Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Superphylum Articulata Cuvier see Supraphylum Articulata Cuvier
           Phylum Arthropoda Siebold, 1848 - arthropods
             Subphylum Chelicerata Heymons, 1901
               Class Pantopoda Gerstäcker, 1863 see Order Pantopoda Gerstäcker, 1863
                 Family Pycnogonidae Wilson, 1878
                   Genus Pycnogonum Brünnich, 1764