Permosialidae (Insecta: Palaeomanteida): Composition, System and Relationships

The composition of the Order Miomoptera is considered at the family level, and the system of fhe family Permosialidae is revised. Keys to families of the order and to genera and species of the famly Permosialidae are provided, as well as the synonymics and unified diagnoses of the genera and species of Permosialidae. Composition of the family is found uniform through its entire time interval, with the type species always prevalent and the only one recorded at its start (late Kungurian) and finish (Triassic). Noteworthy is the space distribution, wide all over Angarida except for a unique record in Australia.