The Eomysticetidae is a family of primitive baleen whales that lived during the Oligocene and Miocene epoch of many parts of the world. They used their baleens to filter krill and other plankton, just like modern-day baleen whales. Eomysticetids were probably capable of lunge-feeding and they might have been able to hear underwater.
Distribution & Fossil evidence
Fossils of Eomysticetids have been found in many parts of the world, but mostly in Oceania. Fossil evidence even consists of complete skulls of which some still retained teeth, although they might have been non-functional.
Several genuses are known within the Eomysticetidae family.