AMMONITE TRACE FOSSIL

This is a particularly fetching trace fossil of an ammonite in a septarian nodule.

Trace fossils or ichnofossils are burrows, footprints, tracks or even faeces left behind by plants and animals that lived long ago. 

Animals may have scurried across a muddy exposure or sea bottom, perhaps eaten a tasty meal then pooped it out — leaving behind clues to how they lived, what they ate and what the environment was like at the time. 

These are wonderfully informative clues to our ancient world.