Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake 1997, nom. cl. inval. - ecdysozoans
see Clade Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake 1997 [Lake, Halanych, Servin & Garey 2020]
Panarthropoda Nielsen, 1995 - panarthropods
Arthropoda Siebold, 1848 - arthropods
see Phylum Arthropoda Siebold, 1848
Chelicerata s.l. Heymons, 1901
see Superclass Chelicerata Heymons, 1901
Pycnogonida Latreille, 1810 - sea spiders
see Epiclass Pycnogonida Latreille, 1810
Genus †Cambropycnogon Waloszek & Dunlop, 2002