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
Genus †Opabinia Walcott, 1912