| Kingdom | Animalia – Animal, animaux, animals |
| Subkingdom | Bilateria – triploblasts |
| Infrakingdom | Protostomia |
| Superphylum | Ecdysozoa |
| Phylum | Arthropoda |
| Subphylum | Chelicerata – cheliceriformes, quelicerado, queliceriforme |
| Class | Arachnida |
| Order |
| Direct Children: |
| Family | Actinopodidae Simon, 1892 – mouse spiders |
| Family | Agelenidae C. L. Koch, 1837 – funnel weavers |
| Family | Amaurobiidae Thorell, 1870 – hackledmesh weavers |
| Family | Ammoxenidae Simon, 1893 – ammoxenid spiders |
| Family | Amphinectidae Forster & Wilton, 1973 – amphinectid spiders |
| Family | Anapidae Simon, 1895 – anapid spiders |
| Family | Antrodiaetidae Gertsch, in Comstock, 1940 – foldingdoor spiders |
| Family | Anyphaenidae Bertkau, 1878 – ghost spiders |
| Family | Araneidae Clerck, 1757 – orbweavers |
| Family | Archaeidae Koch & Berendt, 1854 – archaeid spiders |
| Family | Arkyidae L. Koch, 1872 |
| Family | Atypidae Thorell, 1870 – purseweb spiders |
| Family | Austrochilidae Zapfe, 1955 – austrochilid spiders |
| Family | Barychelidae Simon, 1889 – brushfooted trapdoor spiders |
| Family | Caponiidae Simon, 1890 – caponiid spiders |
| Family | Chummidae |
| Family | Cithaeronidae Simon, 1893 – cithaeronid spiders |
| Family | Clubionidae Wagner, 1887 – sac spiders |
| Family | Corinnidae Karsch, 1880 – antmimic spiders |
| Family | Ctenidae Keyserling, 1877 – wandering spiders |
| Family | Ctenizidae Thorell, 1887 – trapdoor spiders |
| Family | Cyatholipidae Simon, 1894 – cyatholipid spiders |
| Family | Cybaeidae Banks, 1892 – water spiders |
| Family | Cycloctenidae Simon, 1898 – scuttling spiders |
| Family | Cyrtaucheniidae Simon, 1889 – cyrtaucheiid spiders |
| Family | Deinopidae C. L. Koch, 1850 – ogrefaced spiders |
| Family | Desidae Pocock, 1895 – desid spiders |
| Family | Dictynidae O. P.-Cambridge, 1871 – meshweavers |
| Family | Diguetidae F. O. P.-Cambridge, 1899 – desertshrub spiders |
| Family | Dipluridae Simon, 1889 – funnelweb spiders |
| Family | Drymusidae Simon, 1893 – drymusid spiders |
| Family | Dysderidae C. L. Koch, 1837 – dysderid spiders |
| Family | Eresidae C. L. Koch, 1850 – eresid spiders |
| Family | Filistatidae Ausserer, 1867 – crevice weavers |
| Family | Gallieniellidae Millot, 1947 – gallieniellid spiders |
| Family | Gnaphosidae Pocock, 1898 – stealthy ground spiders |
| Family | Gradungulidae Forster, 1955 – gradungulid spiders |
| Family | Hahniidae Bertkau, 1878 – hahniid spiders |
| Family | Hersiliidae Thorell, 1870 – longspinneret spiders |
| Family | Hexathelidae Simon, 1892 – Australian funnelweb spiders |
| Family | Holarchaeidae Forster & Platnick, 1984 – holarchaeid spiders |
| Family | Homalonychidae Simon, 1893 – dusty desert spiders |
| Family | Huttoniidae Simon, 1893 – huttoniid spiders |
| Family | Hypochilidae Marx, 1888 – lampshade weavers |
| Family | Idiopidae Simon, 1889 – armored trapdoor spiders |
| Family | Lamponidae Simon, 1893 – whitetailed spiders |
| Family | Leptonetidae Simon, 1890 – cave spiders |
| Family | Linyphiidae Blackwall, 1859 – dwarf weavers, sheetweb weavers |
| Family | Liocranidae Simon, 1897 – liocranid spiders |
| Family | Liphistiidae Thorell, 1869 – segmented trapdoor spiders |
| Family | Lycosidae Sundevall, 1833 – wolf spiders |
| Family | Malkaridae Davies, 1980 – shield spiders |
| Family | Mecicobothriidae Holmberg, 1882 – mecicobothriid spiders |
