Hello fellow TFF Members
Does anyone have any idea what this might be? Found it, and another one very similar, in the Creede Formation of Creede, Colorado. Sorry that I did not put in a scale; it is approx. 3" in diameter. The center circle has radiating lines. From that circle there are several concentric rings. From what I have read, the site was a salty lake formed in the Creede Caldera. Most of the fossils are plants and the sediment is fine grained volcanic ash.
Almost looks like a jellyfish to me.
Any I.D. will be much appreciated. I am stumped.
Thanks,
ODK