These trilobite earrings are the perfect accessory for the fashionable paleontologist! Sculpted on all sides, and cast in pewter, with an antiqued finish. These earrings are modeled after a trilobite of the order Proetida. Proetids appear in the fossil record up until the time of the Permian-Triassic (P-T) extinction, making them the last known living order of trilobites. Great for paleontologists, students, and anyone fascinated by prehistoric life! Dimensions: 2.6 cm long X 1.8 cm wide X 0.6 cm deep Weight: 6.5 Grams