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Knightia Fossil Fish – Naturally Untreated, Green River Formation, Eocene, Wyomi

Knightia Fossil Fish – Naturally Untreated, Green River Formation, Eocene, Wyomi

£36.00

This listing features an exceptional naturally untreated Knightia 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 provides an incredible glimpse into the ancient freshwater ecosystems that once flourished in what is now North America.

Knightia eocaena is an extinct herring-like fish that thrived in the vast subtropical lakes of the Eocene. It is one of the most commonly found vertebrate fossils in the world, and specimens like this are highly sought after due to their fine preservation and scientific significance.

Fossil Information:

  • Species: Knightia eocaena
  • 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: Clear skeletal structure, fine detail, and natural preservation

Key Features:

✔ Authentic naturally untreated Knightia fossil

✔ Excellent preservation showcasing delicate bone structure and scales

✔ An iconic fossil species from the famous Green River Formation

✔ Ideal for collectors, educators, and enthusiasts

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 Knightia & the Green River Formation:

Knightia eocaena is one of the most well-known fossil fish species, often found in exceptionally well-preserved fossil beds of the Green River Formation in Wyoming. The formation represents an ancient freshwater lake system, providing remarkable preservation of Eocene flora and fauna.

Knightia was a small schooling fish, similar to modern herring, and served as a key food source for larger predatory fish like Diplomystus, Lepisosteus (gar), and Mioplosus. Its delicate bones, fins, and scales have been beautifully fossilized in fine-grained limestone, making it an excellent display piece and educational specimen.

Why Buy From Us?

This Knightia 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 Knightia fossil to your collection today!

(Actual as seen)

Out of stock

SKU: AF0381 Category:

Description

This listing features an exceptional naturally untreated Knightia 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 provides an incredible glimpse into the ancient freshwater ecosystems that once flourished in what is now North America.

Knightia eocaena is an extinct herring-like fish that thrived in the vast subtropical lakes of the Eocene. It is one of the most commonly found vertebrate fossils in the world, and specimens like this are highly sought after due to their fine preservation and scientific significance.

Fossil Information:

  • Species: Knightia eocaena
  • 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: Clear skeletal structure, fine detail, and natural preservation

Key Features:

✔ Authentic naturally untreated Knightia fossil

✔ Excellent preservation showcasing delicate bone structure and scales

✔ An iconic fossil species from the famous Green River Formation

✔ Ideal for collectors, educators, and enthusiasts

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 Knightia & the Green River Formation:

Knightia eocaena is one of the most well-known fossil fish species, often found in exceptionally well-preserved fossil beds of the Green River Formation in Wyoming. The formation represents an ancient freshwater lake system, providing remarkable preservation of Eocene flora and fauna.

Knightia was a small schooling fish, similar to modern herring, and served as a key food source for larger predatory fish like Diplomystus, Lepisosteus (gar), and Mioplosus. Its delicate bones, fins, and scales have been beautifully fossilized in fine-grained limestone, making it an excellent display piece and educational specimen.

Why Buy From Us?

This Knightia 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 Knightia fossil to your collection 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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