These fossils, Hexagonaria percarinata, are often just called Petoskey stones. They are most commonly found in Michigan, where they lived during the Devonian Era—when Michigan was actually a warm sea.
We will choose your fossil at random. If you would like to personally select your stone, please join us during one of our live sales where we would love to show each off.
Please note, as shown in the photos, the top of these stones is polished and the bottom is left raw. This showcases the stone in both forms.
