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 Arthropoda Siebold, 1848 - arthropods
           Subphylum Uniramia Snodgrass, 1935 see Phylum Arthropoda Siebold, 1848
             Class Insecta Linnaeus, 1758 - insects
               Subclass Pterygota Lang, 1888 - winged insects see Infraclass Pterygota Lang, 1888
                 Infraclass Neoptera Martynov, 1923 - modern, wing-folding insects see Division Neoptera Martynov, 1923
                   Superorder Hemipterodea see Subdivision Paraneoptera
                     Order Psocoptera Shipley, 1904 - book and bark lice
                       Suborder Trogiomorpha Roesler, 1940
                         Group Psocatropetae Pearman, 1936
                           Family Psyllipsocidae (Kolbe, 1884)
                             1 Genus Dorypteryx Aaron, 1884
                             2 Genus Psocatropos Ribaga, 1899 see Genus Psocathropos Ribaga, 1899
                             3 Genus Psyllipsocus Selys-Longchamps, 1872
                             4 Genus Speleketor Gurney, 1943