This is the "Fossil Friday" post #185. Expect this to be a somewhat regular feature of the website. We will post any fossil pictures you send in to [email protected]. Please include a short description or story. Check the #FossilFriday Twitter hash tag for contributions from around the world!
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Drawing by George Langford, Sr.
Jeremy Zimmerman sent us some photos of an absolutely breathtaking Mazon Creek eurypterid. Adelophthalmus mazonensis (Mazon Monday #16) is the only known Mazon Creek species of eurypterid. It was described by Fielding Bradford Meek and Amos Henry Worthen in 1868 from fossils found in the Mazon River. A. mazonensis is considered a Holy Grail Mazon Creek fossil by many.
Thanks for sharing spectacular specimen, Jeremy! It has the tail, which is rarely preserved.
