How did the Phacops rana live?

Phacops rana was a type of extinct trilobite that lived during the Devonian period, approximately 390 million years ago. It inhabited shallow marine environments and is known for its distinctive large, compound eyes and folded exoskeleton. Phacops rana likely fed on small organic particles and detritus on the seafloor, using its mouthparts to scavenge for food. Its ability to roll into a ball for protection from predators suggests it had adaptive behaviors for survival in its ecosystem.