Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
3 The last expanded taxon is highlighted
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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
- Order Entomobryomorpha
- Order Neelipleona
- Order Poduromorpha
- Family Brachystomellidae
- Family Gulgastruridae
- Family Hypogastruridae
- Family Isotogastruridae
- Family Neanuridae Börner, 1901
- Family Odontellidae
- Family Onichiuridae accepted as Onychiuridae
- Family Onychiuridae
- Genus Absolonia Börner, 1901
- Genus Agraphorura Pomorski, 1998
- Genus Allaphorura Bagnall, 1949
- Genus Anodontophora Pomorski, 2007
- Genus Anodontophorus Pomorski, 2007
- Genus Aphorura Macgillivray, 1893
- Genus Archaphorura Bagnall, 1949
- Genus Argonychiurus Bagnall, 1949
- Genus Augenius Gistl, 1848
- Genus Bionychiurus Pomorski, 1996
- Genus Chaetophorura Rusek, 1976
- Genus Clavaphorura Salmon, 1943
- Genus Cribrochiurus Weiner, 1996
- Genus Deharvengiurus Weiner, 1996
- Genus Detriturus Pomorski, 1998
- Genus Deuteraphorura Absolon, 1901
- Genus Dimorphaphorura Bagnall, 1949
- Genus Dinochiurus Pomorski & Steinmann, 2004
- Genus Dungeraphorura Gulgenova & Potapov, 2012
- Genus Granuliphorura Rusek, 1976
- Genus Heteraphorura Bagnall, 1948
- Genus Heteronychiurus Bagnall, 1949
- Genus Hymenaphorura Bagnall, 1948
- Genus Jacekaphorura Pomorski & Babenko, 2010
- Genus Kalaphorura Absolon, 1901
- Genus Kennethia Smolis & Skarżyński, 2013 accepted as Tetrakennethia Ceccolini & Cianferoni, 2021
- Genus Leeonychiurus Sun & Arbea, 2014
- Genus Lophognathella Börner, 1908
- Genus Megaphorura Fjellberg, 1998
- Genus Mesaphorura Börner, 1901
- Genus Micraphorura Bagnall, 1949
- Genus Micronychiurus Bagnall, 1949
- Genus Multivesicula Rusek, 1982
- Genus Oligaphorura Bagnall, 1949
- Genus Ongulonychiurus Thibaud & Massoud, 1986
- Genus Onychiuroides Bagnall, 1948
- Genus Onychiurus Gervais, 1841
- Genus Orthonychiurus Stach, 1954
- Genus Paronychiurus Bagnall, 1948
- Genus Pilonychiurus Pomorski, 2007
- Genus Prabhergia Salmon, 1965
- Genus Protaphorura Absolon, 1901
- Genus Protullbergia Bagnall, 1948 accepted as Tullbergia Lubbock, 1876
- Genus Psyllaphorura Bagnall, 1948
- Genus Reducturus Pomorski & Steinmann, 2004
- Genus Sacaphorura Pomorski & Steinmann, 2004
- Genus Sensillonychiurus Pomorski & Sveenkova, 2006
- Genus Sensiphorura Rusek, 1976
- Genus Similonychiurus Pomorski, 2007
- Genus Supraphorura Stach, 1954
- Genus Symphelos auct.
- Genus Tantulonychiurus Pomorski, 1996
- Genus Tetrakennethia Ceccolini & Cianferoni, 2021
- Genus Tetrodontophora Reuter, 1882
- Genus Thalassaphorura
- Genus Tullbergia Lubbock, 1876
- Genus Vexaphorura Pomorski & Steinmann, 2004
- Genus Vibronychiurus Pomorski, 1998
- Genus Wandaphorura Pomorski, 2007
- Genus Yoshiiphorura Jordana & Martinez, 2004
- Family Pachytullbergiidae
- Family Paleotullbergiidae
- Family Poduridae
- Family Tullbergiidae
- Order Symphypleona
- Family Collembola (awaiting allocation)
- Class Diplura
- Class Entognatha accepted as Hexapoda
- Class Insecta
- 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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