genus Asculus Thorell, 1894 accepted as Myrmarachne MacLeay, 1838
- Genus Ascyltus Karsch, 1878
- Genus Asemonea O. Pickard-Cambridge, 1869
- Genus Ashtabula Peckham, 1894
- Genus Asianellus Logunov & Hęciak, 1996
- Genus Astaenorchestes Simon, 1900 accepted as Hispo Simon, 1886
- Genus Astia Keyserling in Koch, 1879
- Genus Astilodes Żabka, 2009
- Genus Astituta Strand, 1929 accepted as Astia Keyserling in Koch, 1879
- Genus Atelurius Simon, 1901
- Genus Athamas O. Pickard-Cambridge, 1877
- Genus Atomosphyrus Simon, 1902
- Genus Atrytone Keyserling in Koch (Keyserling), 1883 accepted as Tara Peckham, 1886
- Species Atrytone anomala Keyserling, 1882 accepted as Tara anomala (Keyserling, 1882)
- Genus Atta Simon, 1864 accepted as Attus Walckenaer, 1805
- Genus Attidops Banks, 1905
- Genus Attinella Banks, 1905 accepted as Sitticus Simon, 1901
- Genus Attoides Brongniart, 1877 †
- Genus Attopsis Gourret, 1887 † accepted as Eoattopsis Petrunkevitch, 1955 †
- Genus Attulus Simon, 1889
- Genus Attus Walckenaer, 1805 accepted as Salticus Latreille, 1804
- Genus Augustaea Szombathy, 1915
- Genus Augustea Szombathy accepted as Augustaea Szombathy, 1915
- Genus Avakubia Lessert, 1927 accepted as Pellolessertia Strand, 1929
- Genus Avarua Marples, 1955 accepted as Avaruarachne Sherwood, 2021
- Genus Avaruarachne Sherwood, 2021
- Genus Avitus Peckham, 1896
- Genus Bacelarella Berland & Millot, 1945
- Genus Bagheera Peckham, 1896
- Genus Balla Simon, 1864 accepted as Ballus Koch, 1850
- Genus Ballagascar Azarkina & Haddad, 2020
- Genus Ballognatha Caporiacco, 1935
- Genus Ballus Koch, 1850
- Genus Balmaceda Peckham, 1894
- Genus Banksetosa Chickering, 1946
- Genus Barraina Richardson, 2013
- Genus Baryphas Simon, 1902
- Genus Bathippus Thorell, 1890
- Genus Bavia Simon, 1877
- Genus Baviola Simon, 1898
- Genus Bavirecta Kanesharatnam & Benjamin, 2018 accepted as Padillothorax Simon, 1901
- Genus Beata Peckham, 1895
- Genus Beccaria Caporiacco, 1947 accepted as Noegus Simon, 1900
- Genus Belippo Simon, 1909
- Genus Belliena Simon, 1902
- Genus Bellota Peckham & Peckham, 1892
- Genus Bianor Peckham & Peckham, 1886
- Genus Bindax Thorell, 1892
- Genus Bizone Simon, 1903 accepted as Myrmarachne MacLeay, 1838
- Genus Bizonella Strand, 1929 accepted as Myrmarachne MacLeay, 1838
- Genus Blaisea Simon, 1903 accepted as Tusitala Peckham, 1902
- Genus Bocus Peckham & Peckham, 1892
- Genus Bocusoides Wang & Li, 2022
- Genus Boethoportia Hogg, 1915 accepted as Portia Karsch, 1878
- Genus Boethuola Strand, 1929 accepted as Spartaeus Thorell, 1891
- Genus Boethus Thorell, 1878 accepted as Spartaeus Thorell, 1891
- Genus Bokokius Roewer, 1942
- Genus Bootes Peckham, 1885 accepted as Margaromma Keyserling in Koch (Keyserling), 1882
- Genus Brancus Simon, 1902
- Genus Breda Peckham & Peckham, 1894
- Genus Bredana Gertsch, 1936
- Genus Bredops Mello-Leitão, 1944 accepted as Breda Peckham & Peckham, 1894
- Genus Brettus Thorell, 1895
- Genus Bristowia Reimoser, 1934
- Genus Bryantella Chickering, 1946
- Genus Bulolia Zabka, 1996
- Genus Burmattus Prószyński, 1991
- Genus Bythocrotus Simon, 1903
- Genus Calilinus Wunderlich, 2004 †
- Genus Calliethera Koch, 1837
- Genus Callietherus Simon, 1868
- Genus Calliethira Agassiz, 1846
- Genus Calositticus Lohmander, 1944
- Genus Calxattus Wang, Yu & Zhang, 2023
- Genus Camponia Badcock, 1932 accepted as Menemerus Simon, 1869
- Genus Canama Simon, 1903
- Genus Capeta Ruiz & Brescovit, 2005
- Genus Capeyorkia Richardson, 2016
- Genus Capidava Simon, 1902
- Genus Carabella Chickering, 1946
- Genus Caribattus Bryant, 1950
- Genus Carrhotus Thorell, 1891
- Genus Cavillator Wesolowska, 1999
- Genus Ceglusa Thorell, 1895
- Genus Cembalea Wesolowska, 1993
- Genus Cenattus Petrunkevitch, 1942 †
- Genus Ceriomura Simon, 1901
- Genus Cerionesta Simon, 1901
- Genus Chalcolecta Simon, 1884
- Genus Chalcolemia Zhang & Maddison, 2012
- Genus Chalcoscirtus Bertkau, 1883
- Genus Chalcosibiricus Marusik, 1991 accepted as Chalcoscirtus Bertkau, 1883
- Genus Chalcotropis Simon, 1902
- Genus Chalcovietnamicus Marusik, 1991
- Genus Chapoda Peckham, 1896
- Genus Charippus Thorell, 1895
- Genus Cheliceroides Zabka, 1985 accepted as Colopsus Simon, 1902
- Genus Cheliferoides Cambridge, 1901
- Genus Chinattus Logunov, 1999
- Genus Chinophrys Zhang & Maddison, 2012
- Genus Chinoscopus Simon, 1901
- Genus Chira Peckham & Peckham, 1896
- Genus Chirothecia Taczanowski, 1878
- Genus Chloridusa Simon, 1902 accepted as Sidusa Peckham, 1895
- Genus Chrysilla Thorell, 1887
- Genus Cineas Simon, 1901 accepted as Sarinda Peckham, 1892
- Genus Ciris Koch, 1846
- Genus Clynotis Simon, 1901
- Genus Clynotoides Mello-Leitão, 1944
- Genus Cobanus Cambridge, 1900
- Genus Cocala Simon, 1864 accepted as Cocalus Koch, 1846
- Genus Cocalodes Pocock, 1897
- Genus Cocalus Koch, 1846
- Genus Coccorchestes Thorell, 1881
- Genus Codeta Simon, 1900 accepted as Gelotia Thorell, 1890
- Genus Colaxes Simon, 1900
- Genus Colonus Cambridge, 1900
- Genus Colopsus Simon, 1902 accepted as Evarcha Simon, 1902
- Genus Colyttus Thorell, 1891
- Genus Commoris Simon, 1902
- Genus Compsodecta Simon, 1903
- Genus Consignis Simon, 1900 accepted as Consingis Simon, 1900
- Genus Consingis Simon, 1900 accepted as Peckhamia Simon, 1900
- Genus Copocrossa Simon, 1901
- Genus Coprocrossa Simon, 1901 accepted as Copocrossa Simon, 1901
- Genus Corambis Simon, 1901
- Genus Corcovetella Galiano, 1975
- Genus Corrhotus Simon, 1902 accepted as Carrhotus Thorell, 1891
- Genus Corticattus Zhang & Maddison, 2012
