SKU:S968
Authentic Eocene Marsh Fly Fossil from Green River
Authentic Eocene Marsh Fly Fossil from Green River
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More than 51 million years ago, this tiny Marsh Fly (Plecia pealei) lived among the warm, lush wetlands of the Eocene Epoch. Its journey ended in the calm waters of an ancient lake, where nature began an extraordinary process that would preserve it for millions of years, creating the remarkable fossil you see today.
Specimen Details
✓ Species: Plecia pealei (Marsh Fly)
✓ Age: Eocene (~51 million years old)
✓ Formation: Green River Formation
✓ Location: Kemmerer, Wyoming, USA
✓ Specimen Size: Approximately 51 × 51 × 8 mm
✓ Fly Size: Approximately 14 × 8 mm
✓ Weight: 35 g
✓ Authenticity: 100% Authentic natural fossil
✓ Display: Excellent collector, educational, or gift specimen
Collected from the renowned Green River Formation near Kemmerer, Wyoming, this fossil comes from one of the world's most exceptional fossil deposits. During the Eocene, a chain of tranquil freshwater lakes covered the region. Fine sediment settled continuously to the lake floor, gently burying insects, fish, leaves, and other organisms before they could decay. Over immense spans of time, these sediments hardened into limestone, preserving an astonishing record of ancient life.
The Green River Formation is celebrated by scientists and collectors for revealing an ecosystem that flourished after the extinction of the dinosaurs. Although fossil fish are the formation's most iconic discoveries, insect fossils such as Plecia pealei are significantly less common and provide valuable insight into the diverse insect life that inhabited these ancient forests and wetlands.
Every authentic Marsh Fly fossil is a unique survivor from a vanished world. Whether you're expanding a fossil collection, inspiring curiosity in young explorers, or searching for a meaningful gift, this specimen is a fascinating piece of Earth's natural history that has endured through millions of years.
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Before You Add to Cart ✨
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 🛡️
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 🚚
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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