†Gnathosaurus Meyer 1833 (ctenochasmatid)
Reptilia - Pterosauria - Ctenochasmatidae
Parent taxon: Ctenochasmatidae according to B. Andres and Q. Ji 2008
Sister taxa: Beipiaopterus, Cathayopterus, Ctenochasma, Ctenochasmatinae, Elanodactylus, Gegepterus, Gnathosaurinae, Huanhepterus
Subtaxa: Gnathosaurus macrurus, Gnathosaurus subulatus
Ecology: volant piscivore