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 ...

Scientists believed that ammonites, like modern cephalopods, had soft body tissue with tentacles attached to their heads for catching prey. Fossil evidence indicates they had sharp, beaklike jaws ...

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. They are preserved as ...

Ammonites are extinct marine mollusks that ... They were spiral-shelled creatures, closely related to modern cephalopods like squid and octopuses. In fact, they emerged over 100 million years ...

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.

Ammonites are typically simple spiral shells made by cephalopod animals. They became extinct along with dinosaurs 66 million years ago. But three times over the previous 300 million years they ...