This specimen looks similar to the Hexagonaria species percarinata, also known as a Petoskey stone, and Michigan's state stone since 1965 3 . It is primarily composed of limestone with some silicification.
Hexagonaria cf. percarinata.
Fossils I've Found on the Beach
This specimen looks similar to the Hexagonaria species percarinata, also known as a Petoskey stone, and Michigan's state stone since 1965 3 . It is primarily composed of limestone with some silicification.