Bargain, 1.85" Harpides Trilobite - Zagora, Morocco
This is a bargain example of a fairly scarce Harpides trilobite from the base of the Fezouata Formation near Zagora, Morocco. The red coloration is due to the oxidization of iron pyrite which originally preserved the fossil. It has about 5% restoration along repaired cracks and on the right edge of its 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 with over 25k currently described species, filling nearly every evolutionary niche. Due in large part to a hard exoskeleton (shell), they left an excellent fossil record.