Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Superphylum Articulata Cuvier see Supraphylum Articulata Cuvier
           Phylum Arthropoda Siebold, 1848 - arthropods
             Subphylum Tracheata
               Class Insecta Linnaeus, 1758 - insects
                 Subclass Pterygota Schott & Endl.
                   Superorder Ephemeria
                     Order Ephemeroptera Hyatt & Arms, 1891 - mayflies
                       1 Family Baetidae Leach, 1815
                       2 Family Leptophlebiidae Banks, 1900
                       3 Family Siphlonuridae Ulmer, 1920
                       4 Family Caenidae Newman, 1853
                       5 Family Ecdyonuridae
                       6 Family Ephemeridae (Latreille, 1810) Leach, 1815
                       7 Family Polymitarcidae