- Genus Corusca Zhou & Li, 2013
- Genus Coryphasia Simon, 1902
- Genus Corythalia Koch, 1850
- Genus Cosmophasis Simon, 1901
- Genus Cotinusa Simon, 1900
- Genus Crulsia Mello-Leitão, 1930 accepted as Chira Peckham & Peckham, 1896
- Genus Cucudeta Maddison, 2009
- Genus Curubis Simon, 1902
- Genus Cybele Peckham, 1894 accepted as Eustiromastix Simon, 1902
- Genus Cybra
- Genus Cydonia Peckham, 1894 accepted as Cerionesta Simon, 1901
- Genus Cylistella Simon, 1901
- Genus Cyllobelus Simon, 1886 accepted as Natta Karsch, 1879
- Genus Cyllodania Simon, 1902
- Genus Cynapes Simon, 1900
- Genus Cyrba Simon, 1876
- Genus Cyrene Peckham, 1894 accepted as Nycerella Galiano, 1982
- Genus Cytaea Keyserling in Koch (Keyserling), 1883
- Genus Damoetas Peckham, 1885
- Genus Darwinneon Cutler, 1971
- Genus Dasycyptus Simon, 1902
- Genus Dasyophrys Mello-Leitão, 1930 accepted as Hypaeus Simon, 1900
- Genus Davidia Schenkel, 1963 accepted as Davidina Brignoli, 1985
- Genus Davidina Brignoli, 1985
- Genus Deloripa Simon, 1901
- Genus Dendriphantes Ausserer, 1867 accepted as Dendryphantes Koch, 1837
- Genus Dendroicius Lin & Li, 2020
- Genus Dendryphantes Koch, 1837
- Genus Denryphantes Marx, 1862 accepted as Dendryphantes Koch, 1837
- Genus Depreissia Lessert, 1942
- Genus Descangeles Wunderlich, 1988 †
- Genus Descanso Peckham, 1892
- Genus Detalik Wesołowska, 2021
- Genus Dexippus Thorell, 1891
- Genus Dia Koch, 1850 accepted as Aelurillus Simon, 1885
- Genus Diagondas Simon, 1902 accepted as Carrhotus Thorell, 1891
- Genus Dinattus Bryant, 1943
- Genus Diolenius Thorell, 1870
- Genus Diplocanthopoda Abraham, 1925
- Genus Discocnemius Thorell, 1881 accepted as Ligonipes Karsch, 1878
- Genus Distanilinus Wunderlich, 2004 †
- Genus Dolichoneon Caporiacco, 1935
- Genus Donaldius Chickering, 1946
- Genus Donatinus Chickering, 1946 accepted as Simprulla Simon, 1901
- Genus Donoessus Simon, 1902
- Genus Drepanephora Keyserling in Koch (Keyserling), 1883 accepted as Hypoblemum Peckham, 1886
- Genus Drepanophora Simon, 1901 accepted as Hypoblemum Peckham, 1886
- Genus Drobinka Wesołowska, 2021
- Genus Druzia Ruiz & Brescovit, 2013
- Genus Dryphias Simon, 1901 accepted as Beata Peckham, 1895
- Genus Dudasia Strand, 1911 accepted as Bathippus Thorell, 1890
- Genus Dynamius Simon, 1888 accepted as Corythalia Koch, 1850
- Genus Eburneana Wesolowska & Szüts, 2001
- Genus Echeclus Thorell, 1890
- Genus Echinussa Simon, 1901
- Genus Ecuadattus Zhang & Maddison, 2012
- Genus Edilemma Ruiz & Brescovit, 2006
- Genus Efate Berland, 1938
- Genus Emathis Simon, 1899
- Genus Emertonius Peckham, 1892
- Genus Empanda Simon, 1903
- Genus Encolpius Simon, 1900
- Genus Encymachus Simon, 1902
- Genus Enophrys Lucas, 1878 accepted as Euophrys Koch in Panzer, 1834
- Genus Enoplomischus Giltay, 1931
- Genus Eoattopsis Petrunkevitch, 1955 †
- Genus Eoatypus McCook, 1888 †
- Genus Eolinus Petrunkevitch, 1942 †
- Genus Epeus Peckham, 1885
- Genus Ephippus Thorell, 1881 accepted as Zenodorus Peckham, 1886
- Genus Epiblemum Hentz, 1831
- Genus Epicalus Simon, 1885 accepted as Zenodorus Peckham, 1886
- Genus Epicharmus Simon, 1900 accepted as Chinoscopus Simon, 1901
- Genus Epidelaxia Simon, 1902
- Genus Epidelaxis Simon, 1902
- Genus Epigyphantes Saaristo & Tanasevitch, 2004
- Genus Epocilla Thorell, 1887
- Genus Erasinus Simon, 1899
- Genus Erasmia Keyserling in Koch (Keyserling), 1882 accepted as Iona Peckham, 1885
- Genus Eremitarys Wang, Yu & Zhang, 2024
- Genus Ergane Keyserling in Koch (Keyserling), 1881
- Genus Erica Peckham, 1892
- Genus Ericulus Simon, 1885 accepted as Bianor Peckham & Peckham, 1886
- Genus Eris Koch, 1846
- Genus Escambia Peckham, 1896 accepted as Corythalia Koch, 1850
- Genus Eugasmia Simon, 1902 accepted as Carrhotus Thorell, 1891
- Genus Eulabes Keyserling in Koch (Keyserling), 1883 accepted as Simaetha Thorell, 1881
- Genus Euochin Prószyński, 2018
- Genus Euophrys Koch in Panzer, 1834
- Genus Eupalia Simon, 1899 accepted as Viciria Thorell, 1877
- Genus Eupalina Strand, 1932 accepted as Viciria Thorell, 1877
- Genus Eupoa Zabka, 1985
- Genus Euryattus Thorell, 1881
- Genus Eustirognathus Pocock, 1898 accepted as Bindax Thorell, 1892
- Genus Eustiromastix Simon, 1902
- Genus Evacin Prószyński, 2018
- Genus Evagoratus Zhang, Sun & Zhang, 1994 †
- Genus Evalba Prószyński, 2018
- Genus Evaneg Prószyński, 2018
- Genus Evarcha Simon, 1902
- Genus Evawes Prószyński, 2018
- Genus Evenus Simon, 1877 accepted as Epeus Peckham, 1885
- Genus Evippa Simon, 1882
- Genus Evophrys Agassiz, 1846 accepted as Euophrys Koch in Panzer, 1834
- Genus Eyukselus Özdikmen, 2007
- Genus Featheroides Peng, Yin, Xie & Kim, 1994
- Genus Festucula Simon, 1901
- Genus Finger Wesołowska & Wiśniewski, 2023
- Genus Flacilla Simon, 1901 accepted as Flacillula Strand, 1932
- Genus Flacilloides Denis, 1954 accepted as Afraflacilla Berland & Millot, 1941
- Genus Flacillula Strand, 1932
- Genus Fluda Peckham, 1892
- Genus Flurica Perger & Rubio, 2022
- Genus Foliabitus Zhang & Maddison, 2012
- Genus Foordus Azarkina, 2024
- Genus Frespera Braul & Lise in Braul & Lise, 2002
- Genus Frewena Richardson, 2013
- Genus Freya Koch, 1850
- Genus Frigga Koch, 1850
- Genus Fritzia Cambridge, 1879
- Genus Fuentes Peckham, 1894
- Genus Furculattus Balogh, 1980
- Genus Galianora Maddison, 2006
- Genus Gambaquezonia Barrion & Litsinger, 1995
- Genus Gangus Simon, 1902
- Genus Gastromicans Mello-Leitaõ, 1918
- Genus Gavarilla Ruiz & Brescovit, 2006
- Genus Gedea Simon, 1902
