Genuine 14" Diplomystus dentatus Fossil Fish – Mounted Wall Display – Green River Formation Eocene USA – Certificate Included


£ 1080.00

Authentic 14" Diplomystus dentatus Fossil Fish – Mounted Wall Display from the
Green River Formation, Wyoming, USA

This stunning 14-inch Diplomystus dentatus fossil fish is a genuine specimen from the world-famous Green River Formation of Wyoming, USA. Mounted on a natural limestone slab and fitted with sturdy hanging chains, it is ready for immediate display as a striking piece of prehistoric natural history wall art.


• All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity
• Scale Rule Squares / Cube = 1cm: Please refer to photo for full sizing
• What you see is exactly what you’ll receive – no stock photos or replicas

Fossil Information


• Species: Diplomystus dentatus
• Fossil Type: Complete fossil fish
• Length: Approx. 14 inches
• Formation: Green River Formation
• Member: Fossil Butte Member
• Layer: Split Fish Layer
• Geological Age: Eocene Epoch (~50 million years ago)
• Location: Kemmerer, Wyoming, USA

Scientific Classification


• Kingdom: Animalia
• Phylum: Chordata
• Class: Actinopterygii (Ray-finned fishes)
• Order: Elopiformes
• Family: Ellimmichthyidae
• Genus: Diplomystus
• Species: D. dentatus

Geological & Environmental Context


• Depositional Environment:
• The Green River Formation represents a series of intermountain lake basins formed during the Eocene. These lakes had anoxic bottom waters and very fine sediments, ideal for the exquisite preservation of soft-bodied and bony structures.
• The Split Fish Layer is known for producing fossil specimens with incredible detail, preserved in laminated micritic limestone.
• Paleoecology & Morphology:
• Diplomystus dentatus was a predatory fish characterized by its upturned mouth and elongated body. It likely fed on smaller fish species like Knightia, which are often found alongside it.
• Notable for its forked tail, ganoid scales, and distinct vertebral column preserved in high detail in fossil specimens.
• Notable Features:
• Exceptionally well-preserved skeleton with fine bone structure
• Beautiful display piece with natural contrasting matrix
• Professionally mounted with metal hardware and chains for secure wall hanging

Why This Fossil Stands Out


• This is a museum-quality piece sourced from a well-documented, classic fossil locality.
• Highly collectible due to its size (14 inches), aesthetic presentation, and scientific importance.
• Green River fossils are celebrated worldwide for their completeness, clarity, and context within ancient lacustrine environments.

What’s Included


• One genuine fossil of Diplomystus dentatus mounted on slab
• Wall-mounting chains pre-installed
• Certificate of Authenticity confirming scientific and locality details
• Secure, tracked shipping with protective packaging

Perfect For


• Natural history collectors
• Interior decorators and enthusiasts of fossil décor
• Educational institutions and museums
• Science lovers and fossil display enthusiasts