SKU:S344

Knightia Fossil Fish from Wyoming Green River Eocene

Name: Knightia Fossil Fish from Wyoming Green River Eocene
Brand: ForeverGems_Tuc26
SKU: S344
Price: 470.00 ZAR
Availability: InStock

Knightia Fossil Fish from Wyoming Green River Eocene

An authentic Knightia eocaena fossil from the Green River Formation, preserving one of the world's most iconic prehistoric freshwater fish.

R470.00

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This authentic Knightia eocaena fossil was preserved approximately 50 million years ago in the calm freshwater lakes of what is now southwestern Wyoming. As the most abundant fish species found in the famous Green River Formation, Knightia offers an extraordinary glimpse into one of Earth's best-preserved prehistoric ecosystems.

Specimen Details

✓ Species: Knightia eocaena
✓ Age: Eocene Epoch (Approximately 50 million years old)
✓ Formation: Green River Formation
✓ Location: Near Kemmerer, Wyoming, USA
✓ Specimen Size: Approximately 119 × 70 × 13 mm
✓ Fish Size: Approximately 68 × 18 mm
✓ Weight: 182 g
✓ Preservation: Natural fossil fish preserved in fine-grained limestone
✓ Authenticity: 100% Authentic prehistoric fossil
✓ Display: Ideal for fossil collections, educational displays, and natural history décor

The Green River Formation is internationally celebrated for producing some of the finest fossil fish ever discovered. During the Eocene Epoch, a chain of peaceful freshwater lakes covered this region, where oxygen-poor conditions at the lake bottom slowed decomposition. Fine limestone sediments gently buried fish, plants, insects, and other organisms, preserving remarkable anatomical detail over millions of years.

Knightia eocaena was a small schooling fish that formed an essential part of the ancient lake ecosystem. It served as prey for larger predatory fish, birds, reptiles, and early mammals, making it one of the most important species for understanding Eocene freshwater life. Today, these fossils are prized by collectors and museums alike for both their beauty and scientific significance.

This specimen displays the distinctive body shape, vertebral column, fin rays, and forked tail that have made Knightia one of the most recognizable fossil fish in the world. Whether displayed in a collection, classroom, office, or home, it is an authentic piece of natural history that has remained hidden within the Earth for around 50 million years.

Before You Add to Cart ✨

Online Only: This exact piece is available online only. Similar pieces may be available in store so please check with us before you visit Forever Gems in Franschhoek. Want to view it in-store? Just ask — we’ll arrange it.

Photos: We shoot for accuracy, but colors may vary slightly by screen or lighting.

Size & Weight: Full details are in the description. Please check before buying.

What You See Is What You Get: The item pictured is the exact piece you’ll receive.

Authenticity Guaranteed 🛡️

Every specimen at Forever Gems is personally hand-selected and verified. We source exclusively from trusted IMCA-registered dealers, artisanal miners, and long-standing partners we meet with annually at the Tucson Gem and Mineral Show.

Any replica or reproduction fossils are always clearly labeled and sold separately.

Lifetime Authenticity Guarantee

We stand behind the authenticity of every fossil we sell. If a fossil purchased from Forever Gems can be scientifically proven not to be authentic, it may be returned at any time for a full refund, provided supporting proof is supplied. This lifetime authenticity guarantee is in addition to our standard 30-day return policy.

Rather than paper certificates, we rely on over 13 years of experience, expert knowledge, and trusted supplier relationships to ensure authenticity and quality.

Shipping & Collection 🚚

We ship nationwide with The Courier Guy and RAM Hand-to-Hand Couriers primarily and worldwide with FedEx. Tracking provided on all orders.

Local pickup: Wellington by appointment, Franschhoek Store Fri–Sun, or Franschhoek Village Market Saturdays (weather permitting).

Own courier: We’ll notify you when ready for collection from Wellington, SA.

International: Shipping options show at checkout. Duties/taxes, if any, are paid by the buyer.

All specimens are securely packaged to arrive safely. Questions? Contact us

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