This is the “Fossil Friday” post #9.  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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Here is a stunning Alethopteris serlii from the Mazon River.  It was collected in August 2019 and open via freeze/thaw in late September 2019.  This plant is among the seed ferns (Pteridospermales), which is an extinct group of gymnosperms.