3.6" Large, Spiny Quadrops Trilobite - Top Quality Preparation

Large, Spiny Quadrops Trilobite - Top Quality Preparation #267220

This is a large, 3.6" long, spiny Quadrops flexuosa with top quality preparation. The shell detail is excellent and all of the spines are real. There is only about 1% restoration along a repaired crack running through it's head.

Trilobites were a very diverse group of extinct marine arthropods. They first appeared in the fossil record in the Early Cambrian (521 million years ago) and went extinct during the Permian mass extinction (250 million years ago). They were one of the most successful of the early animals on our planet: over 25,000 species have been described, filling nearly every evolutionary niche. Due in large part to their hard exoskeletons (shells), they left an excellent fossil record.