Fossil Fish

Buried Treasure Fossils offers a large selection of top quality of fossil fish for sale. Fossil fish from the Green River Formation (US) include Diplomystus, Knightia, Mioplosus, Phareodus, and Priscacara. The Green River Fm. fossil fish are Eocene age and exhibit incredible preservation. We have Green River Fm. fossil fish specimens from the "split fish layer" and superb specimens from the "18" inch layer. We also have fossil fish from Italy and Morocco. Authenticity guaranteed. Have a look.
- Knightia alta$150.00
A sarce, EXTRA LARGE Knightia alta fish from the 18 Inch layer, Green River Fm., Lincoln Co. Wyoming. The Knightia alta is the second Herring-like fish species from the Eocene age (50 MYA). This is a scarce species has a thicker body. Exceptional preservation and preparation. No repair or restoration. All natural. Authenticity guaranteed. An excellent display piece! Note - This item weighs 3 lbs. An international shipping surcharge may be applied to "Free Shipping". Please inquire for cost.
X450 SIZE: 6-3/8"
Note - Adding 17 Green River Fm. Fossil fish in November 2025 --> Link to Fossil Fish
Learn More - Diplomystus dentatus$145.00
A Top Quality Diplomystus fish from the 18 inch layer, Green River Fm., Lincoln Co. Wyoming. The Diplomystus dentatus is a Herring fish from the Eocene age (50 MYA) in the ancient Lake Gosiute deposit. This piece is from the 18 Inch Layer which is extremely dense and difficult to prepare. It also provides the most detailed, highly preserved fossils. Exceptional preservation and preparation. No repair or restoration. All natural. Authenticity guaranteed. An excellent display piece!
X467 SIZE: 7-3/8" Plate size: 8.5" x 6.5"
Note - Adding 12 Green River Fm. Fossil fish in November 2023 --> Link to Fossil Fish
Learn More - Mioplosus labracoides$145.00
A Top Quality, Mioplosus fish from the 18 inch layer. The Mioplosus labracoides is an extinct Perch-like fish from the Eocene age (50 MYA), Green River Fm., Lincoln Co. Wyoming. A scarce species. This piece is from the 18 Inch Layer which is extremely hard and difficult to prepare. It also provides the most detailed, highly preserved fossils. Exceptional preservation and preparation. No repair. All natural. Authenticity guaranteed. A wonderful display piece!
X491 SIZE: 5-9/16" Plate size: 9" x 6.5"
Note - Added 12 Green River Fm. Fossil fish in November 2023. --> Link to Fossil Fish
Learn More - Knightia eocaena$145.00
An EXTRA LARGE Knightia fish from the 18 Inch layer, Green River Fm., Lincoln Co. Wyoming. The Knightia eocaena is a Herring-like fish from the Eocene age (50 MYA). Exceptional preservation and preparation. No repair or restoration. All natural. Authenticity guaranteed. An excellent display piece! Note - This item weighs 4.5 lbs. An international shipping surcharge may be applied to "Free Shipping". Please inquire for cost.
X455 SIZE: 6-1/2"
Note - Adding 17 Green River Fm. Fossil fish in November 2025 --> Link to Fossil Fish
Learn More - Mioplosus labracoides$135.00
A Top Quality, Mioplosus fish from the 18 inch layer. The Mioplosus labracoides is an extinct Perch-like fish from the Eocene age (50 MYA), Green River Fm., Lincoln Co. Wyoming. A scarce species. This piece is from the 18 Inch Layer which is extremely hard and difficult to prepare. It also provides the most detailed, highly preserved fossils. Exceptional preservation and preparation. No repair. All natural. Authenticity guaranteed. A wonderful display piece!
X492 SIZE: 5-3/8" Plate size: 8" x 6"
Note - Added 12 Green River Fm. Fossil fish in November 2023. --> Link to Fossil Fish
Learn More - Mioplosus labracoides$135.00
A Top Quality, Mioplosus fish from the 18 inch layer. The Mioplosus labracoides is an extinct Perch-like fish from the Eocene age (50 MYA), Green River Fm., Lincoln Co. Wyoming. A scarce species. This piece is from the 18 Inch Layer which is extremely hard and difficult to prepare. It also provides the most detailed, highly preserved fossils. Exceptional preservation and preparation. No repair. All natural. Authenticity guaranteed. A wonderful display piece! Incredible detail!
