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 Opisthobranchia Milne-Edwards, 1848 - opisthobranchs see Order Opisthobranchia Milne-Edwards, 1848
               Order Nudibranchia Cuvier, 1814 - "true" nudibranchs
                 Suborder Aeolidoidea see Suborder Aeolidina Odhner, 1934
                   Superfamily Cleioprocta Odhner, 1939 see Superfamily Aeolidioidea Gray, 1827
                     Family Glaucidae Gray, 1827, nom. protect.
                       1 Subfamily Babakininae Roller, 1973
                       2 Subfamily Facelininae Bergh, 1889
                       3 Subfamily Favorininae Bergh, 1889
                       4 Subfamily Pteraeolidiinae Risbec, 1953
                       5 Subfamily Glaucinae Gray, 1827 see Family Glaucidae Gray, 1827, nom. protect.
                       6 Subfamily Crateninae Bergh, 1889
                       7 Subfamily Herviellinae Burn, 1967