life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Hexapoda - insects see Epiclass Hexapoda Latreille, 1825
     Euentomata
       Ectognatha see Class Insecta Linnaeus, 1758
         Dicondylia Haeckel, 1866 see Subclass Dicondylia Haeckel, 1866
           Pterygota Lang, 1888 see Infraclass Pterygota Lang, 1888
             1 Ephemeroptera Hyatt & Arms, 1890 see Order Ephemeroptera Hyatt & Arms, 1891
             2 Metapterygota