2.8" Thamnopora SP Coral Fossil Coral Reef Devonian Age Verde Valley, Arizona

Location: Martin Formation, Verde Valley, Arizona, United States

Weight: 2.4 Ounces  

Dimensions: 2.8 Inches Long, 2.2 Inches Wide, 1 Inch Thick

Devonian Age 380 Million Years Old

The item pictured is the one you will receive.

Thamnopora SP Fossil Coral

The Devonian period, roughly 410 million years ago, witnessed an exciting return of coral life and the birth of Earth's first major reef ecosystems. These pioneering reefs brought together a fascinating community: stromatoporoids—sponge-like reef builders—working alongside tabulate corals that grew into mounds and branches, horn-shaped rugose corals, and early coralline algae that painted rocks in vibrant colors. As the Devonian drew to a close, the ancestors of today's stony corals made their first appearance, setting the stage for modern reef systems. Yet this thriving coral world didn't last. Around 350 million years ago, corals mysteriously vanished from the fossil record. While the exact reason remains uncertain, evidence suggests that dramatic shifts in ocean levels combined with a sharp decline in atmospheric carbon dioxide may have triggered this remarkable disappearance.