This Specimen has been sold.
Lot: Bargain Gerastos Trilobite Fossils - 48 Pieces
This is a wholesale flat of 48 bargain trilobites from Morocco. Most are of the genus Gerastos but there are also a few reedops. The trilobites range from .7 to 1.3" long and while many of prone some are enrolled of partially enrolled. The preparation is very rough, hence the bargain price, but they are authentic fossils and none look like they have any restoration.
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.