Eostrix is an extinct genus of primitive owl the extinct family Protostrigidae from early Eocene of Wyoming and the London Clay of England. It was erected by Pierce Brodkorb in 1971 to place a fossil species known until that time as Protostrix mimica.
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