Elegant, 1.25" Stalk-Eyed Cybele Trilobite - Russia
This is a very elegant, stalk-eyed Cybele bellatula trilobite from the Voibokalo Quarry in the St. Petersburg region of Russia. It's 1.25" in length and magnificently prepared with the stalk eyes intact and flowing spines. There is only a small amount of restoration on the longer spines tips that were running off of the rock. A beautiful specimen.
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.