FOS1036 Pyrite Ammonite, Morocco $40 69mm
- Quantity






Lower Devonian - End of Cretaceous
400 -65 Million Years old.
Various Locations
Ammonites were a ‘squid’ that had a protective shell, with air chambers used to control buoyancy. These chambers are a good representation of the Fibonacci Sequence and during fossilisation often contains calcite, aragonite or other minerals. Ammonites became extinct during the KT Extinction event, although their relative, the nautilus, survives to this day.