Fossil evidence has established that modern dolphins and whales derived from small, four-limbed, hoofed animals that lived in South Asia during the Eocene around 50 million years ago. The ...

Certain skeletal features of archaic whales, particularly their large, triangular cheek teeth, strongly resembled those of mesonychids, a group of hoofed Eocene carnivores. (The massive ...

The researchers analyzed microfossils in the sediment layers of the whale to conclude it to be from the Eocene period. The team had been excavating the region for ancient marine mammals for more ...