1.9" Rare Dicranurus Trilobite - Black Cat Mountain, Oklahoma

Dicranurus is a rare trilobite in the Haragan Formation with only a few complete specimens being found at the Black Cat Mountain Quarry each year. This magnificent example was prepared by Bob Carroll.

This specimen is 1.9" long which is about average for the species. It's nice and prone with good preservation with good preservation. The horns have not been free-stood. We can send it off to have the horns free-stood for some additional cost.

The Black Cat Mountain Quarry produces a limited number of arguably the most beautiful trilobites in the United States each year. Each specimen is meticulously prepared by Bob Carroll under microscope to expose the smallest details. This is a very time consuming process taking many hours but yields spectacular results.

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.
Dicranurus elegans
Black Cat Mountain, Clarita, Oklahoma
Haragan Formation
1.9" long (including spines) on 5.1x3" limestone
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