X494 SIZE: 5-1/2"
Note - Adding 31 Green River Fm. Fossil fish in November 2024 --> Link to Fossil Fish
Learn More - Knightia eocaena - Mortality plate$135.00
A Knightia fish mortality plate with three fish from the Green River Fm., Lincoln Co. Wyoming. This piece is from the 18 Inch Layer which is extremely dense and difficult to prepare. It also provides the most detailed, highly preserved fossils.The Knightia eocaena is a Herring-like fish from the Eocene age (50 MYA). Exceptional preservation and preparation. No repair. All natural. Authenticity guaranteed. An exceptional display piece. Note - This item weighs 3.9 lbs. An international shipping surcharge will be applied to "Free Shipping". Please inquire for cost.
X453 SIZE: 3-1/2" (largest) Plate size: 11" x 9"
Note - Adding 17 Green River Fm. Fossil fish in November 2025 --> Link to Fossil Fish
Learn More - Knightia eocaena$125.00
An EXTRA LARGE, Top Quality Knightia fish from the 18 Inch layer, Green River Fm., Lincoln Co. Wyoming. The Knightia eocaena is a Herring-like fish from the Eocene age (50 MYA). This piece is from the 18 Inch Layer which is extremely dense and difficult to prepare. It also provides the most detailed, highly preserved fossils. Exceptional preservation and preparation. No repair. All natural. Authenticity guaranteed. An excellent display piece. The BEST!
X452 SIZE: 6-1/8"
Note - Adding 27 Green River Fm. Fossil fish in October 2020 --> Link to Fossil Fish
Learn More - Diplomystus dentatus$120.00
A LARGE, Top Quality Diplomystus fish from the 18 Inch layer, Green River Fm., Lincoln Co. Wyoming. The Diplomystus dentatus is a Herring fish from the Eocene age (50 MYA) in the ancient Lake Gosiute deposit. These fossil fish are exceptionally preserved fossils. Excellent preservation and preparation. No repair or restoration. All natural. Authenticity guaranteed. A fantastic display piece!
X465 SIZE: 6-1/4"
Note - Adding 17 Green River Fm. Fossil fish in November 2025 --> Link to Fossil Fish
Learn More - Mioplosus labracoides$120.00
A Top Quality, Mioplosus fish from the 18 inch layer with frame. The Mioplosus labracoides is an extinct Perch-like fish from the Eocene age (50 MYA), Green River Fm., Lincoln Co. Wyoming. A scarce species. This piece is from the 18 Inch Layer which is extremely hard and difficult to prepare. It also provides the most detailed, highly preserved fossils. Exceptional preservation and preparation. No repair. All natural. Authenticity guaranteed. Museum quality specimen
X490 SIZE: 5-3/8"
Note - Added 17 Green River Fm. Fossil fish in November 2025. --> Link to Fossil Fish
Learn More - Diplomystus dentatus$120.00
A LARGE, Top Quality Diplomystus fish from the 18 Inch layer, Green River Fm., Lincoln Co. Wyoming. The Diplomystus dentatus is a Herring fish from the Eocene age (50 MYA) in the ancient Fossil Lake deposit. These fossil fish are exceptionally preserved fossils. Excellent preservation and preparation. No repair or restoration. All natural. Authenticity guaranteed. An excellent display piece!
X475 SIZE: 6-1/2"
Note - Adding 17 Green River Fm. Fossil fish in November 2025 --> Link to Fossil Fish
Learn More - Diplomystus dentatus$115.00
A Top Quality Diplomystus fish from the 18 inch layer, Green River Fm., Lincoln Co. Wyoming. The Diplomystus dentatus is a Herring fish from the Eocene age (50 MYA) in the ancient Lake Gosiute deposit. This piece is from the 18 Inch Layer which is extremely dense and difficult to prepare. It also provides the most detailed, highly preserved fossils. Exceptional preservation and preparation. No repair or restoration. All natural. Authenticity guaranteed. An excellent display piece!
X468 SIZE: 6-5/8" Plate size: 8" x 5"
Note - Adding 12 Green River Fm. Fossil fish in November 2023 --> Link to Fossil Fish
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