3.1" Polished Hexagonaria Coral Fossil Devonian Age 350 Million Yrs Old Morocco

Location: Assa Zag Region, Morocco

Weight: 3.2 Ounces   

Dimensions: 3.1 Inches Long, 1.7 Inches Wide, 0.7 Inches Thick 

The item pictured is the one you will receive.

Devonian Age, 350 million years old

Hexagonaria is an extinct genus of colonial rugose coral that thrived in Earth’s oceans during the Devonian Period, more than 350 million years ago. At that time, vast shallow seas covered large portions of what are now North America and North Africa, creating ideal conditions for extensive coral reef development. Hexagonaria formed large, rigid colonies composed of countless tightly packed skeletal cups, most commonly hexagonal in shape.

Each corallite contains a central skeletal structure surrounded by radiating internal walls, producing the distinctive honeycomb and floral patterns that are characteristic of this genus. These repeating geometric designs reflect the biological organization of the coral colony and offer a rare opportunity to observe ancient coral anatomy preserved in stone.

Notable fossil deposits occur in the Assa Zag region of the Moroccan Sahara and in Devonian limestone formations of Michigan, USA. In Michigan, the species Hexagonaria percarinata is widely known as the Petoskey stone and holds official state stone status. When cut and polished, Hexagonaria coral reveals intricate internal patterns and warm natural colors, ranging from pale creams and soft grays to deeper tans and browns. These fossils are prized for lapidary work, jewelry, educational collections, and decorative displays, while also serving as important scientific records of Devonian reef ecosystems and early marine biodiversity.