Eyes are crucial players in the evolution of organisms. They allow an animal to find food, a mate, potential prey, to avoid predators and aid in regulating the internal clock by differentiating day from night. Eyes are also delicate features that tend to be not well preserved in fossil crustaceans.
Click here for original story, The ‘Platypus’ of the crab world was an active predator that lurked the Cretaceous seas
Source: Phys.org