1.85" Hoplolichoides Trilobite With Cystoids - Russia

This is a stunning example of one of the more exotic types of trilobites from the St. Petersburg region of Russia, Hoplolichoides furcifer. It's 1.85" long, very 3-dimensionally and has beautiful, bumpy shell preservation. The preservation and preparation on this specimen is truly exceptional. There are a couple of cystoids on the rock next to the trilobite.

The trilobite has been remounted on the limestone so the cystoids may not have been originally associated with it. There is a pretty good amount of shell restoration spread out in small patches on the shell of the trilobite, likely due to the restoration of weathering.

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 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.
Hoplolichoides furcifer
Vilpovitsy quarry, St. Petersburg region, Russia
Asery level
1.85" long on 3.8x3.8" limestone
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