- Genus Gelotia Thorell, 1890
- Genus Gertschia Kaston, 1945 accepted as Synageles Simon, 1876
- Genus Gertschnusa Mello-Leitão, 1947 accepted as Cotinusa Simon, 1900
- Genus Ghatippus Marathe & Maddison, 2024
- Genus Ghelna Maddison, 1996
- Genus Ghumattus Prószyński, 1991
- Genus Giuiria Strand, 1906
- Genus Goajara Peckham, 1907 accepted as Epocilla Thorell, 1887
- Genus Goleba Wanless, 1980
- Genus Goleta Peckham, 1894
- Genus Gophoa Simon, 1901 accepted as Cotinusa Simon, 1900
- Genus Gorgasella Chickering, 1946
- Genus Gorgopis Menge in Berendt, 1854 † accepted as Gorgopsina Petrunkevitch, 1955 †
- Genus Gorgopsidis Wunderlich, 2004 †
- Genus Gorgopsina Petrunkevitch, 1955 †
- Genus Goya Mello-Leitão, 1945 accepted as Chira Peckham & Peckham, 1896
- Genus Gramenca Rollard & Wesolowska, 2002
- Genus Grauenulla
- Genus Grayenulla Zabka, 1992
- Genus Grayenuula
- Genus Gueckettia Mello-Leitão, 1933 accepted as Quekettia Peckham, 1902
- Genus Guizygiella
- Genus Guriurius Marta, Bustamante, Ruiz & Rodrigues, 2022
- Genus Gypogyna Simon, 1900
- Genus Habrocestoides Prószyński, 1991
- Genus Habrocestum Simon, 1876
- Genus Habronattus Cambridge, 1901
- Genus Hadrosoma Keyserling in Koch (Keyserling), 1883 accepted as Margaromma Keyserling in Koch (Keyserling), 1882
- Genus Hakka Berry & Prószyński, 2001
- Genus Haplopsecas Caporiacco, 1955
- Genus Harmochirus Simon, 1885
- Genus Hasarina Schenkel, 1963
- Genus Hasarinella Wesołowska, 2012
- Genus Hasarius Simon, 1872
- Genus Haterius Simon, 1900 accepted as Ligonipes Karsch, 1878
- Genus Havaika Prószyński, 2001
- Genus Helafricanus Wesołowska, 1986
- Genus Helicius Prószyński, 1976
- Genus Helicius Zabka, 1981
- Genus Heliocapensis Wesolowska, 1986
- Genus Heliophana Simon, 1864 accepted as Heliophanus Koch in Panzer, 1835
- Genus Heliophanes Boeckh, 1861 accepted as Heliophanus Koch in Panzer, 1835
- Genus Heliophanillus Prószyński, 1989
- Genus Heliophanoides Prószyński, 1991
- Genus Heliophanus Koch in Panzer, 1835
- Genus Helorus Peckham, 1896 accepted as Cobanus Cambridge, 1900
- Genus Helpidius Simon, 1901 accepted as Cobanus Cambridge, 1900
- Genus Helpis Simon, 1901
- Genus Helvetia Peckham, 1894
- Genus Hemsenattus Roewer, 1955 accepted as Aelurillus Simon, 1885
- Genus Hentzia Narx, 1883
- Genus Heratemis Simon, 1899 accepted as Heratemita Strand, 1932
- Genus Heratemita Strand, 1932
- Genus Herilus Thorell, 1894 accepted as Myrmarachne MacLeay, 1838
- Genus Hermosa Peckham, 1892
- Genus Hermotimus Simon, 1903
- Genus Hindumanes Logunov, 2004
- Genus Hinewaia Zabka & Pollard, 2002
- Genus Hispo Simon, 1886
- Genus Hissarinus Charitonov, 1951 accepted as Plexippus Koch, 1846
- Genus Hisukattus Galiano, 1987
- Genus Hivanua Maddison, 2024
- Genus Holcolaetis Simon, 1886
- Genus Holcolethis Simon, 1909 accepted as Holcolaetis Simon, 1886
- Genus Holoplatys Simon, 1885
- Genus Holplatys
- Genus Homalattus White, 1841
- Genus Homalatus
- Genus Huntiglennia Zabka & Gray, 2004
- Genus Hurius Simon, 1901
- Genus Hyctia Simon, 1876 accepted as Marpissa Koch, 1846
- Genus Hyctiota Strand, 1911 accepted as Stagetillus Simon, 1885
- Genus Hyetussa Simon, 1902
- Genus Hylla Simon, 1864 accepted as Hyllus Koch, 1846
- Genus Hyllothyene Caporiacco, 1939 accepted as Pellenes Simon, 1876
- Genus Hyllus Koch, 1846
- Genus Hylus accepted as Hyllus Koch, 1846
- Genus Hypaeus Simon, 1900
- Genus Hypoblemum Peckham, 1886 accepted as Maratus Karsch, 1878
- Genus Iberattus Prószyński, 2018
- Genus Icelus Koch, 1846
- Genus Icidella Strand, 1906 accepted as Marpissa Koch, 1846
- Genus Icius Simon, 1876
- Genus Ictidops Fickert, 1876 accepted as Aelurillus Simon, 1885
- Genus Idastrandia Strand, 1929
- Genus Ida-Strandia Strand, 1929 accepted as Idastrandia Strand, 1929
- Genus Ilarginus Mello-Leitão, 1939 accepted as Chira Peckham & Peckham, 1896
- Genus Ilargus Simon, 1901
- Genus Imperceptus Prószyński, 1991
- Genus Incestophantes Tanasevitch, 1992
- Genus Indomarengo Benjamin, 2004
- Genus Indopadilla Caleb & Sankaran, 2019
- Genus Insula Zhou & Li, 2013
- Genus Iola Peckham, 1892 accepted as Myrmarachne MacLeay, 1838
- Genus Iona Peckham, 1885
- Genus Iranattus Prószyński, 1991
- Genus Irura Peckham, 1901
- Genus Islandiana Braendegaard, 1932
- Genus Itata Peckham, 1894
- Genus Jacksonoides Wanless, 1988
- Genus Jacobia Schmidt, 1956 accepted as Hasarius Simon, 1872
- Genus Jajpurattus Prószyński, 1991
- Genus Jaluiticola Roewer, 1944
- Genus Janigena Karsch, 1880 accepted as Myrmarachne MacLeay, 1838
- Genus Janus Koch, 1846 accepted as Myrmarachne MacLeay, 1838
- Genus Jerzego Maddison, 2014
- Genus Johorea Locket, 1982
- Genus Jollas Simon, 1901
- Genus Jotus Koch in Koch (Keyserling), 1881
- Genus Judalana Rix, 1999
- Genus Junxattus Prószyński & Deeleman-Reinhold, 2012 accepted as Chalcovietnamicus Marusik, 1991
- Genus Kakamega Dawidowicz & Wesołowska, 2016 accepted as Kakameganula Wesołowska, 2020
- Genus Kakameganula Wesołowska, 2020
- Genus Kalcerrytus Galiano, 2000
- Genus Karschiola Strand, 1932 accepted as Sandalodes Keyserling in Koch, 1883
- Genus Karschiolina Brignoli, 1985 accepted as Sandalodes Keyserling in Koch, 1883
- Genus Katya Prószyński & Deeleman-Reinhold, 2010
- Genus Kelawakaju Maddison & Ruiz, 2022
- Genus Keyserlingella Peckham, 1892 accepted as Fluda Peckham, 1892
- Genus Kibo Wesołowska & Szűts, 2021
- Genus Kima Peckham, 1902
- Genus Kinhia Zabka, 1985 accepted as Irura Peckham, 1901
- Genus Klamathia Peckham, 1903
- Genus Kolomana Roewer, 1951 accepted as Idastrandia Strand, 1929
