Physeterula was a prehistoric close relative of the sperm whale from the Miocene. Its fossils have been found in Europe and the United States. This large species is the most stemward physeterid, retaining functional upper teeth lacking enamel.
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