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
- 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
- Family Agaonidae Walker, 1848
- Family Agriotypidae
- Family Alavarommatidae Ortega-Blanco, Peñalver, Declòs & Engel, 2011 †
- Family Allommationidae Rosa & Melo, 2021 †
- Family Ammoplanidae Evans, 1959
- Family Ampulicidae Shuckard, 1840
- Family Anaxyelidae Martynov, 1925
- Family Andrenidae Latreille, 1802
- Family Angarosphecidae Rasnitsyn, 1975 †
- Family Anomopterellidae †
- Family Anthophoridae accepted as Apidae Leach, 1815
- Family Aphelinidae
- Family Aphidiidae accepted as Braconidae Latreille, 1829
- Family Apidae Leach, 1815
- Family Apozygidae
- Family Aptenoperissidae Rasnitsyn & Poinar in Rasnitsyn, Poinar & Brown, 2017 †
- Family Archaeocynipidae †
- Family Archaeoserphitidae Engel, 2015 †
- Family Argidae Konow, 1890
- Family Armaniidae †
- Family Aulacidae Shuckard, 1842
- Family Austroniidae
- Family Baissidae Rasnitsyn, 1975 †
- Family Baissodidae †
- Family Bethylidae Haliday, 1839
- Family Bethylonymidae †
- Family Blasticotomidae Thomson, 1871
- Family Braconidae Latreille, 1829
- Family Bradynobaenidae
- Family Bryopompilidae Rodriguez, Waichert, von Dohlen, Poinar & Pitts, 2016 †
- Family Burmasphecidae Melo & Rosa, 2023 †
- Family Burmorussidae Zhang, Kopylov & Rasnitsyn in Zhang et al., 2020 †
- Family Burmusculidae Zhang & Rasnitsyn in Zhang et al., 2018 †
- Family Caradiophyodidae Poinar & Vega, 2023 †
- Family Cephidae Newman, 1834
- Family Ceraphronidae
- Family Chalcididae
- Family Charipidae
- Family Chrysidae accepted as Chrysididae Latreille, 1802
- Family Chrysididae Latreille, 1802
- Family Chrysobythidae Melo & Lucena, 2019 †
- Family Chrysopsenellidae Lepeco & Melo, 2023 †
- Family Chysididae accepted as Chrysididae Latreille, 1802
- Family Cimbicidae Kirby, 1837
- Family Cirrosphecidae Antropov, 2000 †
- Family Colletidae Lepeletier, 1841
- Genus Aageocolletes Engel, 2022
- Genus Actenosigynes Moure, Graf & Urban, 1999
- Genus Aenarete Engel & Gonzalez, 2022
- Genus Aglaocolletes Engel, 2022
- Genus Albinapis Urban & Graf, 2000
- Genus Alfkenylaeus Snelling, 1985
- Genus Alokocolletes Maynard, 2013 accepted as Leioproctus Smith, 1853
- Genus Amphylaeus Michener, 1965
- Genus Analastoroides Rayment, 1950
- Genus Andrenopsis Cockerell, 1905
- Genus Anoediscelis Toro & Moldenke, 1979
- Genus Anomalohesma Exley, 1977
- Genus Anthoglossa Smith, 1853
- Genus Apatosigynes Engel, 2021
- Genus Argohesma Exley, 1969
- Genus Asciocolletes Engel, 2022
- Genus Baptonedys Moure, Urban & Graf, 1999
- Genus Bicolletes Friese, 1908
- Genus Bicolletopsis Engel, 2022 accepted as Bicolletes Friese, 1908
- Genus Biglossidia Moure, 1948
- Genus Binghamiella Cockerell, 1907 accepted as Callomelitta Smith, 1853
- Genus Boreopsis Ikudome, 1991
- Genus Brachyglossa Friese, 1922 accepted as Brachyglossula Hedicke, 1922
- Genus Brachyglossula Hedicke, 1922
- Genus Brachyhesma Michener, 1965
- Genus Cactocolletes Engel, 2020
- Genus Cadeguala Reed, 1892
- Genus Cadegualina Michener, 1986
- Genus Callohesma Michener, 1965
- Genus Callomelitta Smith, 1853
- Genus Calloproctus Engel, 2022
- Genus Calloprosopis Snelling, 1985
- Genus Callorhiza Hirashima, 1989
