Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Chelicerata Heymons, 1901
       Class Pycnogonida Latreille, 1810 - pycnogonids
         Order Pantopoda Gerstäcker, 1863
           Suborder Eupantopodida Fry, 1978
             Superfamily Phoxichilidoidea Sars, 1891
               1 Family Phoxichilidiidae Sars, 1891
               2 Family Endeidae Norman, 1908