The empty ammonite shell chambers may have caused it to float, its shiny shell may have attracted attention, and the fish may have then swallowed it.

Long ago in the Cretaceous period, this shell belonged to a type of marine mollusk called an ammonite. Somehow, the sea creature's shell ended up entombed in tree resin, which fossilized into an ...

While ammonite shells are abundant in the fossil record, it was only recently that scientists have found a very rare fossil of the soft parts of an ammonite. However, fossilised evidence of ammonite ...

The fossil clearly shows the imprint of a 4-inch-wide (10 centimeters) spiral ammonite shell lodged up against the fish's spine. And for a fish of this size, that's likely way too big to swallow.

From whale earwax to a shimmering ammonite shell, the “Objects of Wonder” exhibition spotlights some of the museum’s most intriguing specimens ...

The shell an ancient ammonite adopted was the one that suited or eventually shaped its particular lifestyle and swimming form.

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?

He agrees that fragmented ammonite shells appear to be the remnants of an ancient meal. Ammonite shell, Thomas explained, “isn’t going to break easily.

The hoard contains "very rare" finds, including bronze and gold artifacts, amber beads, a crystal, an ammonite shell and a fossilized shark tooth.

A prehistoric sea monster never-before-known to man was hunting prey in North America 85 million years ago, fossils found decades ago in Canada reveal.