Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade dorsates Cavalier-Smith, 2021
                   Clade podiates Cavalier-Smith, 2012
                     [crown] Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       [crown] Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                         [crown] Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
                           Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                             Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
                               Kingdom Animalia Linnaeus, 1758 - animals
                                 Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
                                   Subkingdom Bilateria Hatschek, 1888 - bilaterians
                                     Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
                                       Infrakingdom Protostomia Grobben, 1908
                                         Superphylum Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake, 1997
                                           Panarthropoda Nielsen, 1995 - panarthropods
                                             Tactopoda Budd, 2001
                                               Phylum Arthropoda Siebold, 1848 - arthropods
                                                 Euarthropoda
                                                   Antennulata
                                                     Subphylum Mandibulata Snodgrass, 1938
                                                       Infraphylum Pancrustacea Zrzavý & Štys, 1997
                                                         Altocrustacea
                                                           Vericrustacea
                                                             Multicrustacea
                                                               Communostraca
                                                                 Class Malacostraca Latreille, 1802
                                                                   Subclass Eumalacostraca Grobben, 1892
                                                                     Superorder Peracarida Calman, 1904
                                                                       Order Tanaidacea Dana, 1849 - tanaids
                                                                         Suborder Tanaidomorphaᵀ Sieg, 1980
                                                                           Superfamily Paratanaoidea Lang, 1949
                                                                             01 Genus Allodaposia Sieg, 1986 [monotypic]
                                                                             02 Genus Armaturatanais Larsen, 2005
                                                                             03 Genus Coalecerotanais Larsen, 2003 [monotypic]
                                                                             04 Genus Insociabilitanais Larsen, 2005 [monotypic]
                                                                             05 Genus Leptognathioides Bird & Holdich, 1985
                                                                             06 Genus Paraleptognathia Kudinova-Pasternak, in Kuznetsov & Mironov, eds., 1981
                                                                             07 Genus Pseudoarthrura Larsen, 2005 [monotypic]
                                                                             08 Genus Spinitanaopsis Larsen, 2005 [monotypic]
                                                                             09 Genus Tanabnormia Gutu, 1986 [monotypic]
                                                                             10 Genus Akanthophoreus Sieg, 1986
                                                                             11.01 Genus Andrognathia Sieg, 1983 [monotypic]
                                                                             11.02 Genus Androtanais Sieg, 1976 [monotypic]
                                                                             11.03 Genus Armatognathia Kudinova-Pasternak, 1987 [monotypic]
                                                                             11.04 Genus Bifidia Sieg & Zibrowius, 1988 [monotypic]
                                                                             11.05 Genus Chauliopleona Dojiri & Sieg, 1997
                                                                             11.06 Genus Dimorphognathia Sieg, 1986 [monotypic]
                                                                             11.07 Genus Exspina Lang, 1968 [monotypic]
                                                                             11.08 Genus Mimicarhaphura Sieg, 1986 [monotypic]
                                                                             11.09 Genus Monstrotanais Kudinova-Pasternak, in Kuznetsov & Mironov, eds., 1981
                                                                             11.10 Genus Parafilitanais Kudinova-Pasternak, 1989
                                                                             11.11 Genus Pseudomacrinella Kudinova-Pasternak, 1990 [monotypic]
                                                                             11.12 Genus Pseudoparatanais Lang, 1973
                                                                             11.13 Genus Robustochelia Kudinova-Pasternak, 1983
                                                                             11.14 Genus Robustognathia Kudinova-Pasternak, 1989 [monotypic]
                                                                             11.15 Genus Safaritanais Kudinova-Pasternak, 1987 [monotypic]
                                                                             11.16 Genus Salemia Lang, 1971 [monotypic]
                                                                             11.17 Genus Stenotanais Bird & Holdich, 1984
                                                                             11.18 Genus Tanaopsis G.O. Sars, 1896
                                                                             12.1 Genus Antiplotanais Bamber, 2008
                                                                             12.2 Genus Bathyleptochelia Larsen, 2003 [monotypic]
                                                                             12.3 Genus Grallatotanais Gutu & Iliffe, 2001 [monotypic]
                                                                             12.4 Genus Heterotanoides Sieg, 1977
                                                                             12.5 Genus Intermedichelia Gutu, 1996 [monotypic]
                                                                             12.6 Genus Mesotanais Dollfus, 1897
                                                                             12.7 Genus Metatanais Shiino, 1952
                                                                             12.8 Genus Tangalooma Bamber, 2008 [monotypic]
                                                                             13 Genus Paranarthrurella Lang, 1971
                                                                             14 Genus Singula Blazewicz-Paszkowycz, 2005 [monotypic]
                                                                             15.1.1 Family Agathotanaidae Lang, 1971
                                                                             15.1.2 Family Anarthruridae Lang, 1971
                                                                             15.2 Family Tanaellidae Larsen & Wilson, 2002
                                                                             15.3.1 Family Leptognathiidae Sieg, 1976 [monotypic]
                                                                             15.3.2.1 Family Colletteidae Larsen & Wilson, 2002
                                                                             15.3.2.2 Family Mirandotanaidae Blazewicz-Paszkowycz & Bamber, 2009
                                                                             16.1 Family Nototanaidae Sieg, 1976
                                                                             16.2 Family Tanaissuidae Bird & Larsen, 2009
                                                                             17 Family Leptocheliidae Lang, 1973
                                                                             18.1 Family Paratanaidaeᵀ Lang, 1949
                                                                             18.2 Family Teleotanaidae Bamber, 2008 [monotypic]
                                                                             19 Family Pseudozeuxidae Sieg, 1982
                                                                             20.1 Family Cryptocopidae (Sieg, 1977) Bird & Larsen, 2009
                                                                             20.2 Family Pseudotanaidae Sieg, 1976
                                                                             21 Family Typhlotanaidae Sieg, 1984