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 Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
             Subclass Cirripedia Lamarck - barnacles and their kin see Infraclass Cirripedia Burmeister, 1834
               Order Rhizocephala Müller, 1862 see Superorder Rhizocephala Müller, 1862
                 Suborder Kentrogonida Delage, 1884 see Order Kentrogonida Delage, 1884
                   Family Peltogastridae Lilljeborg, 1860
                     01 Genus Peltogasterᵀ Rathke, 1843
                     02 Genus Septosaccus Duboscq, 1912
                     03 Genus Briarosaccus Boschma, 1930
                     04 Genus Galatheascus Boschma, 1929
                     05 Genus Pterogaster Baal, 1937
                     06 Genus Dipterosaccus
                     07 Genus Temnascus Boschma, 1951
                     08 Genus Tortugaster
                     09 Genus Trachelosaccus Boschma, 1928
                     10 Genus Cyphosaccus Reinhard, 1958
                     11 Genus Peltogasterella Krueger, 1912 see Genus Peltogastrella Krueger, 1912
                     12 Genus Angulosaccus Reinhard, 1944
                     13 Genus Boschmaia Reinhard, 1958