This is “Fossil Friday” post #127.  Expect this to be a somewhat regular feature of the website.  We will post any fossil pictures you send in to esconi.info@gmail.com.  Please include a short description or story.  Check the #FossilFriday Twitter hash tag for contributions from around the world!

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Today, we have a gorgeous trilobite from long-time ESCONI member Jann Bergsten.  This is a Calymene celebra from the Silurian deposits around Chicago.  Thanks for sharing, Jann!  It really is a beautiful specimen!

This first photo shows what was exposed after taking a few whacks at the rock.

After seeing the exposted pygidium and thorax, Jann had the trilobite prepared out and here are the stunning results.