This is the preview post #13 for the 2024 ESCONI Gem, Mineral, and Fossil Show Live Auction.  The ESCONI Gem, Mineral, and Fossil Show for 2024 will be held on March 16th and 17th at the DuPage Fairgrounds in Wheaton, IL, which is the same location as last year.   All details can be found here.

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Lucky specimen 13 is a nice partial Tullymonster.  This one includes the eye bar, some eye pigment, a good portion of the “neck”, and mid-body.  Tullymonster gregarium is the state fossil of Illinois… I bet you already knew that!