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
               Family Endeidae Norman, 1908
                 1 Subfamily Endeinae Norman, 1908
                 2 Subfamily †Palaeoendeinae Bamber, 2007