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Pakicetinae is a subfamily of Pakicetidae of the order Archaeoceti. Pakicetinae were terrestrial and amphibious mammals found in Asia. Pakicetidae lived from the Early Eocene subepoch through the Middle Eocene subepoch (55.8 mya—40.4 mya) and existed for approximately 15.6 million years.
References
Pakicetinae Wikipedia(Text) CC BY-SA