Order Notoptera Crampton 1915 (winged insect)
Synonym: Xenonomia Terry and Whiting 2005
Parent taxon: Polyneoptera according to B. Wipfler et al. 2019
See also Arillo and Engel 2006, Eades 2012, Kluge 2010, Misof et al. 2014, Peng et al. 2025 and Wappler 2001
Sister taxa: Anartioptera, Archaeorthoptera, Belebeus, Blattopteroidea, Dermapterida, Eukinolabia, Gallophasmatidae, Haplocercata, Hebeigrammidae, Holopandictyoptera, Ideliopsis, Kitshuga, Magicivenidae, Mantoblattidae, Menatacridium, Mystroptera, Orthacanthacris incertus, Orthoptera, Orthopteroidea, Paoliida, Parablattogryllus, Permofossilis, Plecoptera, Plecopterida, Polyplecoptera, Protorthoptera, Spectra, Suksunus
Subtaxa: Adeloblattoidea Grylloblattodea Mantophasmatodea
Ecology: