Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.

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RARE: 5.5" Diplomystus Fossil Fish – Green River Formation, Eocene – Wyoming, USA
RARE: 5.5" Diplomystus Fossil Fish – Green River Formation, Eocene – Wyoming, USA - Image 2
RARE: 5.5" Diplomystus Fossil Fish – Green River Formation, Eocene – Wyoming, USA - Image 3

RARE: 5.5″ Diplomystus Fossil Fish – Green River Formation, Eocene – Wyoming, USA

£24.00

This is a stunningly preserved 5.5″ Diplomystus fossil fish, originating from the famous Green River Formation, Wyoming, USA. Dating back to the Eocene epoch (~52 million years ago), this specimen offers an exceptional glimpse into the prehistoric freshwater ecosystems of North America.

Species: Diplomystus dentatus

Age: Eocene (~52 million years old)

Location: Green River Formation, Wyoming, USA

Size: 5.5 inches (see scale in photos)

Key Features:

Beautiful, natural fossilization with detailed bone structure

Well-preserved scales, fins, and vertebrae

Iconic specimen from one of the most famous fossil sites in the world

A must-have for fossil collectors and natural history enthusiasts

From the Alice Purnell Collection – one of the world’s largest ammonite collections

100% genuine fossil with no restoration

Scientific & Collectible Value:

Diplomystus dentatus is an extinct genus of herring-like fish that thrived in ancient freshwater lakes of the Eocene epoch. These fish were predatory, feeding on smaller fish, as evidenced by fossils showing them mid-swallow. Fossils from the Green River Formation are highly sought-after due to their extraordinary preservation, caused by fine-grained limestone sediments that captured fine details of soft tissues and skeletons.

What You Receive:

  • The exact fossil shown in the photos
  • A Certificate of Authenticity verifying its legitimacy
  • Secure, protective packaging for safe worldwide shipping

Why Buy From Us?

We specialize in high-quality, genuine fossils, carefully selected for scientific significance, rarity, and beauty. Every specimen is ethically sourced and professionally prepared, ensuring premium quality for collectors, museums, and enthusiasts.

A Unique Gift for Collectors & Fossil Enthusiasts!

This stunning fossil fish makes an excellent addition to any fossil collection, a striking display piece, or an educational artifact for paleontology lovers.

One-of-a-Kind Specimen – Don’t Miss Out!

Once sold, this fossil cannot be replaced!

Buy Now – Fast & Secure Shipping Worldwide!

(Actual as seen)

Out of stock

SKU: AF0256 Category:

Description

This is a stunningly preserved 5.5″ Diplomystus fossil fish, originating from the famous Green River Formation, Wyoming, USA. Dating back to the Eocene epoch (~52 million years ago), this specimen offers an exceptional glimpse into the prehistoric freshwater ecosystems of North America.

Species: Diplomystus dentatus

Age: Eocene (~52 million years old)

Location: Green River Formation, Wyoming, USA

Size: 5.5 inches (see scale in photos)

Key Features:

Beautiful, natural fossilization with detailed bone structure

Well-preserved scales, fins, and vertebrae

Iconic specimen from one of the most famous fossil sites in the world

A must-have for fossil collectors and natural history enthusiasts

From the Alice Purnell Collection – one of the world’s largest ammonite collections

100% genuine fossil with no restoration

Scientific & Collectible Value:

Diplomystus dentatus is an extinct genus of herring-like fish that thrived in ancient freshwater lakes of the Eocene epoch. These fish were predatory, feeding on smaller fish, as evidenced by fossils showing them mid-swallow. Fossils from the Green River Formation are highly sought-after due to their extraordinary preservation, caused by fine-grained limestone sediments that captured fine details of soft tissues and skeletons.

What You Receive:

  • The exact fossil shown in the photos
  • A Certificate of Authenticity verifying its legitimacy
  • Secure, protective packaging for safe worldwide shipping

Why Buy From Us?

We specialize in high-quality, genuine fossils, carefully selected for scientific significance, rarity, and beauty. Every specimen is ethically sourced and professionally prepared, ensuring premium quality for collectors, museums, and enthusiasts.

A Unique Gift for Collectors & Fossil Enthusiasts!

This stunning fossil fish makes an excellent addition to any fossil collection, a striking display piece, or an educational artifact for paleontology lovers.

One-of-a-Kind Specimen – Don’t Miss Out!

Once sold, this fossil cannot be replaced!

Buy Now – Fast & Secure Shipping Worldwide!

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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