3.2" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Pine Cone Ammonites evolved from straight-shelled nautiloid

Ammonites evolved from straight-shelled nautiloid ancestors during the Devonian period

Mosasaurs lived during the late Cretaceous period

The country's mining history dates back centuries

The Woolly Rhinoceros is an extinct species of rhinoceros that once thrived across Europe and northern Asia during the Pleistocene epoch

3.2" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Pine Cone Ammonites evolved from straight-shelled nautiloidLocation: Michigan, United States Weight: 1. 6 Ounces Dimensions: 3. 2 Inches Long, 1. 7 Inches Wide, 0. 3 Inches Thick The item pictured is the one you will receive. Devonian Age, 350 million years old Petoskey Stones are unique rocks and fossils, specifically the fossilized rugose coral Hexagonaria percarinata. Typically pebble shaped, these stones are found primarily in the northwestern and northeastern regions of Michigan's Lower Peninsula. They