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 Tardigrada Doyère, 1840 - tardigrades
           Order Heterotardigrada Marcus, 1927 see Class Heterotardigrada Marcus, 1927
             Suborder Echiniscoidea Richters, 1926 see Order Echiniscoidea Richters, 1926
               Family Echiniscidae Thulin, 1928
                 Genus Echiniscus C.A.S. Schultze, 1840
                   Echiniscus molluscorum Fox and Garcia-Moll, 1962