Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
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- Biota
- Kingdom Animalia
- Phylum Acanthocephala
- Phylum Agmata †
- Phylum Animalia (awaiting allocation)
- Phylum Animalia incertae sedis
- Phylum Annelida
- Phylum Arthropoda
- Subphylum Chelicerata
- Subphylum Crustacea
- 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
- 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
- Family Acrididae MacLeay, 1821
- Family Acridoxenidae
- Family Adumbratomorphidae †
- Family Anostostomatidae Saussure, 1859
- Family Archaeopneumoridae †
- Family Arcypteridae Shumakov, 1963 accepted as Acrididae MacLeay, 1821
- Family Baissogryllidae Gorochov, 1985 †
- Family Batrachideidae
- Family Bintoniellidae †
- Family Biroellidae
- Family Borneacrididae
- Family Bouretidae †
- Family Bradyporidae
- Family Burmecaelidae Uchida, Husemann & Kotthoff, 2023 accepted as Burmecaelinidae Uchida, Husemann & Kotthoff, 2023
- Family Burmecaelinidae Uchida, Husemann & Kotthoff, 2023
- Family Cachoplistidae
- Family Catantopidae accepted as Acrididae MacLeay, 1821
- Family Charilaidae
- Family Chorotypidae
- Family Conocephalidae
- Family Cooloolidae
- Family Cylindrachetidae
- Family Deinotitanidae Gorochov, 2011 †
- Family Dericorythidae
- Family Dzhajloutshellidae Gorochov, 1994 †
- Family Elcanidae Handlirsch, 1906 †
- Family Eneopteridae Kirby, 1906 accepted as Gryllidae Laicharting, 1781
- Family Ensifera incertae sedis †
- Family Episactidae
- Family Eruciidae
- Family Eumastacidae
- Family Euschmidtiidae
- Family Gomphomastacidae
- Family Gryllacrididae Blanchard, 1845
- Family Gryllavidae †
- Family Gryllidae Laicharting, 1781
- Family Gryllotalpidae Leach, 1815
- Family Haglidae Handlirsch, 1906 †
- Family Hagloedischiidae †
- Family Haglotettigoniidae †
- Family Kamiidae Sharov, 1968 †
- Family Lathiceridae
- Family Legendreiidae Huang, Schubnel & Nel, 2020 †
- Family Lentulidae Dirsh, 1956
- Genus Adolfia Rehn, 1914
- Genus Afrotettix Brown, 1970
- Genus Altiusambilla Jago, 1981
- Genus Armstrongium Brown, 2014
- Genus Atopotettix Brown, 1970
- Genus Bacteracris Dirsh, 1956
- Genus Basutacris Dirsh, 1953
- Genus Betiscoides Sjöstedt, 1924
- Genus Calviniacris Dirsh, 1956
- Genus Chromousambilla Jago, 1981
- Genus Devylderia Sjöstedt, 1924
- Genus Dirshidium Brown, 1970
- Genus Eremidium Karsch, 1896
- Genus Gymnidium Karsch, 1896
- Genus Helwigacris Rehn, 1944
- Genus Kalaharicus Brown, 1961
- Genus Karruacris Dirsh, 1958
- Genus Karruia Rehn, 1945
- Genus Koranacris Rehn, 1944
- Genus Leatettix Dirsh, 1956
- Species Leatettix laticornis Dirsh, 1956
- Species Leatettix nasuta Brown, H.D., 1960
- Genus Lentula Stål, 1878
- Genus Limpopoacris Brown, 2011
- Genus Malawia Dirsh, 1968
- Genus Mecostiboides Dirsh, 1957
- Genus Mecostibus Karsch, 1896
- Genus Microusambilla Jago, 1981
- Genus Natalium Otte & Armstrong, 2017 accepted as Eremidium Karsch, 1896
- Genus Nematettix Brown, 1970
- Genus Nyassacris Ramme, 1929
- Genus Occidentula Brown, 1967
- Genus Paralentula Rehn, 1944
- Genus Parasilvanidium Brown, 2016 accepted as Eremidium Karsch, 1896
- Genus Pattana Ramme, 1929
- Genus Pondoidium Brown, 2013 accepted as Eremidium Karsch, 1896
- Genus Qachasia Dirsh, 1956
