This taxon is considered subjective synonym of
of the valid taxon Caenagnathidae
according to the Paleobiology Database.
See the page for Caenagnathidae →
Bibliography
Original description
H. Osmolska. 1981. Coossified tarsometatarsi in theropod dinosaurs and their bearing on the problem of bird origins. Palaeontologica Polonica 42:79-95