This Specimen has been sold.
1.7" Scabriscutellum Trilobite Fossil - Tiny Eye Facets
This is a 1.7" long, Scabriscutellum trilobite from Morocco. The head is tucked but it would be about 1.7" long if outstretched. The preservation is so good that you can see hundreds tiny eye facets in both eyes.
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 described species, filling nearly every evolutionary niche. Due in large part to a hard exoskeleton (shell), they left a excellent fossil record.