2" Calymene Clavicula Trilobite - Oklahoma

This is a rarely offered, 2" long Calymene clavicula trilobite from the Henryhouse Formation of Oklahoma. These trilobites are substantially older than the Devonian material from near Clarita. This specimen has very nice shell preservation and is nicely inflated. Unlike the Haragan there aren't any active quarries in the Henryhouse, so trilobites like this one were collected years ago.