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
       Mandibulata see Subphylum Mandibulata Snodgrass, 1938
         "Crustacea" Brünnich, 1772 see [unranked] Crustaceomorpha Chernyshev, 1960
           Ostracoda Latreille, 1806 see Class Ostracoda Latreille, 1802
             1.1 Genus †Eopilla Schallreuter, 1993
             1.2 Genus †Nanopsis Henningsmoen, 1954
             1.3 Genus †Kimsella Salas, Vannier & Williams, 2007
             2 Genus †Myodoprimigenia Gabbott, Siveter, Aldridge & Theron, 2003