†family Euthygrammidae Martynov 1928 (winged insect)
Full reference: A. V. Martynov. 1928. Permian fossil Insects of North-East Europe. Travaux du Musée Géologique prés l'Académie des Scienses de l'URSS 4:1-118
Parent taxon: Caloneurodea according to J. R. Zimmerman 1962
Sister taxa: Amboneuridae, Anomalogrammidae, Apsidoneuridae, Caloneura, Caloneuridae, Gigagramma, Hapalopteridae, Homaloptila, Lusitaneura, Nanogramma, Paleuthygramma, Paleuthygrammidae, Permobiellidae, Pleisiogramma, Pleisiogrammatidae, Pruvostiella, Stenaroceridae, Sthenarocera
Subtaxa: none
Ecology: