Large moroccan trilobite pygidium ?

[Wafflero27]

Hey guys, I was hoping to get some help trying to identify the species.

 

Bought this pygidium on a rock/mineral shop, they said it was from Alnif, Morocco.

 

What sold me on getting this was the size. The pygidium is 2 inches / 5cm long. I think it looks similar to the pygidium of something like Odontochile, so based on the proportions, the complete individual would’ve been ~6 inches/ 15cm, which would make for a huge one, from my understanding. I appreciate any insight! 

[piranha]

Your specimen has a wider pygidial border: Zlichovaspis cf. paraspinifera

 

Alberti, G.K.B. 1983
Trilobiten des Jüngeren Siluriums Sowie des Unter- und Mittel Devons. IV.
[Trilobites of the Upper Silurian and of the Lower and Middle Devonian. IV.]
Senckenbergiana Lethaea, 64(1):1-87