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

Location: Assa Zag Region, Morocco

Weight: 14.1 Ounces   

Dimensions: 3.9 Inches Long, 3.3 Inches Wide, 1.7 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 lived in ancient marine environments during the Devonian period, roughly 350 million years ago. These corals formed large, rounded colonies composed of tightly packed hexagonal corallites, creating the distinctive geometric patterns for which they are known.

Well-preserved Hexagonaria fossils occur in Devonian limestone deposits, with notable specimens coming from Morocco, particularly the Sahara Desert and Assa Zag region. Polishing these fossils reveals intricate internal structures, including a central columella and fine radiating septae, which once supported the living coral polyps.

Hexagonaria is closely related to the famous Petoskey stone of Michigan, USA, commonly identified as Hexagonaria percarinata. Appreciated for their natural color variations—ranging from light creams to rich brown tones—polished Hexagonaria corals are widely used in jewelry, decorative pieces, and fossil collections, combining scientific importance with striking visual appeal.