3.8" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Knightia These footprints are typically three-toed

These footprints are typically three-toed

including the Permian-Triassic extinction

These extinct arthropods lived from approximately 485 to 250 million years ago and were among the most distinctive marine creatures of their time

against the odds of continental drift

Geological Context and Mineralization

3.8" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Knightia These footprints are typically three-toedLocation: Speed Quarry, Clark County, Indiana Weight: 7. 5 Ounces Dimensions: 3. 8 Inches Long, 3. 8 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,