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 Cavibelonia Salvini-Plawen, 1978
               Family Amphimeniidae Salvini-Plawen, 1972
                 01 Genus Amphimenia Thiele, 1894
                 02 Genus Proparamenia Nierstrasz, 1902
                 03 Genus Pachymenia Heath, 1911
                 04 Genus Paragymnomenia Leloup, 1947
                 05 Genus Plathymenia Schwabl, 1961
                 06 Genus Ultralvoherpia see Genus Utralvoherpia Salvini-Plawen, 1978
                 07 Genus Meromenia Leloup, 1949
                 08 Genus Alexandromenia Heath, 1911
                 09 Genus Spengelomenia Heath, 1912
                 10 Genus Sputomenia see Genus Sputoherpia Salvini-Plawen, 1978