Here is a decorative fossil coral colony of the species Hexagonaria hexagona from the Middle Devonian of Bou Tchrafine in Morocco. This coral belongs to the rugosa, an extinct group of reef-building cnidarians that mostly lived solitary or in colonies. Hexagonaria hexagona is characterized by its hexagonal cross-section and star-shaped calyx opening. | |||
Location: | Bou Tchrafine ,Tafilalet, Morocco | ||
Size: | about 106 x 91 x 44 mm | ||
Age: | Middle Devonian, Eifilian (about 380 MA) |