Cornuproetus cornutus

Cornuproetus cornutus is a Devonian trilobite, meaning it lived during the Devonian Period, roughly 419 to 359 million years ago. Specimens are commonly collected from Devonian-aged limestone deposits in the Anti-Atlas mountains of Morocco.

The species name 'cornutus' refers to prominent horn-like glabellar projections on the trilobite's head shield, or cepalon. These distinctive spines extending from the central lobe of the head are the defining visual feature that distinguishes Cornuproetus cornutus from other proetid trilobites.

Cornuproetus cornutus belongs to the order Proetida, a group of trilobites that outlasted most other orders and were among the last surviving trilobites before the entire class went extinct at the end of the Permian Period. Proetids were typically small and morphologically diverse.