- Genus Capitatiscopa Packer, 2008 accepted as Chilicola Spinola in Gay, 1851
- Genus Caupolicana Spinola in Gay, 1851
- Genus Caupolicania Schulz, 1906 accepted as Caupolicana Spinola in Gay, 1851
- Genus Caupolicanoides Michener, 1966 †
- Genus Cephalocolletes Michener, 1989
- Genus Ceratorhiza Hirashima, 1978
- Genus Cercorhiza Hirashima, 1982
- Genus Chaetohesma Exley, 1978
- Genus Charicolletes Maynard, 2013 accepted as Leioproctus Smith, 1853
- Genus Cheesmania Hirashima, 1981
- Genus Chilicola Spinola in Gay, 1851
- Genus Chilimelissa Toro & Moldenke, 1979
- Genus Chilioediscelis Toro & Moldenke, 1979
- Genus Chrysocolletes Michener, 1965
- Genus Chrysopasiphae Engel, 2022
- Genus Cladocerapis Cockerell, 1904
- Genus Cnemidorhiza Hirashima, 1981
- Genus Collectes Rafinesque, 1815 accepted as Colletes Latreille, 1802
- Genus Colletes Latreille, 1802
- Genus Conospermapis Engel, 2022
- Genus Cornylaeus Snelling, 1985
- Genus Crawfordapis Moure, 1964
- Genus Cyanopasiphae Engel, 2022 accepted as Bicolletes Friese, 1908
- Genus Cygnella Engel, 2022 accepted as Euryglossidia Cockerell, 1910
- Genus Cyranocolletes Engel, 2022
- Genus Damocrateia Engel, 2022 accepted as Euryglossidia Cockerell, 1910
- Genus Dasycolletes Smith, 1853
- Genus Dasyhesma Michener, 1965
- Genus Dermatohesma Michener, 1965 accepted as Dasyhesma Michener, 1965
- Genus Diphaglossa Spinola in Gay, 1851
- Genus Dolichohesma Engel, 2020
- Genus Donovanapis Engel in Engel & Gonzalez, 2022 accepted as Leioproctus Smith, 1853
- Genus Eremocolletes Engel, 2022
- Genus Erythropasiphae Engel, 2022 accepted as Bicolletes Friese, 1908
- Genus Euhesma Michener, 1965
- Genus Eulonchopria Brèthes, 1909
- Genus Euprosopis Perkins, 1912
- Genus Euryglossa Smith, 1853
- Genus Euryglossella Cockerell, 1910
- Genus Euryglossidia Cockerell, 1910
- Genus Euryglossimorpha Strand, 1910 accepted as Euryglossa Smith, 1853
- Genus Euryglossina Exley
- Genus Euryglossula Michener, 1965
- Genus Eusphecogastra Hirashima, 1992
- Genus Exleycolletes Maynard, 2013 accepted as Leioproctus Smith, 1853
- Genus Exleyhesma Engel, 2020
- Genus Filiglossa Rayment, 1959
- Genus Fragocolletes Maynard, 2013 accepted as Leioproctus Smith, 1853
- Genus Geodiscelis Michener & Rozen, 1999
- Genus Glossurocolletes Michener, 1965
- Genus Gnathoprosopis Perkins, 1912
- Genus Gnathylaeus Bridwell, 1919
- Genus Gongyloprosopis Snelling, 1982
- Genus Goniocolletes Cockerell, 1907
- Genus Gressittapis Hirashima, 1978
- Genus Hadrocolletes Maynard, 2013 accepted as Leioproctus Smith, 1853
- Genus Hadrorhiza Hirashima, 1980
- Genus Halictanthrena Ducke, 1907
- Genus Hemirhiza Michener, 1965
- Genus Henicohesma Exley, 1968
- Genus Hesperocolletes Michener, 1965
- Genus Heterapis Cockerell, 1911
- Genus Heterapoides Sandhouse, 1943
- Genus Heteroediscelis Toro & Moldenke, 1979
- Genus Heterohesma Michener, 1965
- Genus Hexaproctus Engel, 2022
- Genus Hilaeus Latreille, 1802 accepted as Hylaeus Fabricius, 1793
- Genus Hoplocolletes Michener, 1965
- Genus Houstoniella Engel, 2022 accepted as Eremocolletes Engel, 2022
- Genus Hylaeoides Dalla Torre, 1896 accepted as Hyleoides Smith, 1853
- Genus Hylaeoides Cockerell, 1929 accepted as Hyleoides Smith, 1853
