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 †Artiopoda Hou & Bergström, 1997
                                                       Superclass †Trilobitomorpha Størmer, 1944
                                                         Class †Trilobita Walch, 1771 - trilobites
                                                           Order †Phacopida Salter, 1864
                                                             Suborder †Cheirurina Harrington & Leanza, 1957
                                                               [Superfamily †Cheiruroideaᵀ] see Suborder Cheirurina Harrington & Leanza, 1957
                                                                 Genus †Acanthoparypha Whittington & Evitt, 1954
                                                                 Genus †Actinopeltis Hawle & Corda, 1847
                                                                 Genus †Atractocybeloides Krueger, 1991
                                                                 Genus †Atractopyge Hawle & Corda, 1847
                                                                 Genus †Ceraurinella Cooper, 1953
                                                                 Genus †Cybele Lovén, 1845
                                                                 Genus †Cybelella
                                                                 Genus †Cybeloides Slocum, 1913
                                                                 Genus †Cyrtometopella Nikolaisen, 1961
                                                                 Genus †Cyrtometopus Angelin, 1854
                                                                 Genus †Deacybele Whittington, 1965
                                                                 Genus †Eccoptile
                                                                 Genus †Erratencrinurus Krueger, 1971
                                                                 Genus †Hapsiceraurus Whittington, 1954
                                                                 Genus †Heliomera Raymond, 1905
                                                                 Genus †Hemisphaerocoryphe Reed, 1896
                                                                 Genus †Holia Bradley, 1930
                                                                 Genus †Kawina Barton, 1920
                                                                 Genus †Lehua Barton, 1920
                                                                 Genus †Nieszkowskia Schmidt, 1881
                                                                 Genus †Oedicybele Whittington, 1938
                                                                 Genus †Onycopyge Woodward, 1880
                                                                 Genus †Osekaspis Prantl & Pribyl, 1947
                                                                 Genus †Paraceraurus Männil, 1958
                                                                 Genus †Parapilekia Kobayashi, 1934
                                                                 Genus †Placoparia Hawle & Corda, 1847
                                                                 Genus †Pliomeroides Harrington & Leanza, 1957
                                                                 Genus †Pliomerops Raymond, 1905
                                                                 Genus †Pompeckia Warburg, 1925
                                                                 Genus †Pseudosphaerexochus Schmidt, 1881
                                                                 Genus †Remipyga Whittington, 1954
                                                                 Genus †Reraspis Öpik, 1937
                                                                 Genus †Sphaerexochus Beyrich, 1845
                                                                 Genus †Stubblefieldia Prantl & Pribyl, 1947
                                                                 Genus †Tesselacauda Ross, 1951
                                                                 Genus †Youngia Lindström, 1886
                                                                 3 [Family †Pilekiidae (Sdzuy, 1955)] see Family Cheiruridae Hawle & Corda, 1847
                                                                 5 [Family †Staurocephalidae Prantl & Pribyl, 1947] see Family Encrinuridae Angelin, 1854
                                                                 6 [Family †Hammatocnemidae] see Family Pliomeridae Raymond, 1913