†Dyadentomum Handlirsch 1904 (mayfly)
Parent taxon: Plectoptera according to A. Handlirsch 1906
Sister taxa: Aenigmephemeridae, Babidae, Caenoephemera, Caenoidea, Durlophlebia, Epeoromimidae, Ephemeroidea, Euplectoptera, Heptagenioidea, Mesephemeridae, Palingeniidae, Palingeniopsidae, Sharephemeridae, Sinoephemera, Doteridae, Phthartus, Thnetus, Aphelophlebodidae
Subtaxa: Dyadentomum permense
Ecology: