News in Brief Paleontology

New dolphin fossil makes a splash

river dolphin fossil skull and jaw

The skull and jaws of Isthminia panamensis, a new fossil dolphin from Panama, provides clues to the evolution of river dolphins in the Americas.  

Nicholas D. Pyenson/NMNH Imaging/Smithsonian Institution

By Helen Thompson

- More than 2 years ago

Six million years ago, a relative of modern river dolphins frolicked along Panama’s Caribbean shores, researchers report September 1 in PeerJ.