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 Pentastomida (Diesing, 1836) see Subclass Pentastomida Diesing, 1836
             Class Pentastomata see Class Pentastomida (Diesing, 1836)
               Order Porocephalida Heymons, 1935
                 Superfamily Porocephaloidea Fain, 1961 see Family Porocephalidae Fain, 1961
                   Family Porocephalidae Fain, 1961
                     1 Genus Porocephalus
                     2 Genus Armillifer
                     3 Genus Kiricephalus
                     4 Genus Waddycephalus
                     5 Genus Ligamifer