This Specimen has been sold.
Bargain, 2.4" Reedops Trilobite - Atchana, Morocco
This is a 2.4 long, Reedops trilobite collected near Atchana, Morocco. The hard limestone has been carefully removed, leaving it perched as if it's about to crawl off of the rock. A lot of shell detail including visible eye facets.
Trilobites were a very diverse group of extinct marine arthropods. They first appeared in the fossil record in the Early Cambrian (521 million years ago) and went extinct during the Permian mass extinction (250 million years ago). They were one of the most successful of the early animals on our planet with over 25k currently described species, filling nearly every evolutionary niche. Due in large part to a hard exoskeleton (shell), they left an excellent fossil record.