16-million-year-old dolphin skull found in the Peruvian Amazon

Scientists on Wednesday unveiled a 16 million-year-old fossil skull unearthed in Peru of a river dolphin that once swam in waters that are now the Amazon, and whose closest living relative is the South Asian river dolphin in India's Ganges River.

Paleontologist Salas said the skull belonged to the largest dolphin known to have inhabited the waters of South America, measuring 3 to 3.5 meters long. It was named Pebanista yacuruna after the Yacuruna, a Peruvian mythological being that lived in deep water.