Hexapods - insects
see Epiclass Hexapoda Latreille, 1825
Class Insecta Linnaeus, 1758 - insects
Subclass Dicondylia Haeckel, 1866
Infraclass Pterygota Lang, 1888
Division Ephemeroptera Hyatt & Arms, 1890
Order Ephemeroptera Hyatt & Arms, 1891 - mayflies
Suborder Rectracheata
Superfamily Caenoidea Newman, 1853
1 Family Neoephemeridae Traver, in Needham et al., 1935
2 Family Caenidae Newman, 1853