Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           "neomura" Cavalier-Smith 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               neokaryotes Cavalier-Smith 1993 - mitochondrial eukaryotes
                 neozoa Cavalier-Smith 1993
                   scotokaryotes Cavalier-Smith 2000
                     podiates Cavalier-Smith 2012 [nom. cl. nov.]
                       Amorphea Adl et al. 2012 [nom. cl. nov.]
                         Opisthokonta Cavalier-Smith 1987
                           Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                             filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith 2008
                               Kingdom Animalia Linnaeus, 1758 - animals
                                 Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004 [nom. cl. nov.]
                                   Subkingdom Bilateria Hatschek, 1888 - bilaterians
                                     Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002 [nom. cl. nov.]
                                       Infrakingdom Deuterostomia Grobben, 1908
                                         "Ambulacraria" Metschnikoff 1881 [Halanych 1995], nom. cl. inval.
                                           Phylum Echinodermata Bruguière, 1789 - echinoderms
                                             Subphylum Eleutherozoa Bell, 1891
                                               Infraphylum Echinozoa Haeckel, in Von Zittell, 1895
                                                 Class Echinoidea - sea urchins and sand dollars
                                                   Order †Disasteroida
                                                   Genus †Myriastiches Sollas, 1899
                                                   Order †Oligopygoida
                                                   Order †Orthopsida
                                                   Order †Plesiocidaroida
                                                   Order †Pygasteroida
                                                   Genus Salmacis Agassiz, 1841
                                                   1 Order †Bothriocidaroida
                                                   2 Order †Echinocystitoida
                                                   3 Order †Palaechinoida
                                                   4 Subclass Perischoechinoidea
                                                   5 Subclass Euechinoidea Bronn, 1860