Hoplophoneus is an extinct genus of the family Nimravidae, subfamily Nimravinae, endemic to North America during the Late Eocene to Early Oligocene epochs (38—33.3 mya), existing for approximately 3.9 million years.
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