1.1" Devil Horned Cyphaspis Walteri Trilobite - Mrakib, Morocco

Here is nice example of the Devonian trilobite Cyphaspis walteri sometimes referred to as the "Devil Horn" Cyphaspis for obvious reasons. This is a nicely presented example of this spiny Moroccan Otarionidae trilobite. It has about 2% shell restoration in total.

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)