This is the “Fossil Friday” post #278.  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 another beautiful contribution from Jim Alann.  This one is an absolutely radiant Annularia sphenophylloides. This specimen was collected by Clay Davis, who was an old timer that had a great eye for finding the some of the best fossils.  Thanks for sharing, Jim!

Annularia sphenophylloides is a smaller variety of Annularia, which were the “leaves” of Calamites.  It was described in 1837 by August von Gutbier (1798-1866), a German paleontologist who described many Carboniferous plants from deposits in and around Germany.  For more information, please see Mazon Monday #123.