Pakicetidae
Pakicetidae is an extinct family of early whales, among the earliest known cetaceans in the fossil record. They lived in the early Eocene, around 50 million years ago, and fossils are primarily from what is now Pakistan, indicating a South Asian origin for the group. Pakicetidae are considered stem cetaceans within the broader whaling lineage, representing a transitional stage between terrestrial artiodactyls and later fully aquatic whales.
Anatomy and appearance of pakicetids show a combination of terrestrial and aquatic traits. They possessed elongated
Ecology and behavior are inferred from their morphology and the environments where fossils are found. Pakicetids
Taxonomy and significance: Pakicetidae includes the type genus Pakicetus and related forms from early Eocene deposits.