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 Gastropoda Cuvier, 1795 - snails and slugs
             Subclass Pulmonata Cuvier, 1814 - land snails and slugs see Order Pulmonata Cuvier, 1814
               ?Order Systellommatophora Pilsbry, 1948 see Suborder Systellommatophora Pilsbry, 1948
                 Superfamily Veronicellacea J.E. Gray, 1840 see Superfamily Veronicelloidea Gray, 1840
                   1 Family Veronicellidae Gray, 1840
                   2 Family Rathouisiidae Heude, 1885