- Genus Hylaeorhiza Michener, 1965
- Genus Hylaeus Fabricius, 1793
- Genus Hyleoides Smith, 1853
- Genus Hyleus Spinola, 1806 accepted as Hylaeus Fabricius, 1793
- Genus Hyphesma Michener, 1965
- Genus Indialaeus Dathe, 2011 accepted as Hylaeus Fabricius, 1793
- Genus Kanakapis Engel, 2022 accepted as Lamprocolletes Smith, 1853
- Genus Laccohylaeus Houston, 1981
- Genus Lamprocolletes Smith, 1853
- Genus Laxoprosopis Chen & Xu, 2010 accepted as Hylaeus Fabricius, 1793
- Genus Leioproctus Smith, 1853
- Genus Leucopasiphae Engel, 2022 accepted as Perditomorpha Ashmead, 1899
- Genus Lioproctus Smith, 1879 accepted as Leioproctus Smith, 1853
- Genus Lonchopria Vachal, 1905
- Genus Lonchoprisaria Wittmann & Hoffmann, 1990 accepted as Lonchopriscus Engel, 2020
- Genus Lonchopriscus Engel, 2020
- Genus Lonchorhyncha Michener, 1989
- Genus Lysicolletes Rayment, 1935
- Genus Machaerocolletes Engel, 2022
- Genus Madrosoma Ashmead, 1899 accepted as Mydrosoma Smith, 1879
- Genus Manocolletes Engel, 2022 accepted as Euryglossidia Cockerell, 1910
- Genus Maoricolletes Engel, 2022 accepted as Leioproctus Smith, 1853
- Genus Maynardapis Engel, 2022
- Genus Mehelya Popov, 1939 accepted as Mehelyana Sandhouse, 1943
- Genus Mehelyana Sandhouse, 1943 accepted as Hylaeus Fabricius, 1793
- Genus Melittosmithia Schulz, 1906
- Genus Meroglossa Smith, 1853
- Genus Meroglossula Perkins, 1912 accepted as Meroglossa Smith, 1853
- Genus Michenerapis Hirashima & Lieftinck, 1982
- Genus Microdontura Cockerell, 1929
- Genus Mimozibyne Engel, 2021
- Genus Minycolletes Maynard, 2013 accepted as Leioproctus Smith, 1853
- Genus Mourecotelles Toro & Cabezas, 1977
- Genus Mydrosoma Smith, 1879
- Genus Mydrosomella Michener, 1986
- Genus Nanopasiphae Engel, 2022
- Genus Nazcoediscelis Packer & Dumesh, 2014 accepted as Geodiscelis Michener & Rozen, 1999
- Genus Neopasiphae Perkins, 1912
- Genus Nesohylaeus Ikudome, 1989
- Genus Nesoprosopis Perkins, 1899
- Genus Niltonia Moure, 1964
- Genus Nodocolletes Rayment, 1931
- Genus Noonadania Hirashima, 1978
- Genus Noteopsis Ikudome, 1991
- Genus Nothylaeus Bridwell, 1919
- Genus Notinopasiphae Engel, 2022 accepted as Euryglossidia Cockerell, 1910
- Genus Notocolletes Cockerell, 1916
- Genus Obesicola Packer, 2008 accepted as Chilicola Spinola in Gay, 1851
- Genus Odontocolletes Maynard, 1997
- Genus Oediscelisca Moure, 1946
- Genus Oroediscelis Michener, 2002
- Genus Orohylaeus Michener, 2000
- Genus Otagocolletes Engel & Kaulfuss, 2025 † accepted as Leioproctus Smith, 1853
- Genus Ottocolletes Houston & Maynard, 2012 accepted as Leioproctus Smith, 1853
- Genus Pachyodonta Rayment, 1954 accepted as Callomelitta Smith, 1853
- Genus Pachyprosopis Perkins, 1908
- Genus Packercolletes Engel, 2022
- Genus Palaeorhiza Perkins, 1908
- Genus Papuanorhiza Hirashima, 1996
- Genus Paracolletes Smith, 1853
- Genus Paraheterorhiza Hiroshima, 1980
- Genus Parapachyprosopis Exley, 1972 †
- Genus Patagoniapis Engel in Engel & Gonzalez, 2022
- Genus Patagonicola Packer, 2014
- Genus Perditomorpha Ashmead, 1899
- Genus Pharohylaeus Michener, 1965
- Genus Phenacolletes Cockerell, 1905
- Genus Planihylaeus Houston, 1981
- Genus Prosapis Ashmead, 1894
- Genus Prosopella Snelling, 1966 †
