4.5" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Metasequoia Conopygus Sea Urchins belong to

Conopygus Sea Urchins belong to a fascinating group of marine invertebrates that have thrived in the world’s oceans for hundreds of millions of years

statistical approaches have proven effective in producing consistent chronologies in both continental and marine contexts

likely propelling themselves with a finned tail while steering using small

the Democratic Republic of Congo

surviving until the end of the last glacial period

4.5" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Metasequoia Conopygus Sea Urchins belong toLocation: Michigan, United States Weight: 2. 9 Ounces Dimensions: 4. 5 Inches Long, 1. 9 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 that are also fossils, specifically the fossilized rugose coral Hexagonaria percarinata. Typically pebble shaped, these stones are found mainly in the northwestern and northeastern regions of Michigan's Lower Peninsula.