3. What did they eat?

Eurypterids were the predators during the Silurian Period.  This is what they mainly ate:

Trilobites:

• Pincers and telson allowed eurypterids to capture slow moving trilobites
• They used these quick-moving features to their advantage

This is a trilobite, which would have been prey for a pincer-armed eurypterid

Agnatha:

• Eurypterids used their bodies to attack many sea-dwelling creatures, such as agnatha.
• Agnatha were jawless fish, which lacked lateral fins.
• This meant that they were relatively slow compared to eurypterids, making them easy prey.

This is an example of a jawless fish, which was too slow for the eurypterid