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]
           neomura Cavalier-Smith, 1987
             Eukaryota Chatton, 1925 - eukaryotes
               discaria Cavalier-Smith, 2021
                 dorsates Cavalier-Smith, 2021
                   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
                           Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                             filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
                               Animalia Linnaeus, 1758 - animals
                                 [node-based clade] Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
                                   [branch-based clade] Bilateria Hatschek, 1888 - bilaterians
                                     Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
                                       [branch-based clade] Protostomia Grobben, 1908
                                         [branch-based clade] Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake, 1997
                                           Panarthropoda Nielsen, 1995 - panarthropods
                                             Tactopoda Budd, 2001
                                               Arthropoda Siebold, 1848 - arthropods
                                                 Euarthropoda
                                                   Antennulata
                                                     Mandibulata Snodgrass, 1938
                                                       Pancrustacea Zrzavý & Štys, 1997
                                                         Oligostraca
                                                           Ichthyostraca Zrzavý et al., 1997
                                                             Branchiura Thorell, 1864 - fish lice
                                                               †Cyclida Schram, Vonk & Hof, 1997, nom. corr.
                                                                 †Cyclidae Packard, 1885
                                                                   †Paraprosopon Gemmellaro, 1890
                                                                     1 †Paraprosopon reussi Gemmellaro, 1890