2.05" Red Coltraneia Trilobite Fossil - Huge Faceted Eyes

The trilobites were hard to find complete at this location and according to my sources, the locality has been collected out recently, so the there probably won't be many more of these red trilobites coming onto the market.

The red coloration is due to 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

About Trilobites

Trilobites are an extinct class of marine arthropods that thrived for nearly 270 million years, from the early Cambrian to the end of the Permian period (around 521 to 252 million years ago). They are one of the most successful and diverse groups in the history of life, with over 25,000 described species spanning a wide range of sizes, shapes, and ecological niches. Known for their distinctive, segmented exoskeletons, trilobites provide invaluable insights into the evolutionary history of arthropods and the dynamics of ancient marine ecosystems.