Opisthokonta Cavalier-Smith 1987, nom. cl. inval. see Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020]
Count: 30p;8f;2g
   Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
  Count: [p] 30p;8f;2g
     Epitheliozoa Ax, 1996
    Count: [p] 29p;8f;2g
       Eumetazoa Bütschli, 1910 - eumetazoans
      Count: [p] 28p;8f;2g
         Acrosomata Ax, 1996 see [unranked] Eumetazoa Bütschli, 1910
        Count: [p] 27p;8f;1g
           Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
          Count: [p] 26p;8f;1g
             Protostomia Grobben, 1908 see Infrakingdom Protostomia Grobben, 1908
            Count: [p] 23p;5f;1g
               Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake 1997, nom. cl. inval. - ecdysozoans see Clade Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake 1997 [Lake, Halanych, Servin & Garey 2020]
              Count: [p] 10p
                 Cycloneuralia Nielsen, 1995 see [unranked] Introverta Nielsen, 1995
                Count: [p] 5p
                   Scalidophora Lemburg, 1995
                  Count: [p] 3p
                     Priapulida Delage & Hérouard, 1897 - priapulids
                    Count: -