Pakicetidae

Pakicetus (meaning 'whale from Pakistan') is an extinct genus of amphibious cetacean of the family Pakicetidae, which was endemic to South Asia during the Ypresian (early Eocene) period, about 50 million years ago. It was a wolf-like mammal, about long, and lived in and around water where it ate fish and other animals. The name Pakicetus comes from the fact that the first fossils of this extinct amphibious whale were discovered in Pakistan. The vast majority of paleontologists regard it as the most basal whale, representing a transitional stage between land mammals and whales. It belongs to th

Pakicetidae ("Pakistani whales") is an extinct family of early whales that lived during the Early Eocene in northern South Asia. Unlike modern cetaceans, they had well-developed limbs and were capable of walking. The species included were fox to wolf-sized.

Ichthyolestes (meaning "fish robber" from Ancient Greek ἰχθύς (ikhthús), meaning "fish", and λῃστής (lēistḗs), meaning "robber") is an extinct genus of pakicetid cetacean endemic to the northern Indian subcontinent during the Lutetian age of the Eocene. It is monotypic, with I. pinfoldi as the only species.

Nalacetus is an extinct pakicetid early whale, fossils of which have been found in Lutetian red beds in Punjab, Pakistan (, paleocoordinates ). Nalacetus lived in a fresh water environment, was amphibious, and carnivorous. It was considered monophyletic by . It was said to be wolf-sized and one of the earliest forms of the order Cetacea.