Ammonite
This ammonite shell from my collection dates back to the time that I was studying some geology at University and shows off quite well the wavy nature of the complex patterns within the fossilised structure of this now extinct sea creature.
As the ammonite grew, more chambers were formed with a wavy septum or partition made, dividing the old from the new ones, much like the septum dividing our two nostrils from each other.
The whole fossil is approximately 3 inches at its longest breadth so fits the requirements for the task.
Ammonite
This ammonite shell from my collection dates back to the time that I was studying some geology at University and shows off quite well the wavy nature of the complex patterns within the fossilised structure of this now extinct sea creature.
As the ammonite grew, more chambers were formed with a wavy septum or partition made, dividing the old from the new ones, much like the septum dividing our two nostrils from each other.
The whole fossil is approximately 3 inches at its longest breadth so fits the requirements for the task.