1.6" Fossil Jellyfish (Essexella) In Ironstone Nodule - Illinois

This is a 1.6" fossil jellyfish (Essexella), preserved in an ironstone nodule, from the Carbondale Formation near Essex, Illinois. This is a very well preserved specimen that shows the bell and arms. Soft bodied organisms are rare in the fossil record making this specimen a unique addition to a collection.

Essexella is a scyphozoan jellyfish, that is to say a true jelly.