[Bilateria] Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
   ecdysozoans see Clade Ecdysozoa Aguinaldo, Turbeville, Linford, Rivera, Garey, Raff & Lake 1997, nom. cl. inval.
     Class †Dinocaridida Collins, 1996
       1 Genus †Pambdelurion Budd, 1998
       2 Genus †Kerygmachela Budd, 1993
       3.1 Genus †Opabinia Walcott, 1912
       3.2.1 Genus †Cucumericrus Hou, Bergström & Ahlberg, 1995
       3.2.2.1.1 Genus †Anomalocaris Whiteaves, 1892
       3.2.2.1.2 Genus †Amplectobelua Hou, Bergström & Ahlberg, 1995
       3.2.2.2.1 Genus †Peytoia Walcott, 1911
       3.2.2.2.2 Genus †Parapeytoia Hou, Bergström & Ahlberg, 1995