Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Chelicerata Heymons, 1901 Class Pycnogonida Latreille, 1810 - pycnogonids Order †Nectopantopoda Bamber, 2007 [monotypic] Family †Haliestidae Bamber, 2007