- Genus Kupiuka Ruiz, 2010
- Genus Labicymbium Millidge, 1991
- Genus Laetesia Simon, 1908
- Genus Lagnus Keyserling in Koch (Keyserling), 1879
- Genus Lakarobius Berry, Beatty & Prószyński, 1998
- Genus Laminacauda Millidge, 1985
- Genus Lamottella Rollard & Wesolowska, 2002
- Genus Langelurillus Próchniewicz, 1994
- Genus Langerra Zabka, 1985
- Genus Langona Simon, 1901
- Genus Lanuarulla Peckham, 1885 accepted as Lauharulla Keyserling in Koch (Keyserling), 1883
- Genus Lapsamita Ruiz, 2013
- Genus Lapsias Simon, 1900
- Genus Laufeia Simon, 1889
- Genus Lauharulla Keyserling in Koch (Keyserling), 1883
- Genus Lechia Zabka, 1985
- Genus Leda Berendt, 1845 † accepted as Steneattus Bronn in Bronn & Roemer, 1855 †
- Genus Leikung Benjamin, 2004
- Genus Lepidemathis Simon, 1903
- Genus Leptathamas Balogh, 1980
- Genus Leptorchestes Thorell, 1870
- Genus Leptorhoptrum Kulczynski in Chyzer & Kulczynski, 1894
- Genus Letoia Simon, 1900
- Genus Leuserattus Prószyński & Deeleman-Reinhold, 2012
- Genus Leviea Maddison & Szűts, 2019
- Genus Lictor Wesołowska & Wiśniewski, 2023
- Genus Ligdus Thorell, 1895
- Genus Ligonipes Karsch, 1878
- Genus Ligurinus Karsch, 1878 accepted as Sandalodes Keyserling in Koch, 1883
- Genus Ligurra Simon, 1903
- Genus Lilliput Wesolowska & Russell-Smith, 2000
- Genus Limoneta Bosmans & Jocqué, 1983
- Genus Linus Peckham, 1885 accepted as Portia Karsch, 1878
- Genus Loeblica Logunov, 2020 accepted as Tisaniba Zhang & Maddison, 2014
- Genus Logunattus Wang & Li, 2023 †
- Genus Logunyllus Prószyński, 2016 accepted as Pseudomogrus Simon, 1937
- Genus Lokina Yu, Maddison & Zhang, 2023
- Genus Longarenus Simon, 1903
- Genus Lophostica Simon, 1902
- Genus Lumptibiella Rubio, Baigorria & Stolar, 2022
- Genus Lurio Simon, 1901
- Genus Luxuria Wesolowska, 1989
- Genus Lycidas Karsch, 1878
- Genus Lyssomanes Hentz, 1845
- Genus Lyssomonea Chamberlin & Ivie, 1936 accepted as Hypaeus Simon, 1900
- Genus Lyssorthrus Roewer, 1938 accepted as Aruana Strand, 1911
- Genus Lystrocteisa Simon, 1884
- Genus Lystrocteissa Simon, 1884
- Genus Mabellina Chickering, 1946
- Genus Macaroeris Wunderlich, 1991
- Genus Macopaeus Simon, 1900
- Genus Macutula Ruiz in Ruiz & Rodrigo, 2011
- Genus Maddisonia Żabka, 2014
- Genus Madhyattus Prószyński, 1991
- Genus Maenola Simon, 1900
- Genus Maeota Simon, 1901
- Genus Maeotella Bryant, 1950
- Genus Maevia Koch, 1846
- Genus Maeviobeata Caporiacco, 1947 accepted as Hentzia Narx, 1883
- Genus Mago Cambridge, 1882
- Genus Magyarus Zabka, 1985
- Genus Maileus Peckham, 1907
- Genus Makthalia Badcock, 1932 accepted as Corythalia Koch, 1850
- Genus Malizna Wesołowska, 2021
- Genus Malkinella Millidge, 1991
- Genus Malloneta Simon, 1902
- Genus Maltecora Simon, 1909
- Genus Mantisatta Warburton, 1900
- Genus Mantius Thorell, 1891
- Genus Manzuma Azarkina, 2020
- Genus Maratus Karsch, 1878
- Genus Marbellina
- Genus Marchena Peckham, 1909
- Genus Marengo Peckham, 1892
- Genus Marfisa Karsch, 1878
- Genus Margaromma Keyserling in Koch (Keyserling), 1882
- Genus Maripanthus Maddison, 2020
- Genus Marma Simon, 1902
- Genus Marpessa Thorell, 1870 accepted as Marpissa Koch, 1846
- Genus Marpissa Koch, 1846
- Genus Marpissus Simon, 1868 accepted as Marpissa Koch, 1846
- Genus Marptusa Thorell, 1877
- Genus Martella Peckham, 1892
- Genus Marusyllus Prószyński, 2016
- Genus Mashonarus Wesolowska & Cumming, 2002
- Genus Massagris Simon, 1900
- Genus Matagaia Ruiz, Brescovit & Freitas, 2007
- Genus Matinta Ruiz & Maddison, 2019
- Genus Mburuvicha Scioscia, 1993
- Genus Meata Żabka, 1985 accepted as Gedea Simon, 1902
- Genus Megaeupoa Lin & Li, 2020
- Genus Megaloastia Zabka, 1995
- Genus Meleon Wanless, 1984
- Genus Melioranus Tyshchenko, 1965 accepted as Aelurillus Simon, 1885
- Genus Mendoza Peckham, 1894
- Genus Menemerops Prószyński, 1991 accepted as Plexippoides Prószyński, 1976
- Genus Menemerus Simon, 1869
- Genus Mesasigone Tanasevitch, 1989
- Genus Messua Peckham, 1896
- Genus Metacyrba Cambridge, 1901
- Genus Metaphidippus Cambridge, 1901
- Genus Mexcala Peckham, 1902
- Genus Mexigonus Edwards, 2003
- Genus Mica Petrunkevitch, 1925 accepted as Micalula Strand, 1932
- Genus Micalula Strand, 1932
- Genus Microbianor Logunov, 2000
- Genus Microemathis Logunov, 2020
- Genus Microhasarius Simon, 1902
- Genus Microheros Wesolowska & Cumming, 1999
- Genus Microlinus Wunderlich, 2004 †
- Genus Mikrus Wesolowska, 2001
- Genus Mintonia Wanless, 1984
- Genus Mirandia Badcock, 1932 accepted as Gastromicans Mello-Leitaõ, 1918
- Genus Mithion Simon, 1884 accepted as Thyene Simon, 1885
- Genus Modunda Simon, 1901
- Genus Moevia Simon, 1864 accepted as Maevia Koch, 1846
- Genus Mogrus Simon, 1882
- Genus Mollica Simon, 1900 accepted as Zenodorus Peckham, 1886
- Genus Mollika Peckham, 1901 accepted as Zenodorus Peckham, 1886
- Genus Monaga Chickering, 1946
- Genus Mondeku Azarkina & Haddad, 2020
- Genus Monocephalus Smith, 1906
- Genus Monomotapa Wesolowska, 1999
- Genus Mopiopia Simon, 1902
- Genus Mopsolodes Zabka, 1991
- Genus Mopsus Karsch, 1878
- Genus Muziris Simon, 1901
- Genus Myrmage Prószyński, 2016
- Genus Myrmagua Prószyński, 2016
- Genus Myrmanu Prószyński, 2016
- Genus Myrmapana Prószyński, 2016
- Genus Myrmapeni Prószyński, 2016
- Genus Myrmaplata Prószyński, 2016
- Genus Myrmarachne MacLeay, 1838
- Genus Myrmatheca Prószyński, 2016
- Genus Myrmavola Prószyński, 2016 accepted as Hermosa Peckham, 1892
- Genus Myrmecarachne Agassiz, 1846 accepted as Myrmarachne MacLeay, 1838
