This Specimen has been sold.
2.65" Detailed Hollardops Trilobite - Nice Eye Facets
This is a detailed, 2.65" long Hollardops trilobite fossil from Morocco. The limestone has been carefully removed from around the follow leaving it in high relief against the rock. Excellent shell detail including clean eye facets in both eyes. About 2-3% shell restoration along a repaired crack through the thorax.
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.