Opalized ammonite fossils are formed through a unique geological process involving the replacement of organic material with silica, which is the primary component of opal. This process can occur ...

Based on the fossil record, ammonites came in a wide range of sizes and shapes, from smaller than an inch to as large as nine feet wide. Some ammonites had long, straight shells, while others had ...

A new study in Nature describing a fossil of a nearly complete and intact bird skull from Antarctica is shedding light on the ...

Learn more about Vegavis iaai, an ancient ancestor of modern-day ducks, and one of the earliest modern birds ever discovered.

Fossilised ammonite shells can be found all around the world, including on parts of Britain's coastline. But if you can't get to a beach to find some, why not start your own collection from home?

A near-perfect fossilized skull discovered in Antarctica reveals the bridge between prehistoric and modern birds, a new study ...

A new study by Ohio University found an important fossil of the oldest known modern bird, which lived in Antarctica when ...

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 ...

Antarctica may have been a refuge for early waterfowl ancestors, shielding them from the mass extinction that wiped out the dinosaurs.

A giant fossil ammonite has been recovered from a fallen boulder on a beach. The edge of the creature's shell was spotted in the block by fossil collector Jack Wonfor on the Isle of Wight's ...