Trilobites, Calymene in Morocco
Trilobites are very old fossils that lived before the dinosaurs.
The Trilobites were among the arthropods and lived under water. Millions of years ago there lived a lot of different kinds, these trilobites belong to the genus Calymene (the loose ones) and the Phacops (in the box) and are both found in Morocco.
In total, there are currently 17,000 different trilobites described in 9 orders. All trilobites had an exoskeleton of lime. It is this fossilized skeleton, and today recovered the day.