- Genus Prosopis Fabricius, 1805
- Genus Prosopisteron Cockerell, 1906
- Genus Protomorpha Rayment, 1959
- Genus Psilylaeus Snelling, 1985
- Genus Ptiloglossa Smith, 1853
- Genus Ptiloglossidia Moure, 1953
- Genus Ptiloglossium Engel, 2020
- Genus Pumilaeus Dathe, 2015 accepted as Hylaeus Fabricius, 1793
- Genus Quasihesma Exley, 1968
- Genus Reedapis Michener, 1989
- Genus Rhamphocolletes Engel, 2022
- Genus Ruzopria Engel, 2022 accepted as Belopria Moure, 1956
- Genus Sarocolletes Michener, 1989
- Genus Sarocolletidion Engel, 2022
- Genus Scrapter Lepeletier & Serville, 1828
- Genus Sericogaster Westwood, 1835
- Genus Smithia Vachal, 1897 accepted as Melittosmithia Schulz, 1906
- Genus Snellingella Griswold, 2009 accepted as Hylaeus Fabricius, 1793
- Genus Sphaerhylaeus Cockerell, 1929
- Genus Sphecogaster Hirashima, 1978 accepted as Eusphecogastra Hirashima, 1992
- Genus Stenoediscelis Toro & Moldenke, 1979
- Genus Stenohesma Michener, 1965
- Genus Sthenele Engel, 2022
- Genus Stichohesma Engel, 2020
- Genus Stilbopasiphae Engel, 2022
- Genus Stilpnosoma Smith, 1879
- Species Stilpnosoma adelaidae Friese, 1924 accepted as Melittosmithia adelaidae (Friese, 1924)
- Species Stilpnosoma cambournii Rayment, 1935 accepted as Sericogaster fasciata Westwood, 1835
- Species Stilpnosoma clypeata Rayment, 1954 accepted as Heterohesma clypeata (Rayment, 1954)
- Species Stilpnosoma histrio Friese, 1924 accepted as Sericogaster fasciata Westwood, 1835
- Species Stilpnosoma laevigatum Smith, 1879
- Species Stilpnosoma laterale Friese, 1924 accepted as Euryglossa adelaidae Cockerell, 1905
- Species Stilpnosoma nigrum Friese, 1924 accepted as Euhesma fasciatella (Cockerell, 1907)
- Species Stilpnosoma piceum Friese, 1924 accepted as Euryglossa adelaidae Cockerell, 1905
- Species Stilpnosoma semisericea Cockerell, 1905 accepted as Sericogaster fasciata Westwood, 1835
- Species Stilpnosoma thoracicum Friese, 1924 accepted as Euryglossa subsericea Cockerell, 1905
- Species Stilpnosoma turneri Baker, 1906 accepted as Euryglossa subsericea Cockerell, 1905
- Species Stilpnosoma turneri Friese, 1917 accepted as Euryglossa laevigatum (Smith, 1879)
- Species Stilpnosoma turneri Friese, 1924 accepted as Euryglossa subsericea Cockerell, 1905
- Species Stilpnosoma variegatum Friese, 1924 accepted as Euryglossa adelaidae Cockerell, 1905
- Species Stilpnosoma ventrale Friese, 1924 accepted as Euryglossa subsericea Cockerell, 1905
- Genus Stoclele Engel, 2022 accepted as Lamprocolletes Smith, 1853
- Genus Tetraglossula Ogloblin, 1948
- Genus Thaumoediscelis Packer & Dumesh, 2014 accepted as Geodiscelis Michener & Rozen, 1999
- Genus Toroediscelis Packer, 2008 accepted as Chilicola Spinola in Gay, 1851
- Genus Trachyrhiza Hirashima, 1980
- Genus Trichocolletes Cockerell, 1912
- Genus Tumidihesma Exley, 1996
- Genus Turnerella Cockerell, 1910
- Genus Unicarinicola Packer, 2008 accepted as Chilicola Spinola in Gay, 1851
- Genus Walkerapis Engel, 2022
- Genus Willinkapis Moure, 1953
- Genus Xanthesma Michener, 1965
- Genus Xanthocotelles Toro & Cabezas, 1979
- Genus Xenochilicola Toro & Moldenke, 1979
- Genus Xenorhiza Michener, 1965
- Genus Xeromelissa Cockerell, 1926
- Genus Zalygus Cockerell, 1929
