Reedops, Crotalocephalina & Paralejurus Trilobite Association

This is a cool, natural association of three different genus of trilobite in the same rock. There is a 2.2" long Crotalocephalina sp., a 2.2" long Reedops and a smaller 1.1" Paralejurus. While these are all fairly common trilobites, to get three species in this close of association is unusual. They have been nicely prepared and the rock around them sculpted so that the piece displays very aesthetically.

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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