family †Permotettigoniidae Family incertae sedis Genus †Permophyllum Infraorder Tettigoniidea Superfamily Hagloidea - grigs Family †Eospilopteronidae Family †Haglidae Family †Hagloedischiidae Family †Prezottophlebiidae Family Prophalangopsidae Family †Tuphellidae Superfamily †Phasmomimoidea Family †Phasmomimidae Superfamily Rhaphidophoroidea Family Rhaphidophoridae - camel crickets, cave crickets, cave wētā Superfamily Schizodactyloidea Family Schizodactylidae - dune or splay-footed crickets Superfamily Stenopelmatoidea Family Anostostomatidae - wētā (except cave wētā), king crickets Family Cooloolidae - Cooloola monsters Family Gryllacrididae - leaf-rolling crickets Family Stenopelmatidae - Jerusalem crickets Superfamily Tettigonioidea Family †Haglotettigoniidae Family Tettigoniidae - bush crickets, katydids, koringkrieks Superfamily Incertae sedis Family incertae sedis Genus †Tettoraptor Infraorder incertae sedis Superfamily †Gryllavoidea Family †Gryllavidae Superfamily Incertae sedis Family †Palaeorehniidae (syn "Zeuneropterinae") Family †Vitimiidae Phylogeny The phylogenetic relationships of the Ensifera, summarized by Darryl Gwynne in 1995 from his own work and that of earlier authors, are shown in the following cladogram, with the Orthoptera divided into two main groups, Ensifera and Caelifera (grasshoppers). Fossil Ensifera are found from the late Carboniferous period onwards. The oldest known fossil in the Archaeorthoptera, the crown group of the Orthoptera, and also the oldest member of the Pterygota (winged insects), is from the Namurian (324 mya) Lower Carboniferous beds in the Upper Silesian Basin of the Czech Republic. Notes References External links The Orthopterists' Society Insect suborders Cisuralian first appearances Extant Permian first appearances