Small Gerastos Trilobite From Morocco

Here's an inexpensive of the Proetida trilobite Gerastos tuberculatus from the Middle Devonian of Morocco. The Proetidae family of trilobites was the last group to go extinct at the end of the Permain period. I purchased a large lot of these partially prepared and did some final cleanup work on these using air abrasives under microscope to reveal the great shell detail.