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 †Redlichiida Richter, 1932
                                                             Suborder †Olenellina Walcott, 1890 [paraphyletic]
                                                               Superfamily †Olenelloideaᵀ Walcott, 1890
                                                                 Genus †Biceratops Pack & Gayle, 1971
                                                                 Genus †Callavia Matthew, 1897
                                                                 Genus †Cambropallas Geyer, 1993
                                                                 Genus †Esmeraldina Resser & Howell, 1938
                                                                 Genus †Fremontella Harrington, 1956
                                                                 Genus †Gabriellus Fritz, 1992
                                                                 Genus †Holmiella Fritz, 1972
                                                                 Genus †Kjerulfia Kiaer, 1916
                                                                 Genus †Laudonia Harrington, 1956
                                                                 Genus †Mummaspis Fritz, 1992
                                                                 Genus †Paedeumias Walcott, 1910
                                                                 Genus †Peachella Walcott, 1910
                                                                 Genus †Schmidtiellus Moberg, 1906
                                                                 Genus †Wanneria Walcott, 1908
                                                                 1 Family †Olenellidaeᵀ Walcott, 1890
                                                                 2 Family †Holmiidae Hupé, 1953