5.9" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Koskinonodon possessed comparable shell dimensions and

possessed comparable shell dimensions and likely sustained itself on gelatinous prey such as jellyfish and other soft-bodied marine fauna

long after the seafloor turned into thick layers of rock

Its extraterrestrial origin and optical properties make it a prized specimen for mineralogical collections and scientific study

still gave it a distinct advantage over most of its prey

5.9" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Koskinonodon possessed comparable shell dimensions andLocation: Michigan, United States Weight: 6. 2 Ounces Dimensions: 5. 9 Inches Long, 2. 2 Inches Wide, 1. 1 Inches Thick The item pictured is the one you will receive. Devonian Age, 350 million years old Petoskey Stone is a unique rock and fossil, specifically a fossilized rugose coral known as Hexagonaria percarinata. These stones are typically pebble shaped and are found primarily in the northwestern and northeastern regions of Michigan's Lower