4" Diplomystus Dentatus Fossil Fish Green River FM WY Eocene Age COA, Stand
Location: Kemmerer, Wyoming
Weight: 12.9 Ounces
Dimensions: 5.3 Inches Long, 4.8 Inches Wide, 0.6 Inches Thick (Plate)
Fish Dimensions: 4 Inches Long, 1.6 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.
The morphology of Diplomystus Dentatus, characterized by its upturned mouth, is indicative of a surface-feeding fish. This genus, part of the herring family, likely preyed on small surface fish such as Knightia, supported by numerous fossils showing Knightia remains in their stomachs or mouths. Around 50 million years ago, Fossil Lake covered what is now southwest Wyoming, spanning up to 930 square miles, of which roughly 500 square miles of sediment persist. The central 230 square miles of the ancient lakebed contain exceptionally fossil-rich sediments along with geological features like deltas, beaches, and springs. Unique chemical conditions in the lake inhibited decay and scavenging, allowing for the formation of laminated limestones with the world's highest concentration of fossil fish. These deposits provide the most comprehensive Paleogene freshwater lake ecosystem record, preserving a full aquatic community including cyanobacteria, plants, insects, crustaceans, amphibians, reptiles, birds, and mammals such as the earliest pantolestid. The surrounding subtropical terrestrial environment is also captured through rare fossils of horses, snakes, lizards, bats, birds, insectivores, carnivores, and over 325 plant species.
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.
