About 385 million years ago in the Devonian age, a strange, two-and-a-half-foot-long shark died and drifted to the bottom of the sea, over what is now the Rhine River valley. Gladbachus adentatus, ...
150-million-year-old shark fossil in Germany defies classification. Bavariscyllium fossil reveals unique features and sensory organs. Study suggests shark evolution is more complex than once believed.