Clade Tridentiseta Kluge et al. 1995 (mayfly)
Parent taxon: Anteritorna according to N. J. Kluge 2004
Sister taxa: Bidentisata, Oculephemeridae, Siphlonuroidea
Subtaxa: Acanthametropodidae Ameletidae Ameletopsidae Ametropodidae Metretopodidae Tetramerotarsata
Ecology: