Double sided fish fossil

In Southwest Wyoming, Colorado and Utah is the Green river formation, where some of the world’s best specimens of fossil fish are found. The Green river formation as composed of three lakes, Lake Uinta, Lake Gossiute and Fossil lake. The Fossils found are between 440 - 60 million years old and are in excellent preservation

Fossil of a fish embedded in a light-colored stone slab.
Fossil of a small fish embedded in a rock with a dark background.
Fossilized fish embedded in a rock.
Fossilized fish embedded in a gray stone slab.