4.4" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Rebbachisaurus Tooth such as the Andean highlands

such as the Andean highlands and coastal zones

often appearing as black

Location: Two Medicine Formation

Fossil specimens reveal the tree’s ancient deciduous conifer characteristics

allowing millimeter-thick layers of laminated limestone to form with an unparalleled abundance of fossil fish

4.4" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Rebbachisaurus Tooth such as the Andean highlandsLocation: Michigan, United States Weight: 3. 8 Ounces Dimensions: 4. 4 Inches Long, 3. 8 Inches Wide, 0. 2 Inches Thick The item pictured is the one you will receive. Devonian Age, 350 million years old Petoskey Stones are unique rocks that also serve as fossils, specifically of the rugose coral Hexagonaria percarinata. Typically pebble shaped, these stones are found primarily in the northwestern and northeastern regions of Michigans Lower Peninsula.