2.3" Red Crotalocephalina Trilobite - Hmar Laghdad, Morocco

This is an unusual, deep red Crotalocephalina trilobite from Hmar Laghdad, Morocco. The color of the shell preservation is quite unique at this location and is due to the high levels of iron in the silicified exoskeleton. A paper on this unique preservation can be found below.

Red Devonian trilobites with green eyes from Morocco
and the silicification of the trilobite exoskeleton