Diademaproetus Trilobite with Gerastos - Foum Zguid, Morocco

This is a bargain 0.9" long specimen of the Proetida trilobite Diademaproetus praecursor from the Lower-Middle Devonian of Morocco. It displays the diagnostic features of this species including the long swept back genal spines. It comes from the lower part of the Timrhanrhart Formation near Foum Zguid, Morocco. Also present on the plate is a 0.6" long Gerastos trilobite.

A description of this trilobite can be found at:

https://www.academia.edu/340181/Trilobites_from_the_upper_Lower_to_Middle_Devonian_Timrhanrhart_Formation_Jbel_Gara_el_Zguilma_southern_Morocco