[Panarthropoda] Nielsen, 1995 - panarthropods
   Arthropoda Siebold, 1848 - arthropods see Phylum Arthropoda Siebold, 1848
     Chelicerata Heymons, 1901 see Superclass Chelicerata Heymons, 1901
       Pycnogonida Latreille, 1810 - sea spiders see Epiclass Pycnogonida Latreille, 1810
         1 Colossendeidae Jarzynsky, 1870
         2.1 Endeididae see Family Endeidae Norman, 1908
         2.2 Ammotheidae Dohrn, 1881