This Specimen has been sold.
Bargain, 3" Zlichovaspis Trilobite With Two Reedops
This is a 3" long specimen of Zlichovaspis rugosa associated with two smaller Reedops trilobites from Atchana, Morocco. Visible eye facets in both eyes in the eyes of all of the specimens. One of the Reedops is complete but partially enrolled, while the other is missing it's back half. The preparation is a bit rough in areas leaving scratches on the shell, and there is some shell restoration, particularly on the head of the Zlichovaspis, hence the bargain price.
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.