Diplomystus Fossil Fish – Naturally Untreated, Green River Formation, Eocene, Wyoming, USA

Description

This listing features an exceptional naturally untreated Diplomystus fossil fish from the world-famous Green River Formation, Warfield Springs, Wyoming, USA. Dating back to the Eocene Period (~50 million years ago), this exquisitely preserved specimen is a stunning representation of one of the most recognisable prehistoric fish species found in this remarkable fossil deposit.

Diplomystus dentatus is an extinct species of herring-like fish, a relative of modern-day freshwater fish. It was a surface-dwelling predator, thriving in the ancient subtropical lakes that once covered what is now Wyoming. This species is notable for its distinctive upturned mouth, which allowed it to feed on smaller fish, such as Knightia, another well-known Green River Formation fossil.

Fossil Information:

• Species: Diplomystus dentatus
• Fossil Type: Naturally untreated fossil fish
• Geological Formation: Green River Formation
• Age: Eocene (~50 million years ago)
• Location: Warfield Springs, Wyoming, USA
• Size: See scale reference in photos
• Preservation: Well-preserved skeletal structure and fine details

Key Features:

✔ Genuine naturally untreated Diplomystus fossil

✔ Exceptional detail showcasing delicate bone structure and scales

✔ One of the best-preserved fish fossils from the Green River Formation

✔ A window into the Eocene aquatic ecosystem

Authenticity & Certification:

All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity. The specimen shown in the photos is the exact fossil you will receive.

About Diplomystus & the Green River Formation:

Diplomystus dentatus is one of the most famous fish fossils from the Green River Formation, which contains some of the world’s best-preserved Eocene fossils. The formation represents an ancient lake system that once flourished in what is now Wyoming, providing a snapshot of prehistoric aquatic life from 50 million years ago.

The fine-grained limestone of the Green River Formation allowed for exceptional fossil preservation, capturing delicate details like scales, fins, and even stomach contents in some specimens. Diplomystus fossils are highly sought after by collectors, researchers, and enthusiasts alike.

Why Buy From Us?

This Diplomystus fossil comes from the Alice Purnell Collection, one of the largest and most respected fossil collections in the world. We specialise in high-quality, museum-grade fossils, ensuring this specimen is an excellent addition to any collection, educational display, or investment in prehistoric history.

A stunning piece of natural history—add a genuine Eocene-era Diplomystus fossil to your collection today!