"Proornis" is an extinct genus of basal bird from the Early Cretaceous (Barremian, 130-125 mya) of northernmost North Korea. Since it was never formally described in a peer - reviewed journal, the genus is considered a nomen nudum. A single species, "Proornis coreae", is known.
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