An excellent example of a little rarity, particularly of such fine detail and quality of preservation and preparation. The carapace exhibits wonderful morphological features. The most notable being the thorax spines. A Proetida order of trilobites which exhibits long genal spines, short and fine axial spines and numerous pits around the glabella believed to have possibly been used for sensory aid in the murky bottom of the seabed.
For more reference: B. D. Chatterton, R. A. Fortey, K. D. Brett, S. L. Gibb, and R. C. McKellar. 2006. Trilobites from the upper Lower to Middle Devonian Timrhanrhart Formation, Jbel Gara el Zguilma, southern Morocco, the middle Atlas. Palaeontolographica Canadiana (25)1-177. The type specimen: UA 13394, an exoskeleton. The type geological location is Zguilma section, Timrhanrhart Formation, Lower Bed, ZGEE1, which was an Emsian shallow-subtidal mudstone in the Timrhanrhart Formation of the Atlas Mountains, Morocco, North Africa.