- Genus Myrmele Prószyński, 2016
- Genus Nagaina Peckham, 1896
- Genus Nandicius Prószyński, 2016
- Genus Nannenus Simon, 1902
- Genus Naphrys Edwards, 2003
- Genus Napoca Simon, 1901
- Genus Natta Karsch, 1879
- Genus Naubolus Simon, 1901
- Genus Neaetha Simon, 1885
- Genus Nebridia Simon, 1902
- Genus Necatia Özdikmen, 2007
- Genus Neccocalus Roewer, 1965 accepted as Portia Karsch, 1878
- Genus Neera Simon, 1876 accepted as Neaetha Simon, 1885
- Genus Neobrettus Wanless, 1984
- Genus Neon Simon, 1876
- Genus Neonella Gertsch, 1936
- Genus Nepalicius Prószyński, 2016 accepted as Okinawicius Prószyński, 2016
- Genus Nerudia Huber, 2000
- Genus Nicylla Thorell, 1890
- Genus Nigorella Wesolowska & Tomasiewicz, 2008
- Genus Nilacantha Peckham in Simon, 1901
- Genus Nilakantha Peckham, 1901
- Genus Nimbarus Rollard & Wesolowska, 2002
- Genus Noegus Simon, 1900
- Genus Nosferattus Ruiz & Brescovit, 2005
- Genus Nungia Zabka, 1985
- Genus Nycerella Galiano, 1982
- Genus Ocnotelus Simon, 1902
- Genus Ocrisiona Simon, 1901
- Genus Ogdenia Peckham, 1908
- Genus Ohilimia Strand, 1911 accepted as Ligonipes Karsch, 1878
- Genus Ohilimnia Strand, 1911
- Genus Oiconistes Gistl, 1848 accepted as Myrmarachne MacLeay, 1838
- Genus Okinawicius Prószyński, 2016
- Genus Omoedus Thorell, 1881
- Genus Omura Peckham, 1894 accepted as Ceriomura Simon, 1901
- Genus Oningis Simon, 1901 accepted as Jollas Simon, 1901
- Genus Onofre Ruiz & Brescovit, 2007
- Genus Onomastus Simon, 1900
- Genus Opisthoncana L. Koch, 1880
- Genus Opisthoncana Strand, 1913
- Genus Opisthoncus Keyserling in Koch (Keyserling), 1880
- Genus Orientattus Caleb, 2020
- Genus Orienticius Prószyński, 2016
- Genus Orissania Prószyński, 1991
- Genus Orsima Simon, 1901
- Genus Orthrus Simon, 1900
- Genus Orvilleus Chickering, 1946
- Genus Osericta Simon, 1901
- Genus Oserictops Mello-Leitão, 1941 accepted as Breda Peckham & Peckham, 1894
- Genus Oviballus Azarkina & Haddad, 2020
- Genus Pachomius Peckham, 1896
- Genus Pachyballus Simon, 1900
- Genus Pachyonomastus Caporiacco, 1947
- Genus Pachypoessa Simon, 1902
- Genus Padilla Peckham, 1894
- Genus Padillothorax Simon, 1901 accepted as Stagetillus Simon, 1885
- Genus Padillothorus Prószyński, 2018
- Genus Palpelius Simon, 1903
- Genus Panachraesta Simon, 1900
- Genus Pancorius Simon, 1902
- Genus Pandisus Simon, 1900
- Genus Panysinus Simon, 1901
- Genus Papuamyr Maddison & Szűts, 2019
- Genus Parabathippus Zhang & Maddison, 2012
- Genus Paracyrba Zabka & Kovac, 1996
- Genus Paradamoetas Peckham, 1885
- Genus Paradecta Bryant, 1950
- Genus Paradescanso Vellard, 1924
- Genus Paraeuophrys Logunov, 2020
- Genus Parafluda Chickering, 1946
- Genus Paraharmochirus Szombathy, 1915
- Genus Paraheliophanus Clark & Benoit, 1977
- Genus Parahelpis Gardzinska & Zabka, 2010
- Genus Parahentzia Bryant, 1943 accepted as Hentzia Narx, 1883
- Genus Parajotus Peckham, 1903
- Genus Paralinus Petrunkevtich, 1942 †
- Genus Paralophostica Soares & Camargo, 1948 accepted as Marma Simon, 1902
- Genus Paramaevia Barnes, 1955 accepted as Maevia Koch, 1846
- Genus Paramarpissa Cambridge, 1901
- Genus Paramodunda Lessert, 1925 accepted as Thyene Simon, 1885
- Genus Paranaia Mello-Leitão, 1941 accepted as Scopocira Simon, 1900
- Genus Paraneaetha Denis, 1947
- Genus Paraphidippus Cambridge, 1901
- Genus Paraphilaeus Zabka, 2003
- Genus Paraplatoides Zabka, 1992
- Genus Paraplexippus Franganillo, 1930
- Genus Paraploitoides
- Genus Parasaitis Bryant, 1950
- Genus Parathiodina Bryant, 1943
- Genus Parevophrys Petrunkevitch, 1942 †
- Genus Parkella Chickering, 1946
- Genus Parnaenus Peckham, 1896
- Genus Partona Simon, 1901 accepted as Chirothecia Taczanowski, 1878
- Genus Parvattus Zhang & Maddison, 2012
- Genus Peckhamia Simon, 1900
- Genus Pelegrina Franganillo, 1930
- Genus Pellap Prószyński, 2016 accepted as Pellenes Simon, 1876
- Genus Pellenattus Maddison, 2017
- Genus Pellenes Simon, 1876
- Genus Pellolessertia Strand, 1929
- Genus Pelmirus Logunov, Marusik & Rakov, 1999 accepted as Pellenes Simon, 1876
- Genus Pelmultus Logunov, Marusik & Rakov, 1999 accepted as Pellenes Simon, 1876
- Genus Pelpaucus Logunov, Marusik & Rakov, 1999 accepted as Pellenes Simon, 1876
- Genus Pelpometus Petrunkevitch, 1928 accepted as Peplometus Simon, 1900
- Genus Pengmarengo Wang & Li, 2022
- Genus Penionomus Simon, 1903
- Genus Pensacola Peckham, 1885
- Genus Pensacolatus Wunderlich, 1988 †
- Genus Pensacolops Bauab, 1983
- Genus Pensacolops Vianna, 1983
- Genus Peplometus Simon, 1900
- Genus Pergasus Thorell, 1894 accepted as Myrmarachne MacLeay, 1838
- Genus Periegops Simon, 1893
- Genus Petemathis Prószyński & Deeleman-Reinhold, 2012
- Genus Petrunkevitchium Strand, 1929
- Genus Phaeacius Simon, 1900
- Genus Phanias Cambridge, 1901
- Genus Pharacocerus Simon, 1902
- Genus Pharcocerus Simon, 1902
- Genus Phasmolia Zhang & Maddison, 2012
- Genus Phaulostylus Simon, 1902
- Genus Phausina Simon, 1902
- Genus Phiale Koch, 1846
- Genus Phidippia Simon, 1864 accepted as Phidippus Koch, 1846
- Genus Phidippus Koch, 1846
- Genus Philaeus Thorell, 1870
- Genus Philates Simon, 1900 accepted as Marengo Peckham, 1892
- Genus Philia Koch, 1846 accepted as Philaeus Thorell, 1870
- Genus Philotheroides Strand, 1934 accepted as Stenaelurillus Simon, 1886
- Genus Philotherus Thorell, 1895
- Genus Phintella Strand, 1906
- Genus Phintelloides Kanesharatnam & Benjamin, 2019
- Genus Phintellosa Wiśniewski & Wesołowska, 2024
- Genus Phintia Simon, 1901 accepted as Tylogonus Simon, 1902
