[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]
   Superphylum Panarthropoda Nielsen, 1995 see [unranked] Panarthropoda Nielsen, 1995
     Arthropoda Siebold, 1848 - arthropods see Phylum Arthropoda Siebold, 1848
       1 Genus †Opabinia Walcott, 1912
       2.1 Genus †Anomalocaris Whiteaves, 1892
       2.2.1.1 Genus †Aegirocassis Van Roy, Daley & Briggs, 2015
       2.2.1.2.1 Genus †Schinderhannes Kühl et al., 2009
       2.2.1.2.2 Genus †Hurdia Walcott, 1912
       2.2.2.1.1 Genus †Isoxys Walcott, 1890
       2.2.2.1.2 Genus †Surusicaris Aria & Caron, 2015
       2.2.2.2 Phylum Euarthropoda Lankester, 1904 see [unranked] Euarthropoda