3.1" Asaphus Punctatus Trilobite - Russia

This is a good-sized, 3.1" example of the stalked eyed trilobite Asaphus punctatus. It comes from the Gostlitsy Quarry in the St. Petersburg region of Russia. There are fragments of a large Cheirurid trilobite scattered in the surrounding limestone.

Like nearly all of the Russian asaphid trilobites there is some shell restoration. Shell restoration is around 10% on this specimen, scattered in small patches where the shell probably flaked during collection.

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.
Asaphus punctatus
Gostlitsy Quarry, St. Petersburg region, Russia
Asery level
3.1" long, rock 6.8x3.8"
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