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 Archaeopulmonata Morton, 1955 see Suborder Archaepulmonata
                 Superfamily Ellobiacea see Superfamily Ellobioidea Pfeiffer, 1854 (1822)
                   1 Family Ellobiidae Pfeiffer, 1854 (1822)
                   2 Family Otinidae Adams & Adams, 1855