Beautiful Hollardops & Austerops Trilobite Association

This is a stunning, natural association of two different trilobites from Ofaten, Morocco. There is 2.3" long Hollardops with orange eye facet preservation next to a 1.9" long Austerops. The preparation is quite nice and most of the surrounding limestone has been removed leaving the trilobites in a very aesthetic display.

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: over 25,000 species have been described, filling nearly every evolutionary niche. Due in large part to their hard exoskeletons (shells), they left an excellent fossil record.

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