A dolphin fossil believed to be at least 25 million ... under five minutes as an ancestor of whales and dolphins. “Their teeth were a little different, their habits were a little.

The fossils, include parts of whales, teeth from megalodon sharks ... The discovery of the fossilized skull of the largest river dolphin ever known was announced in April. This ancient dolphin ...

TSU, Mie Prefecture--A fossil discovery ... What emerged was the head of a dolphin about 30 centimeters long, which had 4-cm-long ear bones, eye and nose sockets, teeth and other skull parts.

"Future paleontologist, Molly, was out searching for fossils on Christmas morning when, what to her wondering eyes appeared…but a huge Megalodon tooth!" the museum wrote on its Facebook page.