"Devil Horned" Cyphaspis Walteri Cluster

Here is nice multiple specimen of the Devonian trilobite Cyphaspis walteri sometimes referred to as the "Devil Horn" Cyphaspis. There are three complete specimens closely associated together on the plate along with a partial. They are nicely prepared with the horns free-standing and great shell detail. Only minor restoration along repaired cracks.

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)