Double "Devil Horn" Cyphaspis Trilobite

Here is nice example of the Devonian trilobite Cyphaspis walteri. sometimes referred to as the "Devil Horn" Cyphaspis, for obvious reasons. There is a second Cyphaspis next to it just missing it's tail. The spines on these trilobites are natural, there has just been about 3-4% of shell restoration on the complete specimen, mainly where the crack ran through it.

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)