Three Cordania Wessmani Trilobites & A Paciphacops - Oklahoma

Please note, that this piece is a composite. All four trilobites were found on the surface, ventrally, prepared and remounted onto the limestone.

This is a cool piece with three uncommon Cordania wessmani trilobites along with a Paciphacops cambelli from the Bois d' Arc Formation of Oklahoma. This formation lies just above the Haragan Formation and while it contains many similar trilobites it's not collected that frequently as the trilobites are harder to find. The Cordanias are all around .75" long and the Kainops is 1.15" long. The caramel colored shell is nicely detailed and contrasts well with the light colored rock.

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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