Rare, 2" Fossil Fish (Amphiplaga) - Green River Formation

Amphiplaga brachyptera are one of the rarer fish in the Green River Formation, making up much less than 1% of the total fish population. It's a small fish and is a member of the "trout-perch" family. Because of its rarity it was almost certainly solitary, not a schooling fish like the more common species found in the lake.

This specimen includes an acrylic display stand.

50 million years ago, in the Eocene these fish thrived in Fossil Lake fed by Uinta and Rocky Mtn. highlands. The anoxic conditions at the bottom of Fossil Lake slowed bacterial decomposition, prevented scavengers from disturbing corpses, and most interestingly, suffocated creatures that ventured into the oxygen-starved aquatic layer. The result is a miraculous exhibition of Eocene biota in a subtropical, aquatic community within sycamore forests teeming with creatures such as freshwater stingrays, dog-sized horses, menacing alligators, early flying bats, and one of the first primates.
Amphiplaga brachyptera
Kemmerer, WY
Green River Formation
2" long on 7.2 x 4.8" rock
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.