- Genus Phintodes Strand, 1934 accepted as Tylogonus Simon, 1902
- Genus Phlegra Simon, 1876
- Genus Phlegrata Wunderlich, 1988 †
- Genus Phyaces Simon, 1902
- Genus Phyale Koch, 1850 accepted as Phiale Koch, 1846
- Genus Pignus Wesolowska, 1999
- Genus Pilia Simon, 1902
- Genus Piranthus Thorell, 1895
- Genus Pirithous Keyserling in Koch (Keyserling), 1883 accepted as Simaetha Thorell, 1881
- Genus Planamarengo Azarkina & Haddad, 2020
- Genus Planiemen Wesolowska & van Harten, 2007
- Genus Platycryptus Hill, 1979
- Genus Platypsecas Caporiacco, 1955
- Genus Plesiopiuka Ruiz, 2010
- Genus Plexippa Simon, 1864 accepted as Plexippus Koch, 1846
- Genus Plexippoides Prószyński, 1976
- Genus Plexippus Koch, 1846
- Genus Plexipus accepted as Plexippus Koch, 1846
- Genus Plotius Simon, 1902 accepted as Euryattus Thorell, 1881
- Genus Pochyta Simon, 1901
- Genus Pochytoides Wesołowska, 2018
- Genus Poecilorchestes Simon, 1901
- Genus Poessa Simon, 1902
- Genus Polemus Simon, 1902
- Genus Policha Thorell, 1891 accepted as Gelotia Thorell, 1890
- Genus Popcornella Zhang & Maddison, 2012
- Genus Porius Thorell, 1892
- Genus Portia Karsch, 1878
- Genus Poultonella Peckham, 1909
- Genus Pristobaeus Simon, 1902
- Genus Proctonemesia Vianna & Soares, 1978
- Genus Prolinus Petrunkevitch, 1958 †
- Genus Propetes Menge in Berendt, 1854 †
- Genus Propiomarengo Azarkina & Haddad, 2020
- Genus Prostheclina Keyserling in Koch (Keyserling), 1882
- Genus Proszynskia Kanesharatnam & Benjamin, 2019
- Genus Proszynskiana Logunov, 1996
- Genus Psecas Koch, 1850
- Genus Pselcis Simon, 1903
- Genus Psenuc Prószyński, 2016
- Genus Pseudamphidraus Caporiacco, 1947
- Genus Pseudamycus Simon, 1885
- Genus Pseudamycus Szombathy, 1922 accepted as Idastrandia Strand, 1929
- Genus Pseudattulus Caporiacco, 1947
- Genus Pseudemathis Simon, 1902
- Genus Pseudeuophrys Dahl, 1912
- Genus Pseudicius Simon, 1885
- Genus Pseudocorythalia Caporiacco, 1938
- Genus Pseudofluda Mello-Leitão, 1928
- Genus Pseudoheliophanus Schenkel, 1963
- Genus Pseudomaevia Rainbow, 1920
- Genus Pseudomarengo Caporiacco, 1947 accepted as Hispo Simon, 1886
- Genus Pseudomogrus Simon, 1937
- Genus Pseudopartona Caporiacco, 1954
- Genus Pseudoplexippus Caporiacco, 1947
- Genus Pseudosynagelides Zabka, 1991
- Genus Ptocasius Simon, 1885
- Genus Pulcherula Wesołowska & Russell-Smith, 2022
- Genus Pungalina Richardson, 2013
- Genus Pyroderes Simon, 1869 accepted as Myrmarachne MacLeay, 1838
- Genus Pyrophora Simon, 1864 accepted as Myrmarachne MacLeay, 1838
- Genus Pyrophorus Koch, 1837 accepted as Myrmarachne MacLeay, 1838
- Genus Pystira Simon, 1901
- Genus Qingattus Yang, Wang & Zhang, 2024
- Genus Qiongattus Wang & Li, 2023 †
- Genus Quadrica Wesołowska & Wiśniewski, 2023
- Genus Quekettia Peckham, 1902
- Genus Rafalus Prószyński, 1999
- Genus Ramboia Mello-Leitão, 1943 accepted as Sassacus Peckham, 1895
- Genus Rarahu Berland, 1929
- Genus Rhane Cambridge, 1896 accepted as Rhene Thorell, 1869
- Genus Rhanis Koch, 1846 accepted as Rhene Thorell, 1869
- Genus Rhene Thorell, 1869
- Genus Rhenefictus Logunov, 2021
- Genus Rhetenor Simon, 1902
- Genus Rhombonotus Keyserling in Koch (Keyserling), 1879
- Genus Rhomochirus Thorell, 1891 accepted as Ligonipes Karsch, 1878
- Genus Rhondes Simon, 1901 accepted as Hasarius Simon, 1872
- Genus Rhyphelia Simon, 1902
- Genus Roeweriella Kratochvíl, 1932
- Genus Rogmocrypta Simon, 1900
- Genus Romitia Caporiacco, 1947
- Genus Rooseveltia Peckham, 1907 accepted as Ogdenia Peckham, 1908
- Genus Rudakius Prószyński, 2016
- Genus Rudra Peckham, 1885
- Genus Rugathodes Archer, 1950
- Genus Rumburak Wesołowska, Azarkina & Russell-Smith, 2014
- Genus Ruwenzorek Wiśniewski & Wesołowska, 2024
- Genus Saaristattus Logunov & Azarkina, 2008
- Genus Sadala Peckham, 1888 accepted as Cotinusa Simon, 1900
- Genus Sadies Wanless, 1983
- Genus Saitidops Simon, 1901
- Genus Saitis Simon, 1876
- Genus Saitissus Roewer, 1938
- Genus Salpesia Simon, 1901
- Genus Saltafresia Bodner & Maddison, 2012
- Genus Salticus Latreille, 1804
- Genus Sandalodes Keyserling in Koch, 1883
- Genus Saraina Wanless & Clark, 1975
- Genus Saratus Otto & Hill, 2017 accepted as Maratus Karsch, 1878
- Genus Sarinda Peckham, 1892
- Genus Sarindoides Mello-Leitão, 1923
- Genus Sassacus Peckham, 1895
- Genus Savaiia Marples, 1957 accepted as Pseudicius Simon, 1885
- Genus Scaea Koch, 1879 accepted as Servaea Simon, 1888
- Genus Scartes Menge, 1876
- Genus Schenkelia Lessert, 1927
- Genus Scirtetes Koch in Koch (Keyserling), 1879 accepted as Damoetas Peckham, 1885
- Genus Scius Banks, 1896 accepted as Icius Simon, 1876
- Genus Scopocira Simon, 1900
- Genus Scoturius Simon, 1901
- Genus Scythropa Keyserling in Koch, 1883 accepted as Bianor Peckham & Peckham, 1886
- Genus Sebastira Simon, 1901
- Genus Sebastria Simon, 1901
- Genus Selaophora Keyserling in Koch (Keyserling), 1883 accepted as Cosmophasis Simon, 1901
- Genus Selimus Peckham, 1901
- Genus Semiopyla Simon, 1901
- Genus Semnolius Simon, 1902
- Genus Semora Peckham, 1892
- Genus Semorina Simon, 1901
- Genus Servaea Simon, 1888
- Genus Sibianor Logunov, 2000
- Genus Sidusa Peckham, 1895
- Genus Sigytes Simon, 1902
- Genus Siler Simon, 1889
- Genus Silerella Strand, 1906 accepted as Siler Simon, 1889
- Genus Siloca Simon, 1902
- Genus Simaetha Thorell, 1881
- Genus Simaethula Simon, 1902
- Genus Simaethulina Wesołowska, 2012
- Genus Similaria Prószyński, 1991
- Genus Simonella Peckham, 1885 accepted as Synemosyna Hentz, 1831
- Genus Simonurius Galiano, 1988
