Trilobite 'hyper-eye' (IMAGE) University of Cologne Caption Phacops geesops, a trilobite from the Devonian age. The animal's eyes consist of 200 single lenses each, spanning six small facets, which again form one eye each. Credit Dr Brigitte Schoenemann Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.