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 †Artiopoda Hou & Bergström, 1997
                                                       Superclass †Trilobitomorpha Størmer, 1944
                                                         Class †Trilobita Walch, 1771 - trilobites
                                                           Order †Phacopida Salter, 1864
                                                             Suborder †Phacopinaᵀ Struve, 1959
                                                               Superfamily †Acastoidea Delo, 1935
                                                                 Genus †Asteropyge Hawle & Corda, 1847
                                                                 Genus †Bainella Rennie, 1933
                                                                 Genus †Comura Richter, 1927
                                                                 Genus †Cryphaeoides Delo, 1935
                                                                 Genus †Dalmaniturus Chernysheva, 1937
                                                                 Genus †Gourdonia Pillet, 1954
                                                                 Genus †Greenops Delo, 1935
                                                                 Genus †Kayserops Delo, 1935
                                                                 Genus †Kloucekia Delo, 1935
                                                                 Genus †Metacanthina Pillet, 1954
                                                                 Genus †Pennaia Clarke, 1913
                                                                 Genus †Philonyx Richter & Richter, 1952
                                                                 Genus †Pseudocryphaeus Pillet, 1954
                                                                 Genus †Psychopyge Termier & Termier, 1950
                                                                 Genus †Rhenops Richter & Richter, 1943
                                                                 Genus †Schizostylus Delo, 1935
                                                                 Genus †Tibgaya
                                                                 Genus †Treveropyge Struve, 1958
                                                                 Genus †Walliserops Morzadec, 2001
                                                                 1 Family †Acastidaeᵀ Delo, 1935
                                                                 2 Family †Calmoniidae Delo, 1935