Rarely-Offered Calymene clavicula Silurian Trilobite

Calymene clavicula is a Calymenid trilobite (Order Phacopida, Family Calymenidae) coming from the Silurian Henryhouse Formation strata of Pontotoc County, Oklahoma. As such, it is substantially older than the Devonian material for which Oklahoma is famous. This trilobite was collected and prepared by Bob Carroll, a world-renowned preparator of Oklahoma Devonian trilobites in a location away from his Black Cat Mountain quarry. Others may use less care, resulting in a less desirable specimen. Bob was only able to bring three examples of this genus to Tucson this year, and I was able to secure two of them. This is a very well-inflated example, and would make a excellent addition to any collection of Oklahoma trilobites.