living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Mollusca Linnaeus, 1758 - molluscs
           Class Solenogastres Gegenbaur, 1878
             Order Pholidoskepia Salvini-Plawen, 1978
               Family Dondersiidae Simroth, 1893
                 1 Genus Dondersia Hubrecht, 1888
                 2 Genus Stylomenia Pruvot, 1899
                 3 Genus Micromenia Leloup, 1948
                 4 Genus Lyratoherpia Salvini-Plawen, 1978
                 5 Genus Nematomenia Simroth, 1893
                 6 Genus Heathia Thiele, 1913
                 7 Genus Ichthyomenia Pilsbry, 1898