Two Spiny Leonaspis Trilobites With Crotalocephalina

This is a natural association of two Leonaspis trilobites along with a Crotalocephalina. It was quarried from the Lhandar Formation near Atchana, Morocco. The rock has been expertly sculpted to present the fossils in a very aesthetic display. There is only about 1% restoration in total along repaired cracks.

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.

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