[Bilateria] Hatschek, 1888 - bilaterians
see Subkingdom Bilateria Hatschek, 1888
Protostomia Grobben, 1908
see Infrakingdom Protostomia Grobben, 1908
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]
Nematoida Rudolphi, 1808
Nematoda Gegenbaur, 1859 - roundworms
see Phylum Nematoda Gegenbaur, 1859