Here is a news article about a Fossil and our Petoskey Stones.
https://www.mlive.com/life/2019/11/these-prehistoric-sea-scorpions-might-rival-the-petoskey-stone-for-michigans-coolest-fossil.html?fbclid=IwAR0d22-tmK1AHBOsP3_D3bc-5yHHlaRaE9d2s4KvUJntu7VX3rvl2z1Q7-I