Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         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
                     Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                         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
                                                                             Family Pseudotanaidae Sieg, 1976
                                                                               Genus Pseudotanaisᵀ G.O. Sars, 1882
                                                                                 Subgenus Pseudotanais (Pseudotanais)ᵀ G.O. Sars, 1882
                                                                                   Pseudotanais (Pseudotanais) abyssi Hansen, 1913
                                                                                   Pseudotanais (Pseudotanais) baresnauti Bird, 1999
                                                                                   Pseudotanais (Pseudotanais) borceai (Bacescu, 1960)
                                                                                   Pseudotanais (Pseudotanais) californiensis Dojiri & Sieg, 1997
                                                                                   Pseudotanais (Pseudotanais) colonus Bird & Holdich, 1989
                                                                                   Pseudotanais (Pseudotanais) corollatus Bird & Holdich, 1989
                                                                                   Pseudotanais (Pseudotanais) denticulatus Bird & Holdich, 1989
                                                                                   Pseudotanais (Pseudotanais) falcicula Bird & Holdich, 1989
                                                                                   Pseudotanais (Pseudotanais) forcipatus (Lilljeborg, 1864)
                                                                                   "Pseudotanais (Pseudotanais) forcipatus" sensu Vanhöffen, 1907
                                                                                   Pseudotanais (Pseudotanais) inflatus Kudinova-Pasternak, 1973
                                                                                   Pseudotanais (Pseudotanais) jonesi Sieg, 1977
                                                                                   Pseudotanais (Pseudotanais) lilljeborgi G.O. Sars, 1882
                                                                                   Pseudotanais (Pseudotanais) longisetosus Sieg, 1977
                                                                                   Pseudotanais (Pseudotanais) longispinus Bird & Holdich, 1989
                                                                                   Pseudotanais (Pseudotanais) macrocheles G.O. Sars, 1882
                                                                                   Pseudotanais (Pseudotanais) mediterraneus G.O. Sars, 1882
                                                                                   Pseudotanais (Pseudotanais) mexikolpos Sieg & Heard, 1988
                                                                                   Pseudotanais (Pseudotanais) nipponicus McLelland, 2007
                                                                                   Pseudotanais (Pseudotanais) nordenskioldi Sieg, 1977
                                                                                   Pseudotanais (Pseudotanais) oculatus Hansen, 1913
                                                                                   Pseudotanais (Pseudotanais) scalpellum Bird & Holdich, 1989
                                                                                   Pseudotanais (Pseudotanais) spatula Bird & Holdich, 1989
                                                                                   Pseudotanais (Pseudotanais) spicatus Bird & Holdich, 1989
                                                                                   Pseudotanais (Pseudotanais) stiletto Bamber, 2009
                                                                                   Pseudotanais (Pseudotanais) unicus Sieg, 1977
                                                                                   Pseudotanais (Pseudotanais) vitjazi Kudinova-Pasternak, 1966
                                                                                   Pseudotanais (Pseudotanais) vulsella Bird & Holdich, 1989
                                                                                   Pseudotanais (Pseudotanais) affinis Hansen, 1887