Ephemerelloidea

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Ordo: Ephemeroptera
Subordo: Furcatergalia
Infraordo: Pannota
Superfamilia: Ephemerelloidea
Familiae: Ephemerellidae - Leptohyphidae - †Mesonetidae - Teloganodidae - Tricorythidae

Ephemerelloidea is a superfamily of mayflies in the suborder Pannota. It is a basal group of mayflies with a worldwide distribution. Members of this super-family can be distinguished from those of Caenoidea by the fact that the gills of the nymphs are not filamentous.[1]

The following families are recognised:[2]

Ephemerellidae
Leptohyphidae
Tricorythidae

References

Dias, Lucimar G.; Salles, Frederico F.; Francischetti, Cesar N.; Ferreira, Paulo Sérgio F. (2006). "Key to the genera of Ephemerelloidea (Insecta: Ephemeroptera) from Brazil". Biota Neotropica. 6 (1). doi:10.1590/S1676-06032006000100015.
"Ephemoptera: Mayflies". The Tree of Life Web Project. 2002. Retrieved 2015-06-01.