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.

300-million-year-old ammonite fossil with gemstone-like iridescence discovered by RSU team.

Professor Dr. Chris Shelton and RSU student Kolby Dooling discovered a preserved ammonite fossil, which is a type of shelled cephalopod.

To overcome this issue, the team assembled a new database of Late Cretaceous ammonite fossils to help fill in the sampling gaps in their record.

Visit a park, learn about fossils You can find a whole list of parks that have discovered fossils on the NPS website.

Finding an ammonite shell in a land-formed fossil is therefore as eyebrow-raising as finding dinosaur remains on the bottom of an ancient seafloor.

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 ...

Discover an ancient fish's tragic last meal as it swallowed an oversized ammonite, shedding light on predator-prey interactions in the early Jurassic period.

A paper published in an archaeology journal contends ammonite fossil found in American Indian Hopewell Mound in Ohio came from South Dakota Badlands.