- Genus Rehnula Uvarov, 1939
- Genus Rhainopomma Jago, 1981
- Genus Shelfordites Karny, 1910
- Genus Silvanidiella Brown, 2013 accepted as Eremidium Karsch, 1896
- Genus Silvanidium Brown, 2012 accepted as Eremidium Karsch, 1896
- Genus Swaziacris Dirsh, 1953
- Genus Tanquata Otte, 2014
- Genus Tsautettix Otte, 2014
- Genus Usambilla Sjöstedt, 1909
- Genus Zulutettix Otte & Armstrong, 2017
- Family Letopalopteridae †
- Family Lezinidae accepted as Anostostomatidae Saussure, 1859
- Family Lithidiidae
- Family Locustavidae Sharov, 1968 †
- Family Locustopseidae Handlirsch, 1906 † accepted as Locustopsidae Handlirsch, 1906 †
- Family Locustopsidae Handlirsch, 1906 †
- Family Macropathidae
- Family Malgasiidae
- Family Mastacideidae
- Family Meconematidae Burmeister, 1838 accepted as Tettigoniidae Krauss, 1902
- Family Mecopodidae
- Family Mesoedischiidae †
- Family Metrodoridae Steinmann, 1962 accepted as Tetrigidae Rambur, 1838
- Family Mimnermidae
- Family Miraculidae
- Family Mogoplistidae Saussure, 1877
- Family Morabidae
- Family Myrmecophilidae
- Family Oecanthidae Blanchard, 1845
- Family Oedipodidae Walker, 1870 accepted as Acrididae MacLeay, 1821
- Family Oedischidae † accepted as Oedischiidae Handlirsch, 1906 †
- Family Oedischiidae Handlirsch, 1906 †
- Family Oedischioidea incertae sedis †
- Family Ommexechidae
- Family Orthoptera (awaiting allocation)
- Family Palaeorehniidae Zeuner, 1937 †
- Family Pamphagidae
- Family Pamphagodidae
- Family Paragryllidae
- Family Paratitanidae †
- Family Pauliniidae
- Family Pentacentridae
- Family Phalangopsidae Blanchard, 1845
- Family Phaneropteridae Brunner von Wattenwyl, 1878 accepted as Tettigoniidae Krauss, 1902
- Family Phasmodidae
- Family Phasmomimidae Sharov, 1968 †
- Family Phyllophoridae Stål, 1874 accepted as Tettigoniidae Krauss, 1902
- Family Pneumoridae
- Family Podoscirtidae Saussure, 1878 accepted as Oecanthidae Blanchard, 1845
- Family Prezottophlebiidae Martins-Neto, 2007 †
- Family Promastacidae †
- Family Proparagryllacrididae †
- Family Prophalangopsidae Kirby, 1906
- Family Proscopiidae Serville, 1838
- Family Protogryllidae †
- Family Pruvostitidae †
- Family Pseudelcanidae †
- Family Pseudogryllotalpidae Gu et al., 2023 † accepted as Gryllidae Laicharting, 1781
- Family Pseudophyllidae
- Family Pteroplistidae
- Family Pyrgacrididae
- Family Pyrgomorphidae Brunner von Wattenwyl, 1874
- Family Rhaphidophoridae Walker, 1869
- Family Ripipterygidae Ander, 1939
- Family Romaleidae
- Family Rudiaeschnidae Bechly et al., 2001 †
- Family Schizodactylidae
- Family Scleropteridae
- Family Stenopelmatidae
- Family Tanaoceridae
- Family Tetrigidae Rambur, 1838
- Family Tettigoniidae Krauss, 1902
- Family Tettigoniidea incertae sedis
- Family Thericleidae
- Family Triassomanteidae †
- Family Tridactylidae Brullé, 1835
- Family Trigonidiidae Saussure, 1870
- Family Trigonopterygidae
- Family Tristiridae
- Family Tuphellidae †
- Family Tympanophoridae
- Family Vitimiidae †
- Family Xenopteridae †
- Family Xyronotidae
- 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 †
- 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 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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