2.1" Silurian Trilobite (Calymene Clavicula) - Oklahoma

This is a 2.1" long, Silurian aged trilobite (Calymene clavicula) from the Henryhouse Formation of Oklahoma. These trilobites are substantially older than the Devonian material from near Clarita, Oklahoma. Unlike the Haragan there aren't any active quarries in the Henryhouse, so trilobites like this one were collected years ago. This one is very large for the species. If the tail wasn't tucked it would have been around 2.5" long. There are a few small patches of restoration.