Ammonite

Ammonites were marine molluscs that lived in large numbers during the period of the dinosaurs, from the Devonian to the end of the Cretaceous period. Although they disappeared with the dinosaurs, their beautiful and often complex shells have been preserved as fossils and offer us a glimpse into Earth’s distant past.

Why are ammonites important?
• Guide Fossils: Because of their rapid evolution and wide geographic distribution, ammonites are used by paleontologists to date rocks and understand paleoenvironmental conditions.
• Variety of species: There were thousands of different species of ammonites, each with its own distinctive shell. This diversity helps us better understand the mechanisms of evolution.
• Artistic value: The beautiful and elaborate designs of their shells have inspired artists and collectors for centuries.

What were the ammonites like?
• Shell: The most characteristic feature of ammonites is their spiral shell, which was divided into chambers. As the animal grew, it added new chambers to the shell.
• Lifestyle: It is believed that ammonites swam freely in the waters and fed on smaller sea creatures.
• Extinction: Like many other organisms, ammonites disappeared during the mass extinction that marked the end of the Cretaceous period. The causes of this disappearance, such as the fall of a large asteroid, are the subject of ongoing research.

Where can we find ammonite fossils?
Ammonite fossils can be found in many parts of the world, including Greece. Important fossiliferous formations with ammonites exist in Chios and Argolis.

In summary, ammonites are fascinating organisms that help us better understand Earth’s history and the evolution of life. Their fossils are a window into the past and remind us of the beauty and diversity of nature.