This is the preview post #3 for the 2026 ESCONI Gem, Mineral, and Fossil Show Live Auction.  The ESCONI Gem, Mineral, and Fossil Show for 2026 will be held on March 21th and 22nd at the DuPage Fairgrounds in Wheaton, IL, which is the same location as last year.   All details can be found here.

---

For today, we have another of the Mazon Creek fossils for the Live Auction at the 2026 ESCONI Show. This is an absolutely beautiful Acanthotelson stimpsoni collected from Pit 11. It’s very detailed with both legs and antennae present.

Acanthotelson stimpsoni is a syncarid shrimp. It’s one of the most common shrimp found amongst the Braidwood fauna. A. stimpsoni was described in 1865 by F.B. Meek and A. H. Worthen. For more information, see Mazon Monday #52.

The auction for this item has not yet been determined. We’ll post that information when it is known. Until then, enjoy!