The remains of the whale, thought to be about 4 million years old, were discovered in early September in a hillside in Scotts Valley in California. The finding is rare as the 25ft whale was largely intact. This will help enable researchers to get a better understanding of the whale and how it differs from its present-day cousins.
The whale has now been removed from the ground for further examination.
Tail fluke of a humpback, a modern day baleen whale © Duncan Murrell