Synonym: Hapalopteroidea Handlirsch 1906
Full reference: A. V. Martynov. 1938. Permian fossil Insects from the Arkhangelsk district. Part V. The family Euthygrammidae and its relationships (with the description of a new genus and family from Chekarda). Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 7(3):69-80
Parent taxon: Panorthoptera according to T. Dvořák et al. 2021
See also Béthoux et al. 2004, Carpenter 1965, Carpenter 1992, Eades 2012, Handlirsch 1906, Prokop et al. 2015 and Rasnitsyn 2004
Sister taxa: Bruaylogus, Cacurgidae, Geraridae, Permostridulidae, Sinogerarus
Subtaxa: Apsidoneuridae Aviogramma Caloneuridae Fusiogramma Gallogramma Gigagramma Hapalopteridae Jarmiloptera Lodevogrammatidae Lusitaneura Nanogramma Oudardgramma Paleuthygramma Paraspiculum Permobiellidae Pleisiogramma kemerovoense Pruvostiella Stenaroceridae
Ecology: