This Specimen has been sold.
2.7" Austerops Trilobite With Nice Eyes
This is a detailed, 2.7" Austerops (Phacops) trilobite from the Devonian deposits of Morocco. Excellent preparation, and it displays very aesthetically the limestone that it was found in. Nice eye facet preservation. There is about 2% shell restoration along the repaired crack.
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.