Cathayopterus is a ctenochasmatid pterosaur from the Early Cretaceous-age Yixian Formation of Liaoning, China. It is a member of the group of pterosaurian filter-feeders. The type species is C. grabaui, described in 2006 by Wang and Zhou.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0