"Devil Horned" Cyphaspis Walteri Couple Specimen

Here is nice double specimen of the Devonian trilobite Cyphaspis walteri sometimes referred to as the "Devil Horn" Cyphaspis. Both specimens are about 1.6" long and nicely prepared. The "horns" have been prepared free standing, but all of the other spines are still attached to the matrix.

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)