Clymeniidae is a family in the ammonoid order Clymeniida. It is characterized by a dorsal siphuncle that runs along the inside of the whorls, unusual for ammonoids.
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