This is a very nice Gerastos granulosus from the Devonian of Morocco. This trilobite is nicely articulated and exhibits very good detail. Both free cheeks are intact, the pustulose nature of the large glabella is quite evident, and the eyes are easily seen. The black color of the bug contrasts wonderfully with the light-grey matrix. The fossil is well presented on the sculpted pillar of dense limestone. This is a detailed example of an complete Gerastos granulosus from the Atlas Mountains.