4.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Grape Agate The hydrogen sulfide then reacts

The hydrogen sulfide then reacts with oxygenated groundwater to form elemental sulfur

where they now occur as individual grains and crystal aggregates

The Woolly Rhinoceros was an extinct rhinoceros species that lived throughout Europe and northern Asia during the Pleistocene epoch

The thorax (middle) consisted of multiple articulated segments

4.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Grape Agate The hydrogen sulfide then reactsLocation: Speed Quarry, Clark County, Indiana Weight: 7. 5 Ounces Dimensions: 4. 3 Inches Long, 3. 1 Inches Wide, 2. 2 Inches Thick Middle Devonian Age 380 Million Years Old The item pictured is the one you will receive. Colonial Rugose Fossil Coral (Prismatophyllum Prisma) Dare to own a relic from one of nature's boldest experiments in reef formation. During the Devonian period410 million years agocorals entered the oceans with remarkable force,