1.05" Wide, Enrolled Asaphus Expansus Trilobite - Russia

Wide, Enrolled Asaphus Expansus Trilobite - Russia #126158

This is a 1.05" wide, enrolled Asaphus expansus trilobite. It was collected from the Putilovo quarry in the St. Petersburg region of Russia. There is a small amount of shell restoration on its head.

Photo of the Putilovo quarry near St. Petersburg Russia where this trilobite was found.

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.

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