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 Deuterostomia Grobben, 1908
                                         Phylum Chordata Bateson, 1885 - chordates
                                           [Subphylum Vertebrata Cuvier, 1812 - vertebrates] see Infraphylum Vertebrata Lamarck, 1801
                                             [Class Agnatha Cope, 1889 [paraphyletic]]
                                               [Subclass †unnamed [paraphyletic]] see Class Cephalaspidomorphi Kiaer & Stensiö, 1920
                                                 [Order †Galeaspida Liu, 1965] see Order Galeaspidiformes
                                                   01 [Family †"Hanyangaspidae" Pan & Liu, 1975] see Family Hanyangaspididae Pan & Liu, 1975, nom. praeval.
                                                   02 [Family †Galeaspidae Liu, 1965, nom. illeg.]
                                                   03 [Family †"Eugaleaspidae" Liu, 1980] see Family Eugaleaspididae Liu, 1980, nom. praeval.
                                                   04 [Family †"Nanpanaspidae" Liu, 1975] see Family Nanpanaspididae Liu, 1975, nom. praeval.
                                                   05 [Family †"Polybranchiaspidae" Liu, 1965] see Family Polybranchiaspididae Liu, 1965, nom. praeval.
                                                   06 [Family †"Hunanaspidae"] see Family Huananaspididae Liu, 1973, nom. praeval.
                                                   07 [Family †Duyunolepidae] see Family Polybranchiaspididae Liu, 1965, nom. praeval.
                                                   08 [Family †Lungmenshanaspidae] see Family Huananaspididae Liu, 1973, nom. praeval.
                                                   09 [Family †Tridensaspidae Liu, 1986] see Family Eugaleaspididae Liu, 1980, nom. praeval.
                                                   10 [Family †"Dayongaspidae" Pan, 1985] see Family Dayongaspididae Pan & Zeng, 1985, nom. praeval.