Paleontologists believe these are the bones of a cetotherium, a primitive extinct baleen whale. These creatures, measuring more than 30 meters in length, lived in mid-Miocene to early Pliocene.
Only about 5 million years ago, filter-feeding baleen whales like cetotherium rarely exceeded 20 feet in length. It was only after the Earth cooled and glaciated, and large polar ice caps formed ...