Description
This listing features a rare and well-preserved fossil of a Mayfly Larvae (Ephemeropsis trisetalis) from the famous Jianshangou Beds of the Yixian Formation, dating back to the Early Cretaceous (~125 million years ago). This species provides a fascinating glimpse into the evolution of aquatic insects during the time of the dinosaurs.
Fossil Information:
- Species: Ephemeropsis trisetalis (Mayfly Larvae)
- Geological Age: Early Cretaceous (~125 million years ago)
- Formation: Yixian Formation, Jianshangou Beds
- Location: Beipiao, Liaoning Province, China
- Preservation: Exceptional – fine details of body and limbs visible
- Size: See listing photos for precise measurements
Key Features:
✔ RARE – Fossilized Mayfly Larvae from the Early Cretaceous
✔ Fine preservation, showing intricate body details
✔ From the world-famous Yixian Formation – home to exceptional fossils
✔ Ideal for collectors, researchers, and fossil enthusiasts
✔ Comes with a Certificate of Authenticity
Scientific & Historical Significance:
Ephemeropsis trisetalis is a species of extinct mayfly that lived in freshwater environments during the Early Cretaceous. Mayflies are some of the oldest winged insects, with a lineage stretching back over 300 million years. This particular specimen comes from the Yixian Formation, a globally recognized fossil site known for its extraordinary preservation of prehistoric life, including insects, fish, plants, and even dinosaurs.
Authenticity & Certification:
All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity. The exact fossil shown in the listing photos is the one you will receive.
Why Buy From Us?
This fossil originates from the Alice Purnell Collection, one of the largest and most prestigious fossil collections in the world. We specialize in museum-quality fossils, carefully sourced to ensure authenticity, rarity, and scientific value.
A stunning piece of prehistoric history – perfect for any fossil collection!






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