| Family | Mecysmaucheniidae Simon, 1895 – mecysmaucheniid spiders |
| Family | Micropholcommatidae Hickman, 1944 – micropholcommatid spiders |
| Family | Microstigmatidae Roewer, 1942 – microstigmatid spiders |
| Family | Migidae Simon, 1889 – tree trapdoor spiders |
| Family | Mimetidae Simon, 1881 – pirate spiders |
| Family | Miturgidae Simon, 1886 – prowling spiders |
| Family | Mysmenidae Petrunkevitch, 1928 – dwarf cobweb weavers |
| Family | Nemesiidae Simon, 1889 – wishbone spiders, tubetrapdoor spiders |
| Family | Nesticidae Simon, 1894 – cave cobweb spiders |
| Family | Nicodamidae Simon, 1897 – nicodamid spiders |
| Family | Ochyroceratidae Fage, 1912 – ochyroceratid spiders |
| Family | Oecobiidae Blackwall, 1862 – flatmesh weavers |
| Family | Oonopidae Simon, 1890 – dwarf sixeyed spiders |
| Family | Orsolobidae Cooke, 1965 – orsolobid spiders |
| Family | Oxyopidae Thorell, 1870 – lynx spiders |
| Family | Palpimanidae Thorell, 1870 – palpimanid spiders |
| Family | Pararchaeidae Forster & Platnick, 1984 – pararchaeid spiders |
| Family | Paratropididae Simon, 1889 – baldlegged spiders |
| Family | Periegopidae Simon, 1893 – periegopid spiders |
| Family | Philodromidae Thorell, 1870 – running crab spiders |
| Family | Pholcidae C. L. Koch, 1850 – daddylongleg spiders, cellar spiders |
| Family | Phyxelididae Lehtinen, 1967 – phyxelidid spiders |
| Family | Pimoidae Wunderlich, 1986 – pimoid spiders |
| Family | Pisauridae Simon, 1890 – nursery web spiders |
| Family | Plectreuridae Simon, 1893 – plectreurid spiders |
| Family | Psechridae Simon, 1890 – psechrid spiders |
| Family | Salticidae Blackwall, 1841 – jumping spiders |
| Family | Scytodidae Blackwall, 1864 – spitting spiders |
| Family | Segestriidae Simon, 1893 – tunnel spiders |
| Family | Selenopidae Simon, 1897 – selenopid crab spiders |
| Family | Senoculidae Simon, 1890 – senoculid spiders |
| Family | Sicariidae Keyserling, 1880 – sixeyed sicariid spiders |
| Family | Sinopimoidae Li & Wunderlich, 2008 |
| Family | Sparassidae Bertkau, 1872 – giant crab spiders, huntsman spiders |
| Family | Stenochilidae Thorell, 1873 – stenochilid spiders |
| Family | Stiphidiidae Dalmas, 1917 – stiphidiid spiders |
| Family | Symphytognathidae Hickman, 1931 – dwarf orbweavers |
| Family | Synaphridae Wunderlich, 1986 |
| Family | Synotaxidae Simon, 1894 – synotaxid spiders |
| Family | Telemidae Fage, 1913 – telemid spiders |
| Family | Tengellidae Dahl, 1908 – tengellid spiders |
| Family | Tetrablemmidae O. P.-Cambridge, 1873 – tetrablemmid spiders |
| Family | Tetragnathidae Menge, 1866 – longjawed orbweavers |
| Family | Theraphosidae Thorell, 1869 – tarantulas |
| Family | Theridiidae Sundevall, 1833 – cobweb weavers |
| Family | Theridiosomatidae Simon, 1881 – ray orbweavers |
| Family | Thomisidae Sundevall, 1833 – crab spiders |
| Family | Titanoecidae Lehtinen, 1967 – titanoecid spiders |
| Family | Trechaleidae Simon, 1890 – trechaleid spiders |
| Family | Trochanteriidae Karsch, 1879 – trochanteriid spiders |
| Family | Trogloraptoridae Griswold, Audisio & Ledford, 2012 |
| Family | Uloboridae Thorell, 1869 – hackled orbweavers |
| Family | Zodariidae Thorell, 1881 – zodariid spiders |
| Family | Zoridae F. O. P.-Cambridge, 1893 – zorid spiders |
| Family | Zorocratidae Dahl, 1913 – zorocratid spiders |
| Family | Zoropsidae Bertkau, 1882 – zoropsid spiders |
Integrated Taxonomic Information System - Report 
