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Diplomystus Fossil Fish – Green River Formation, Eocene – Kemmerer, Wyoming, USA
Diplomystus Fossil Fish – Green River Formation, Eocene – Kemmerer, Wyoming, USA - Image 2

Diplomystus Fossil Fish – Green River Formation, Eocene – Kemmerer, Wyoming, USA

£60.00

This listing features a Diplomystus fossil fish, a stunning and well-preserved specimen from the Green River Formation of Kemmerer, Wyoming, USA. This species thrived during the Eocene Period (~53–48 million years ago) and is an iconic fossil from one of the world’s most famous fossil sites.

Fossil Information:

  • Species: Diplomystus dentatus
  • Fossil Type: Naturally untreated complete fish fossil
  • Geological Period: Eocene (~53–48 million years ago)
  • Formation: Green River Formation
  • Location: Kemmerer, Wyoming, USA
  • Size: See scale reference in photos
  • Preservation: Fine anatomical detail with visible scales, fins, and body structure

Key Features:

✔ 100% genuine specimen – not enhanced or artificially treated

✔ Incredible detail showcasing delicate fin structure and bone preservation

✔ One of the most famous fossil fish species from the Eocene

✔ A perfect display piece for collectors, educators, and museums

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 & Its Significance:

Diplomystus dentatus is an extinct freshwater fish related to modern herring and sardines. These fish thrived in the ancient Fossil Lake, a prehistoric body of water within what is now Wyoming, USA. Fossils from this region are renowned for their exceptional preservation, capturing intricate details of ancient fish species.

This fossil Diplomystus provides a fascinating look at early Eocene ecosystems, preserved in the Green River Formation, one of the world’s most significant fossil deposits. It is commonly found alongside other fossilized fish species, including Knightia and Mioplosus, making it an essential specimen for fossil enthusiasts and researchers.

Why Buy From Us?

This Diplomystus fossil is part of the Alice Purnell Collection, one of the largest and most respected fossil collections in the world. We specialise in high-quality, authentic fossils, ensuring this piece is ideal for museum displays, private collections, or educational study.

A stunning Eocene fish fossil—own a piece of prehistoric aquatic history today!

(Actual as seen)

Out of stock

SKU: AF0390 Category:

Description

This listing features a Diplomystus fossil fish, a stunning and well-preserved specimen from the Green River Formation of Kemmerer, Wyoming, USA. This species thrived during the Eocene Period (~53–48 million years ago) and is an iconic fossil from one of the world’s most famous fossil sites.

Fossil Information:

  • Species: Diplomystus dentatus
  • Fossil Type: Naturally untreated complete fish fossil
  • Geological Period: Eocene (~53–48 million years ago)
  • Formation: Green River Formation
  • Location: Kemmerer, Wyoming, USA
  • Size: See scale reference in photos
  • Preservation: Fine anatomical detail with visible scales, fins, and body structure

Key Features:

✔ 100% genuine specimen – not enhanced or artificially treated

✔ Incredible detail showcasing delicate fin structure and bone preservation

✔ One of the most famous fossil fish species from the Eocene

✔ A perfect display piece for collectors, educators, and museums

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 & Its Significance:

Diplomystus dentatus is an extinct freshwater fish related to modern herring and sardines. These fish thrived in the ancient Fossil Lake, a prehistoric body of water within what is now Wyoming, USA. Fossils from this region are renowned for their exceptional preservation, capturing intricate details of ancient fish species.

This fossil Diplomystus provides a fascinating look at early Eocene ecosystems, preserved in the Green River Formation, one of the world’s most significant fossil deposits. It is commonly found alongside other fossilized fish species, including Knightia and Mioplosus, making it an essential specimen for fossil enthusiasts and researchers.

Why Buy From Us?

This Diplomystus fossil is part of the Alice Purnell Collection, one of the largest and most respected fossil collections in the world. We specialise in high-quality, authentic fossils, ensuring this piece is ideal for museum displays, private collections, or educational study.

A stunning Eocene fish fossil—own a piece of prehistoric aquatic history today!

Additional information

Era

Eocene
Origin

USA

Eocene Information

The Eocene Period (56–33.9 million years ago) was a time of warm global temperatures and the rapid evolution of mammals following the extinction of the dinosaurs. The climate was hot and humid, with lush rainforests covering much of the planet, even near the poles. Mammals diversified into new ecological roles, with early primates, whales (like Basilosaurus), large herbivores, and carnivores emerging. Birds and reptiles also thrived, and the first grasses began spreading, setting the stage for later grassland ecosystems. By the late Eocene, the Earth’s climate cooled significantly, leading to the formation of the first Antarctic ice sheets and the eventual transition to the drier, cooler Oligocene Period.

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