"Devil Horned" Cyphaspis Walteri Trilobite Pair

Here is pair of nicely prepared Cyphaspis walteri sometimes referred to as the "Devil Horn" Cyphaspis for obvious reasons. The spines are natural and it's been nicely prepared with all of the spines free standing. This is a nicely presented example of this spiny Moroccan Otarionidae trilobite. Both specimens are approximately 1.4" in length including the spines.

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)