This Specimen has been sold.
1.1" Red Lehua Trilobite With Pos/Neg - Fezouata Formation
This is a nicely preserved, 1.1" long, red Lehua trilobite from the Fezouata Formation of Morocco. It split out nicely and both the positive and negative impressions of the trilobite is included. The red coloration is natural and due to the oxidization of iron pyrite. There is a little bit of restoration to the very front of the head on the positive side.
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 described species, filling nearly every evolutionary niche. Due in large part to a hard exoskeleton (shell), they left a excellent fossil record.