Get Devonian with trilobite earrings! Phacops rana is possibly the Devonian Period's most recognizable trilobite and also the state fossil of Pennsylvania. Silver tone trilobite is 1.25 x .75 inch. Total drop length is 1.75 inches from the top of the silver plated fish hook ear wire. Smoke and pet free storage, lead and nickel safe. Includes rubber ear nuts.