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
     1 Genus †Aysheaia Walcott, 1911
     2.1.1 Genus †Orstenotubulus Maas, Mayer, Kristensen & Waloszek, 2007
     2.1.2 Onychophora - velvet worms see Phylum Onychophora Grube, 1853
     2.2 Arthropoda Siebold, 1848 - arthropods see Phylum Arthropoda Siebold, 1848