If you have always wanted the FINEST example of a RARE spine-on-spine variant Ceratarges sp. trilobite, this is one that should not be missed. Ceratarges is a member of the Lichida order of trilobites and variants includes those with ordinary spines and those with spines on spines.
This specific example is a beautiful representation of the species. It is absolutely a gem specimen with beautiful natural colors, ALL anatomical spines present, GENUINE, and fully exposed. Every delicate pleural spine shows on the rock and is intact and exposed with all major spines suspended and free from any surrounding rock! The specimen has been meticulously prepared and far exceeds what is usually found on the market, not to mention those example that are either replicas or originals with replica spines.