4.8" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Sardonyx Despite surviving several mass extinction

Despite surviving several mass extinction events throughout their history—including the Permian-Triassic extinction—they ultimately succumbed during the Cretaceous-Paleogene extinction event around 66 million years ago

Paleoclimate Indicator: Strombus bubonius serves as a marker for past warm-water conditions in the Mediterranean

primarily from the Chinle Formation in Arizona and New Mexico

with the upper row being more pronounced than the lower

Comes with a free Rosewood stand

4.8" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Sardonyx Despite surviving several mass extinctionLocation: Michigan, United States Weight: 3. 3 Ounces Dimensions: 4. 8 Inches Long, 2. 3 Inches Wide, 0. 4 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