Isthminia
Isthminia is an extinct genus of river dolphin-like cetacean from the Late Miocene epoch that lived in Panama. The type species is I. panamensis.Description
Fossils of Isthminia were found in the Chagres Formation in Panama. On the basis of the fossil material, including a partial skull, the length of this kind is estimated to be about. Isthminia probably had a predominantly marine lifestyle.
