Some ammonites had long ... sutures—the complexity of which varied tremendously throughout this animal’s evolution. The many chambers of their shells likely helped these cephalopods glide ...

Zoë says, 'Ammonites were quite diverse and evolved rapidly, so if you sample stratigraphically through rocks, you can actually see the evolution and the changes through them.' Ammonites came in a ...

We now know ammonites are extinct cephalopod molluscs related to squids and octopuses, which lived in the seas of the Mesozoic Era between about 201 and 66 million years ago. Their shells are ...

Opalized ammonite fossils are formed through a unique geological process involving the replacement of organic material with ...

It challenges simplistic narratives in paleontology and provides a new perspective on the final chapter of ammonite evolution before their abrupt extinction.

Fossils found in the northern part of Hokkaido are a new type of ammonite, the once-ubiquitous spiral-shelled creatures that went extinct with the dinosaurs 65 million years ago, researchers said.

Here’s everything we know about Kate Winslet and Saoirse Ronan’s new film, Ammonite, including the first-look trailer. When Kate Winslet and Saoirse Ronan sign onto a project, it’s pretty ...

Koichi Fukuoka’s career as a copperplate engraver took an unexpected turn after he encountered fossils of ammonites, a spiral-shelled creature that lived in the age of the dinosaurs. The artist ...