- Genus Zarhiopalea Hirasima, 1982
- Genus Zikanapis Moure, 1945
- Genus Zosterocolletes Maynard, 2013 accepted as Leioproctus Smith, 1853
- Genus Zyzzocolletes Engel, 2022
- Family Crabronidae Latreille, 1802
- Family Cretacoformicidae Rasnitsyn & Öhm-Kühnle, 2019 †
- Family Cretevaniidae †
- Family Cynipidae Latreille, 1802
- Family Daohugoidae Rasnitsyn & Zhang, 2004 † accepted as Xyelidae Newman, 1834
- Family Diapriidae Haliday, 1833
- Family Diprionidae Rohwer, 1910
- Family Dipterommatidae Rasnitsyn, Sidorchuk, Zhang & Zhang, 2019 †
- Family Discoscapidae Poinar, 2020 † accepted as Crabronidae Latreille, 1802
- Family Diversinitidae Haas, Burks & Krogmann, 2018 †
- Family Dryinidae Haliday, 1833
- Family Elasmidae
- Family Electrotomidae †
- Family Embolemidae
- Family Encyrtidae Walker, 1837
- Family Eoichneumonidae †
- Family Ephialtitidae †
- Family Eucharidae accepted as Eucharitidae
- Family Eucharitidae
- Family Eucoilidae
- Family Eulophidae Westwood, 1829
- Family Eumenidae Leach, 1815 accepted as Vespidae Leach, 1815
- Family Eupelmidae
- Family Eurytomidae
- Family Evaniidae Latreille, 1802
- Family Falsiformicidae Rasnitsyn, 1975 †
- Family Figitidae
- Family Formicidae Latreille, 1802
- Family Gallorommatidae Gibson, Read & Huber, 2007 †
- Family Gasteruptiidae
- Family Gerocynipidae Liu & Engel in Liu, Engel & Grimaldi, 2007 †
- Family Gigasiricidae Rasnitsyn, 1968 † accepted as Siricidae Billberg, 1820
- Family Halictidae Thomson, 1869
- Family Heloridae Förster, 1856
- Family Heterogynaidae Nagy, 1969
- Family Hymenoptera (awaiting allocation)
- Family Ibaliidae
- Family Ichneumonidae Latreille, 1802
- Family Ichneumonomimidae †
- Family Iscopinidae
- Family Ismaridae Thomson, 1858
- Family Jurapriidae †
- Family Karatavitidae Rasnitsyn, 1963 †
- Family Kislevidae Argaman, 2002 †
- Family Kuafuidae Rasnitsyn & Zhang, 2010 †
- Family Larridae
- Family Leptoomidae Gibson & Fusu, 2023 †
- Family Leucospidae
- Family Liopteridae
- Family Loboscelidiidae accepted as Chrysididae Latreille, 1802
- Family Maamingidae
- Family Maimetshidae Rasnitsyn, 1975 †
- Family Masaridae accepted as Vespidae Leach, 1815
- Family Megachilidae Schenk, 1860
- Family Megalodontesidae Konow, 1897
- Family Megalodontidae Konow, 1897 accepted as Megalodontesidae Konow, 1897
- Family Megalyridae Schletterer, 1889
- Family Megaspilidae
- Family Megastigmidae Thomson, 1876
- Family Melittidae Schenk, 1860
- Family Mesoserphidae Kozlov, 1970 †
- Family Mirolydidae Wang, Rasnitsyn & Ren in Wang et al., 2017 †
- Family Monomachidae
- Family Mutillidae Latreille, 1802
- Family Myanmarinidae Zhang & Rasnitsyn in Zhang et al., 2018 †
- Family Mymaridae Haliday, 1833
- Family Mymarommatidae
- Family Myrmiciidae Maa, 1949 † accepted as Pseudosiricidae Handlirsch, 1906 †
- Family Nyssonidae
- Family Ohlhoffiidae Jouault, Rasnitsyn & Perrichot, 2020 †
- Family Ormyridae
- Family Orussidae Newman, 1834
- Family Orussoidea incertae sedis †
- Family Othniodellithidae Engel & Huang in Engel et al., 2016 †
- Family Oxaeidae
- Family Pamphiliidae Cameron, 1890
- Family Panguidae Li, Rasnitsyn, Shih & Ren, 2019 †
- Family Parapamphiliidae Rasnitsyn, 1968 † accepted as Sepulcidae Rasnitsyn, 1968 †