- Genus Simprulla Simon, 1901
- Genus Simprulloides Mello-Leitão, 1933 accepted as Zuniga Peckham, 1892
- Genus Sinis Thorell, 1878 accepted as Portia Karsch, 1878
- Genus Sinnamora Keyserling in Koch, 1883 accepted as Margaromma Keyserling in Koch (Keyserling), 1882
- Genus Sinoinsula Zhou & Li, 2013
- Genus Sittacus Peckham, 1909 accepted as Sitticus Simon, 1901
- Genus Sittiab Prószyński, 2017
- Genus Sitticulus Dahl, 1926 accepted as Attulus Simon, 1889
- Genus Sitticus Simon, 1901
- Genus Sittiflor Prószyński, 2017 accepted as Calositticus Lohmander, 1944
- Genus Sittilong Prószyński, 2017
- Genus Sittipub Prószyński, 2016
- Genus Sittisax Prószyński, 2017
- Genus Sobara Keyserling in Koch (Keyserling), 1882 accepted as Cosmophasis Simon, 1901
- Genus Sobasina Simon, 1898
- Genus Soesiladeepakius Makhan, 2007
- Genus Soesilarishius Makhan, 2007 accepted as Rhyphelia Simon, 1902
- Genus Sondra Wanless, 1988
- Genus Sonoita Peckham, 1903
- Genus Sparbambus Zhang, Woon & Li, 2006
- Genus Spartaeus Thorell, 1891
- Genus Sphericula Wesołowska & Russell-Smith, 2022
- Genus Spilargis Simon, 1902
- Genus Spinurius Mello-Leitõ, 1941 accepted as Hurius Simon, 1901
- Genus Spiralembolus Wang & Li, 2023 †
- Genus Stagetillus Simon, 1885
- Genus Stasippus Thorell, 1887 accepted as Cyrba Simon, 1876
- Genus Stenaelurillus Simon, 1886
- Genus Steneattus Bronn in Bronn & Roemer, 1855 †
- Genus Stenodeza Simon, 1900
- Genus Stenodina Simon, 1900 accepted as Copocrossa Simon, 1901
- Genus Stergusa Simon, 1889
- Genus Stertinius Simon, 1890
- Genus Stichius Thorell, 1890
- Genus Stoides Peckham, 1909 accepted as Stoidis Simon, 1901
- Genus Stoidis Simon, 1901
- Genus Stridulattus Petrunkevitch, 1926 accepted as Menemerus Simon, 1869
- Genus Suaruna Mello-Leitão, 1945 accepted as Scopocira Simon, 1900
- Genus Sumampattus Galiano, 1983
- Genus Sympolymnia Perger & Rubio, 2020
- Genus Synageles Simon, 1876
- Genus Synagelides Strand, 1906
- Genus Synemosina
- Genus Synemosyna Hentz, 1831
- Genus Tabuina Maddison, 2009
- Genus Tachyscarthmus Bonnet, 1959 accepted as Hasarius Simon, 1872
- Genus Tachyskarthmos Hogg, 1922 accepted as Hasarius Simon, 1872
- Genus Tacuna Peckham, 1901
- Genus Taeoma Mello-Leitão, 1939 accepted as Corythalia Koch, 1850
- Genus Tagoria Schenkel, 1963 accepted as Synagelides Strand, 1906
- Genus Taivala Peckham, 1907
- Genus Talavera Peckham, 1909
- Genus Tamigalesus Zabka, 1988
- Genus Tanna Berland, 1938
- Genus Tanybelus Simon, 1902
- Genus Tanypus Keyserling in Koch (Keyserling), 1882 accepted as Margaromma Keyserling in Koch (Keyserling), 1882
- Genus Tanzania Koçak & Kemal, 2008
- Genus Tapinattus Thorell, 1887 accepted as Menemerus Simon, 1869
- Genus Tapsatella Rubio & Stolar, 2020
- Genus Tara Peckham, 1886
- Genus Taraxella Wanless, 1984
- Genus Tariona Simon, 1902
- Genus Tarne Simon, 1886
- Genus Tarodes Pocock in Willey, 1899
- Genus Tartamura Bustamante & Ruiz, 2017
- Genus Tartari
- Genus Tasa Wesolowska, 1981
- Genus Tatari Berland, 1938
- Genus Tauala Wanless, 1988
- Genus Taupoa Peckham, 1907 accepted as Epeus Peckham, 1885
- Genus Telamonia Thorell, 1887
- Genus Tenkana Marathe, Maddison & Caleb, 2024
- Genus Tenuiballus Azarkina & Haddad, 2020
- Genus Terralonus Maddison, 1996
- Genus Thaiattus Logunov, 2020
- Genus Thammaca Simon, 1901
- Genus Theratoscirtus Simon, 1903 accepted as Thiratoscirtus Simon, 1886
- Genus Theriella
- Genus Therosa Keyserling in Koch (Keyserling), 1882 accepted as Saitis Simon, 1876
- Genus Thianella Strand, 1907
- Genus Thianella Schenkel, 1963 accepted as Tasa Wesolowska, 1981
- Genus Thiania Koch, 1846
- Genus Thianioides Mello-Leitão, 1941 accepted as Breda Peckham & Peckham, 1894
- Genus Thianitara Simon, 1903
- Genus Thianoides Mello-Leitão, 1941 accepted as Breda Peckham & Peckham, 1894
- Genus Thiene Pavesi, 1895 accepted as Thyene Simon, 1885
- Genus Thiodina Simon, 1900
- Genus Thiratoscirtus Simon, 1886
- Genus Thiratoscyrtus Simon, 1902 accepted as Thiratoscirtus Simon, 1886
- Genus Thorellia Keyserling, 1882 accepted as Thorelliola Strand, 1942
- Genus Thorelliola Strand, 1942
- Genus Thotmes Cambridge, 1901 accepted as Plexippus Koch, 1846
- Genus Thrandina Maddison, 2006
- Genus Thya Simon, 1876 accepted as Thyene Simon, 1885
- Genus Thyene Simon, 1885
- Genus Thyenillus Simon, 1910
- Genus Thyenula Simon, 1902
- Genus Thysema Mello-Leitão, 1944 accepted as Marma Simon, 1902
- Genus Tisaniba Zhang & Maddison, 2014
- Genus Tisanibainepta Logunov, 2020
- Genus Titanattus Peckham, 1885
- Genus Toloella
- Genus Tomis Cambridge, 1901 accepted as Sitticus Simon, 1901
- Genus Tomobella Szüts & Scharff, 2009
- Genus Tomocyrba Simon, 1900
- Genus Tomomingi Szüts & Scharff, 2009
- Genus Toticoryx Rollard & Wesolowska, 2002
- Genus Toxeus Koch, 1846
- Genus Trapezocephalus Berland & Millot, 1941
- Genus Trite Simon, 1885
- Genus Truncattus Zhang & Maddison, 2012
- Genus Trydarssus Galiano, 1995
- Genus Tubalaxia Satkunanathan & Benjamin, 2024
- Genus Tularosa Peckham, 1903 accepted as Thyenula Simon, 1902
- Genus Tullgrenella Mello-Leitão, 1941
- Genus Tulpius Peckham, 1896
- Genus Tusitala Peckham, 1902
- Genus Tutelina Simon, 1902
- Genus Tuvaphantes Logunov, 1993
- Genus Tylogonus Simon, 1902
- Genus Udalmella Galiano, 1994
- Genus Udvardya Prószyński, 1991
- Genus Ugandinella Wesolowska, 2006
- Genus Uluella Chickering, 1946
- Genus Ureta Wesołowska & Haddad, 2013
- Genus Uroballus Simon, 1902
- Genus Urogelides Żabka, 2009
- Genus Uspachus Galiano, 1995
