This Specimen has been sold.
Bargain, 2.1" Hollardops Trilobite - Ofaten, Morocco
This is a bargain, 2.1" long Hollardops mesocristata trilobite fossil quarried near Ofaten, Morocco. There is shell damage to the right side of its head and a patch of shell restoration on the front-left side, hence the bargain price. Eye facets can be seen in the left eye.
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.