- Family Pararchexyelidae Rasnitsyn, 1968 †
- Family Paroryssidae Martynov, 1925 †
- Family Pelecinidae Haliday, 1840
- Family Pelecinopteridae †
- Family Peleserphidae Zhang, Rasnitsyn, Wang & Zhang, 2018 †
- Family Pemphredonidae Dahlbom, 1835
- Family Peradeniidae
- Family Pergidae Rohwer, 1911
- Family Perilampidae Latreille, 1809
- Family Platygasteridae accepted as Platygastridae Haliday, 1833
- Family Platygastridae Haliday, 1833
- Family Plumalexiidae Brothers, 2011 †
- Family Plumariidae
- Family Pompilidae Latreille, 1804
- Family Praeaulacidae Rasnitsyn, 1972 †
- Family Praeichneumonidae †
- Family Praesiricidae Rasnitsyn, 1968 † accepted as Megalodontesidae Konow, 1897
- Family Proctotrupidae
- Family Proctotrupomorpha incertae sedis †
- Family Protimaspidae Liu & Engel, 2007 †
- Family Protoitidae Ulmer & Krogmann, 2023 †
- Family Protosiricidae Rasnitsyn & Zhang, 2004 †
- Family Pseudosiricidae Handlirsch, 1906 †
- Family Pteromalidae Dalman, 1820
- Family Radiophronidae Ortega-Blanco, Rasnitsyn & Delclòs, 2010 †
- Family Rasnitsyniidae
- Family Rhopalosomatidae Ashmead, 1896
- Family Roproniidae
- Family Rotoitidae Bouček & Noyes, 1987
- Family Sapygidae
- Family Scelionidae Thomson, 1858
- Family Sclerogibbidae Ashmead, 1902
- Family Scolebythidae
- Family Scoliidae Leach, 1815
- Family Sepulcidae Rasnitsyn, 1968 †
- Family Serphidae
- Family Serphitidae Brues, 1937 †
- Family Sierolomorphidae Brues & Melander, 1932
- Family Signiphoridae
- Family Sinosiricidae Hong, 1975 †
- Family Siricidae Billberg, 1820
- Family Spathiopterygidae Engel & Ortega-Blanco, 2013 †
- Family Sphecidae Latreille, 1802
- Family Spheciellidae Rosa & Melo, 2021 †
- Family Sphecomyrmidae †
- Family Sphegidae
- Family Stenotritidae Cockerell, 1934
- Family Stephanidae Leach, 1815
- Family Stigmaphronidae †
- Family Syntexidae Benson, 1935 accepted as Anaxyelidae Martynov, 1925
- Family Syspastoxyelidae Engel & Huang in Engel et al., 2016 †
- Family Tanaostigmatidae
- Family Temnogynidae Rosa & Melo, 2024 †
- Family Tenthredinidae Latreille, 1804
- Family Tenthredinoidea incertae sedis
- Family Tenthrenidae accepted as Tenthredinidae Latreille, 1804
- Family Tetracampidae Förster, 1856
- Family Thynnidae
- Family Thysanidae Peck, 1951 accepted as Signiphoridae
- Family Tiphiidae Leach, 1815
- Family Torymidae Walker, 1833
- Family Trichogrammatidae Haliday, 1851
- Family Trifionychidae Lepeco & Melo, 2022 †
- Family Trigonalidae accepted as Trigonalyidae
- Family Trigonalyidae
- Family Vanhorniidae
- Family Vespidae Leach, 1815
- Family Xiphydriidae Leach, 1815
- Family Xyelidae Newman, 1834
- Family Xyelididae † accepted as Xyelydidae Rasnitsyn, 1968 †
- Family Xyelotomidae Rasnitsyn, 1968 † accepted as Blasticotomidae Thomson, 1871
- Family Xyelydidae Rasnitsyn, 1968 †
- Family Xylocopidae
- Family Zenargidae Rohwer, 1918
- Genus Aspidopleura Gibson, 2009 †
- Genus Camelosphecia Boudinot, Perrichot & Chaul, 2020 †
- Genus Cratoenigma Krogmann & Nel, 2012 †
- Genus Minutoma Kaddumi, 2005 †
- Genus Sinanxyela Hong, 1982 †
- Genus Thagyaminobythus Rosse-Guillevic, Jouault & Brazidec, 2023
- 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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