Devil Horned Cyphaspis Trilobite Cluster - Mrakib, Morocco

This is a cool, free-standing, cluster of three trilobites (Cyphaspis walteri) from the Bou Dib Formation at Mrakib, Morocco. There are four complete Cyphaspis with the largest being 1.2" long, as well as a partial Cyphaspis. Many of the horns and spines have been prepared free-standing.

This species of Cyphaspis is sometimes referred to as the "Devil Horn" Cyphaspis for obvious reasons. This species was finally formally described in 2014. A link to the paper can be found below.

“Devil horned” Cyphaspis (Trilobita, Otarioninae): examples from the Middle
Devonian of the Ardennes (Belgium), Eifel (Germany) and Ma’der (Morocco)