Some protocetids were probably the ancestor of all later cetaceans (including the modern groups). They are the first whales found outside of Indo-Pakistan, and are known from Africa and North America. Protocetids are only found in sediments deposited in shallow seas. Protocetids were the first whale group to develop tail flukes and most were probably agile and quick aquatic hunters who preyed on small animals.Their teeth were reduced and most prey was probably swallowed whole.
Ambulocetidae
| Basilosaurids and
Dorudontids | Bibliography | Hearing
| India |
Locomotion | Mysticetes
| Odontocetes | Osmoregulation
| Pakicetidae |
Pakistan | Protocetidae
| Remingtonocetidae | Whale
| Whale Origins!