Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
Count: -
   Opisthokonta Cavalier-Smith, 1987 - opisthokonts see Clade Opisthokonta Cavalier-Smith 1987, nom. cl. inval.
  Count: -
     Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
    Count: -
       Eumetazoa Bütschli, 1910 - eumetazoans
      Count: -
         Triploblastica see [unranked] Bilateria Hatschek, 1888
        Count: -
           Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
          Count: -
             Protostomia Grobben, 1908 see Infrakingdom Protostomia Grobben, 1908
            Count: -
               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;17c;2o;9g;7s
                 Hemocoelia
                Count: [p] 9p;17c;2o;9g;7s
                   Superphylum Panarthropoda Nielsen, 1995 see [unranked] Panarthropoda Nielsen, 1995
                  Count: [p] 3p;17c;2o;9g;7s
                     Phylum Tardigrada Doyère, 1840 - tardigrades
                    Count: 3c;9g;7s
                       Class Heterotardigrada Marcus, 1927 - armored tardigrades
                      Count: 5g;4s
                         Genus Megastygarctides McKirdy et al., 1976
                        Count: 1s
                           1 Megastygarctides orbiculatus McKirdy et al., 1976
                          Count: -