An ammonite fossil with a carved snake's head Zoë Hughes, Curator of Fossil Invertebrates at the Museum, explains, 'Ammonites are extinct shelled cephalopods. All of them had a chambered shell that ...

ammonite fossils were a bit of a mystery. Because they looked like coiled snakes, in England they were often called snakestones. This example of Hildoceras bifrons, found in Yorkshire, has a carved ...

Recent research has focused on understanding the functional morphology of ammonite shells, their metabolic ... which can influence its survival and ecological role. This Nature Research ...

Ammonite shells are used today as index fossils, meaning they can help date other fossils that are found in the same layer of marine rock. These cephalopods make for ideal index fossils because ...