- Genus Uxuma Simon, 1902
- Genus Vagiphantes Saaristo & Tanasevitch, 2004
- Genus Vailima Peckham, 1907 accepted as Vailimia Kammerer, 2006
- Genus Vailimia Kammerer, 2006
- Genus Valloa Peckham, 1903 accepted as Harmochirus Simon, 1885
- Genus Vallvonas Szűts, Zhang, Gallé-Szpisjak & De Bakker, 2020
- Genus Variratina Zhang & Maddison, 2012
- Genus Vatovia Caporiacco, 1940
- Genus Veissella Wanless, 1984
- Genus Velloa Peckham, 1903 accepted as Harmochirus Simon, 1885
- Genus Viciria Thorell, 1877
- Genus Vicirionessa Wesołowska & Russell-Smith, 2022
- Genus Vindima Thorell, 1895 accepted as Cyrba Simon, 1876
- Genus Vinnius Simon, 1902
- Genus Viribestus Zhang & Maddison, 2012
- Genus Viroqua Peckham, 1901
- Genus Vitia Marples, 1957 accepted as Hasarius Simon, 1872
- Genus Vitioides Marples in Platnick, 1989 accepted as Hasarius Simon, 1872
- Genus Wallaba Mello-Leitão, 1941
- Genus Wandawe Azarkina & Haddad, 2020
- Genus Wanlessia Wijesinghe, 1992
- Genus Waymadda Szűts, Zhang, Gallé-Szpisjak & De Bakker, 2020
- Genus Wedoquella Galiano, 1984
- Genus Wesolowskana Koçak & Kemal, 2008
- Genus Xenocytaea Berry, Beatty & Prószyński, 1998
- Genus Xuriella Wesolowska & Russell-Smith, 2000
- Genus Yacuitella Galiano, 1999
- Genus Yaginumaella Prószyński, 1976
- Genus Yaginumanis Wanless, 1984
- Genus Yamangalea Maddison, 2009
- Genus Yepoella Galiano, 1970
- Genus Yimbulunga Wesołowska, Azarkina & Russell-Smith, 2014
- Genus Yllenus Simon, 1869
- Genus Yogetor Wesolowska & Russell-Smith, 2000
- Genus Zabka Wang, Li & Pham, 2023
- Genus Zabkattus Zhang & Maddison, 2012
- Genus Zebraplatys Zabka, 1992
- Genus Zenodorus Peckham, 1886
- Genus Zeuxippus Thorell, 1891 accepted as Rhene Thorell, 1869
- Genus Zulunigma Wesolowska & Cumming, 2011
- Genus Zuniga Peckham, 1892
- Genus Zygoballus Peckham, 1885
- Family Salticoididae Wunderlich, 2008 †
- Family Scutuloboridae Wunderlich, 2021 †
- Family Scytodidae Blackwall, 1864
- Family Segestriidae Petrunkevitch, 1933
- Family Selenopidae Simon, 1897
- Family Senoculidae Simon, 1890
- Family Sicariidae Keyserling, 1880
- Family Sinopimoidae Li & Wunderlich, 2008
- Family Sparassidae Bertkau, 1872
- Family Spatiatoridae Petrunkevitch, 1942 †
- Family Stasimopidae Bond, Opatova & Hedin in Opatova et al., 2020
- Family Stenochilidae Thorell, 1873
- Family Stiphidiidae Dalmas, 1917
- Family Succinomidae Wunderlich, 2008 †
- Family Symphytognathidae Hickman, 1931
- Family Synaphridae Wunderlich, 1986
- Family Synotaxidae Simon, 1894
- Family Telemidae Fage, 1913
- Family Tengellidae Dahl, 1908 accepted as Zoropsidae Simon, 1892
- Family Tetrablemmidae Pickard-Cambridge, 1873
- Family Tetragnathidae Menge, 1866
- Family Thaididae Lehtinen, 1967 accepted as Austrochilidae Zapfe, 1955
- Family Theraphosidae Thorell, 1869
- Family Theridiidae Sundevall, 1833
- Family Theridiosomatidae Simon, 1895
- Family Thomisidae Sundevall, 1833
- Family Titanoecidae Lehtinen, 1967
- Family Toxopidae Hickman, 1940
- Family Trachelidae Simon, 1897
- Family Trechaleidae Simon, 1890
- Family Trochanteriidae Karsch, 1879
- Family Trogloraptoridae Griswold, Audisio & Ledford, 2012
- Family Udubidae Polotow, Carmichael & Griswold, 2015
- Family Uloboridae Thorell, 1869
- Family Urocteidae Thorell, 1869 accepted as Oecobiidae Blackwall, 1862
- Family Vetiatoridae Wunderlich, 2015 †
- Family Viridasiidae Lehtinen, 1967
- Family Xenoctenidae Ramírez & Silva-Dávila in Wheeler et al., 2017
- Family Zarqaraneidae Wunderlich, 2008 †
- Family Zodariidae Simon, 1892
- Family Zoridae F.O. Pickard-Cambridge, 1893
- Family Zorocratidae Dahl, 1913 accepted as Zoropsidae Simon, 1892
- Family Zoropsidae Simon, 1892
- Genus Caestaranea Selden, Huang & Garwood, 2019 †
- Genus Onychopalpus Selden, Huang & Garwood, 2019 †
- Order Architarbida †
- Order Astigmata
- Order Haptopodida †
- Order Holothyrida
- Order Ixodida
- Order Mesostigmata
- Order Opilioacarida
- Order Opiliocariformes
- Order Opiliones
- Order Opilionida accepted as Opiliones
- Order Oribatida
- Order Palaeoscorpiones †
- Order Palpigradi
- Order Parasitiformes (awaiting allocation)
- Order Phalangiotarbida
- Order Protoscorpiones †
- Order Pseudoscorpionida
- Order Ricinulei
- Order Ricinuleida accepted as Ricinulei
- Order Schizomida
- Order Scorpiones
- Order Scorpionida accepted as Scorpiones
- Order Solifugae
- Order Solpugida accepted as Solifugae
- Order Trigonotarbida †
- Order Trombidiformes
- Order Uropygi
- Class Merostomata accepted as Xiphosura
- Class Pycnogonida
- Class Xiphosura
- Order Chasmataspidida †
- Order Cyrtoctenida † accepted as Eurypterida †
- Order Eurypterida †
- Order Mollisoniida †
- Family Bunodidae Packard, 1886 †
- Family Offacolidae Sutton, Briggs, Siveter, Siveter & Orr, 2002 †
- Family Pseudoniscidae Packard, 1886 †
- Family Weinberginidae Richter & Richter, 1929 † accepted as Chelicerata
- Genus Anderella Moore, McKenzie & Lieberman, 2007 †
- Genus Borchgrevinkium Novojilov, 1958 †
- Genus Camanchia Moore, Briggs, Braddy & Shultz, 2011 †
- Genus Lagrandella Eldredge, 1974 † accepted as Legrandella Eldredge, 1974 †
- Genus Legrandella Eldredge, 1974 †
- Genus Sarotrocercus Whittington, 1981 †
- Genus Setapedites Lustri, Gueriau & Daley, 2024 †
- Genus Titanoprosoma Bicknell, Kimmig, Smith & Scherer, 2024 †
- Genus Venustulus Moore in Moore et al., 2005 †
- Genus Weinbergina Richter & Richter, 1929 †
- Subphylum Crustacea
- 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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