3.8" Diplomystus Dentatus Fossil Fish Green River FM WY Eocene Age COA, Stand

Location: Kemmerer, Wyoming

Weight: 8.6 Ounces

Dimensions: 5 Inches Long, 4.7 Inches Wide, 0.3 Inches Thick (Plate)

Fish Dimensions: 3.8 Inches Long, 1.4 Inches Wide

Comes with a Free Stand.

Comes with a Certificate of Authenticity.

The item pictured is the one you will receive.

56 million years old, Eocene age.

Diplomystus Dentatus morphology, including its upturned mouth, is typical of a surface-feeding fish. The genus is herrings that likely fed on small surface-dwelling fish, as Knightia is evidenced by numerous fossils found with Knightia in the stomach or mouth.

Fifty million years ago, ancient Fossil Lake existed in what is now southwest Wyoming. Of its estimated maximum extent of 930 square miles, approximately 500 square miles of sediment remains. The 230 square miles across the center of the ancient lake-bed contain exceptionally fossiliferous sediments and associated geologic features, including deltas, beaches, springs, and rocks from the center and nearshore environments.

Fossil Lake’s extraordinary chemistry stopped decay and scavengers in their tracks, allowing millimeter-thick layers of limestone to build up, capturing one of the richest fossil fish deposits on Earth. These laminated stones hold the fossilized remains of an entire Paleogene freshwater ecosystem—fish, plants, insects, amphibians, reptiles, birds, and mammals—preserved in stunning detail since their discovery in the 1870s. Beyond the water, the surrounding subtropical world is revealed in rare fossils, including ancient horses, snakes, bats, and a dazzling variety of plants, offering a bold glimpse into a lost world teeming with life.

Please be aware of the nature of fossils:

Being buried under the ground for millions of years under tons of pressure tends to be rough. No fossil comes out of the ground whole and perfect. Most fossils have undergone some restoration, while others are altered by man, simply to enhance their presentation in different ways. These are part of the natural beauty of the fossil and are not considered defects.