Ammonites were shelled cephalopods that died out about 66 million years ago. Fossils of them are found all around the world, sometimes in very large concentrations. The often tightly wound shells of ...

Fossil evidence indicates they had sharp, beaklike jaws to snare prey such as plankton, crustaceans, and other ammonites. They were also preyed on by larger reptiles and fish. As ammonites evolved ...

Vegavis, an ancient bird from Antarctica, identified as the oldest modern bird ancestor with specialized fish-hunting adaptations.