Ilerdopteryx is an extinct genus of birds, perhaps an enantiornithine, from the Lower Cretaceous La Pedrera de Rubies lithographic limestone of Spain. The type species, I. viai, is known only from a collection of isolated contour feathers.
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