Kingdom [Animalia] Linnaeus, 1758 - animals
   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
       Tritocerebra see [unranked] Tactopoda Budd, 2001
         Phylum Arthropoda Siebold, 1848 - arthropods
           Subphylum Mandibulata Snodgrass, 1938
             Infraphylum Atelocerata see [unranked] Mandibulata
               Superclass Panhexapoda
                 Epiclass Hexapoda Latreille, 1825 see Superclass Hexapoda Latreille, 1825
                   Class Insecta Linnaeus, 1758 - insects
                     Dicondylia Haeckel, 1866 see Subclass Dicondylia Haeckel, 1866
                       Pterygota Lang, 1888 see Infraclass Pterygota Lang, 1888
                         Metapterygota
                           Superorder †Palaeodictyopterida Bechly, 1996
                             Order †Megasecoptera Brongniart, 1885
                               †Protohymenoptera
                                 01 Family †Ancopteridae Kukalová-Peck, 1975
                                 02 Family †Aspidothoracidae Handlirsch, 1919
                                 03 Family †Aspidohymenidae Martynov, 1930
                                 04 Family †Bardohymenidae Zalessky, 1937
                                 05 Family †Brodiidae Handlirsch, 1906
                                 06 Family †Brodiopteridae Carpenter, 1963
                                 07 Family †Caulopteridae Kukalová-Peck, 1975
                                 08 Family †Hanidae Kukalová-Peck, 1975
                                 09 Family †Protohymenidae Tillyard, 1924
                                 10 Family †Scytohymenidae Martynov, 1937