1.55" Asaphus Latus with Partial Kowalewskii Trilobite - Russia

Asaphus Latus with Partial Kowalewskii Trilobite - Russia #99206

This is a cool association of a 1.55" long Asaphus latus next to a partial, stalk-eyed Asaphus Kowalewskii trilobite. Both of the trilobites have some areas of shell restoration.

Photo of the Vilpovitsy 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: over 25,000 species have been described, filling nearly every evolutionary niche. Due in large part to their hard exoskeletons (shells), they left an excellent fossil record.

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