Sold2015Natural History - Fossil FishEocene Period, 58-36 million years BP. A fossil Knightia alta fish in matrix from Wyoming (Green River Formation), USA. 216 grams, 15cm (5 3/4"). Property of a Lincolnshire, UK, gentleman; acquired onSee Sold Price
Sold2018Natural History - Knightia Fossil FishA large fossil Knightia alta fish in matrix slab showing fine detail. 815 grams, 22.5cm (9"). From the Pradi Collection, Boston, USA; acquired during the 1980s; from the Green River Formation, WyomingSee Sold Price
Sold2023Natural History - Knightia Fossil FishEocene Period, 56-33 million years B.P. A Knightia alta fossil fish in matrix. 277 grams, 13 x 9.5 cm (5 1/8 x 3 3/4 in.). From Wyoming, Green River Formation, U.S.A.Acquired during the 1980s.From theSee Sold Price
Sold2018Natural History - Knightia Fossil Fish GroupEocene Period, 56-33 million years BP. Two Knightia alta fossil fish in a matrix slab. 1.6 kg, 29.5cm (11 1/2"). From the Pradi Collection, Boston, USA; acquired during the 1980s; from the Green RiverSee Sold Price
Sold2019Natural History Knightia Alta Fossil FishEocene Period, 56-33 million years BP. A Knightia alta sp. fossil fish on a rectangular stone matrix, with remains of a tail of another fish above. 404 grams, 16cm (6 1/4"). From the property of a LonSee Sold Price
Sold2015Natural History - Knightia Fossil Fish in MatrixEocene Period, 58-36 million years BP. A sedimentary matrix with a Knightia alta fossil fish from Wyoming (Green River Formation), USA. 2.2 kg, 31cm (12 1/4"). Property of a Lincolnshire, UK, gentlemaSee Sold Price
Sold2018Natural History - Fossil Fish GroupEocene Period, 58-36 million years BP. The group comprises a Knightia alta (upper) and a Diplomystus sp. (lower) fossil fish, on the matrix plaque. 612 grams, 22.5cm (8 3/4"). From the Pradi CollectioSee Sold Price
Sold2023Natural History - Large Multi Fossil Fish PlateEocene Period, circa 56-33 million years B.P. The large sandstone matrix with five Knightia alta specimens. 8.25 kg, 50.5 x 38 cm (19 7/8 x 15 in.). From a Lincolnshire, UK, collection. In southwest WSee Sold Price
Sold2023Natural History - Knightia Fossil FishEocene Period, circa 56-33 million years B.P. Knightia alta specimen on a rectangular matrix. 200 grams, 11.7 cm (4 5/8 in.). From Wyoming (Green River Formation), USA. Acquired during 1980s. From theSee Sold Price
Sold2017Natural History - Fossil Knightia alta FishEocene Period, 58-36 million years BP. A Knightia alta fossil fish from the Eocene period of Wyoming (Green River Formation), USA. 346 grams, 17.5cm (7"). From the Pradi Collection, Boston, USA; acquiSee Sold Price
Sold2015Natural History - Knightia Fossil Fish in MatrixEocene Period, 58-36 million years BP. A matrix with complete fossil fish Knightia eocaena and a second partial from Warfield's Quarry, Kemmerer, Green River Formation, Wyoming, U.S.A. 688 grams, 20cmSee Sold Price
Sold2015Natural History - Knightia Fossil Fish in MatrixEocene Period, 58-36 million years BP. A matrix with a complete fossil fish Knightia eocaena from Warfield's Quarry, Kemmerer, Green River Formation, Wyoming, U.S.A. 1.2 kg, 22.5cm (8 3/4"). PropertySee Sold Price
Sold2023Natural History - Mioplosus Fossil Fish in MatrixEocene Period, 56-33 million years B.P. A rectangular sedimentary matrix displaying a Mioplosus sp. fossil fish. 937 grams, 17.8 x 13 cm (7 x 5 1/8 in.). Ex Lincolnshire, UK, collection. In southwestSee Sold Price
Sold2024Natural History - Diplomystus Fossil Fish on MatrixEocene Period, circa 55 million years B.P. A rectangular matrix with a Diplomystus sp. specimen. 1.07 kg, 19.5 x 19.5 cm (7 3/4 x 7 3/4 in.). From a Lincolnshire, UK, collection. Property of a CambridSee Sold Price
Sold2016Natural History - Fossil Diplomystus Fish in MatrixEocene Period, 58-36 million years BP. A fossil Diplomystus fish from the Green River Formation, Lincoln County, Wyoming, USA. 559 grams, 23cm (9"). From the Pradi Collection, Boston, USA acquired durSee Sold Price
Sold2023Natural History - Fossil Fish and Lobster in MatrixCretaceous Period, 145-65 million years B.P. Possibly Pseudostacus hakeliensis, together with a fossil fish, possibly Rhinobatos sp., both showing some good detail. 4.5 kg, 41 cm (16 1/8 in.). From LeSee Sold Price
Sold2021Fossil Knightia Alta FishEocene Period, 53-33 million years BP. A group of three fossil Knightia alta fishes on a rectangular matrix slab, from the Green River Formation. 344 grams, 15.3cm (6"). From the Pradi Collection, BosSee Sold Price
Sold2016Framed Knightia Alta Fossil Fish in MatrixAncient Framed Knightia Alta Fossil Fish in Matrix Dimensions: 18"L x 15"W x 1.5"D* Weight: 8 lbs* * (estimate/approximately)See Sold Price
Sold2022Knightia Fossil FishEocene Period, 56-33 million years B.P. A pair of Knightia alta fossil fish in matrix. 374 grams, 15.4 x 10.3 cm (6 x 4 in.). From Wyoming, Green River Formation, U.S.A. Acquired during the 1980s. FroSee Sold Price
Sold2022Knightia Fossil FishEocene Period, 58-36 million years B.P. A Knightia alta fossil fish in a matrix. 84 grams, 14 cm (5 1/2 in.). Green River region, Wyoming, USA. Acquired 1980s. Pradi collection, Boston, USA. SeasonallSee Sold Price
Sold2022Knightia Fossil FishEocene Period, 58-36 million years B.P. A Knightia alta fossil fish in a matrix. 313 grams, 17 cm (6 1/2 in.). Green River region, Wyoming, USA. Acquired 1980s. Pradi collection, Boston, USA. SeasonalSee Sold Price
Sold2022Knightia Fossil FishEocene Period, 58-36 million years B.P. A Knightia alta fossil fish in a matrix. 106 grams, 15 cm (6 in.). Green River region, Wyoming, USA. Acquired 1980s. Pradi collection, Boston, USA. Seasonally,See Sold Price
Sold2021Knightia Alta Fossil FishEocene Period, 56-33 million years BP. A group of five Knightia alta fossil fish, on a matrix. 440 grams, 14.5cm (5 3/4"). From the Pradi collection, Boston, USA; acquired during 1980s; from the GreenSee Sold Price
Sold2021Knightia Alta Fossil Fish GroupEocene Period, 56-33 million years BP. A group of two Knightia alta fossil fish on a rectangular matrix. 859 grams, 19cm (7 1/2"). From the Pradi collection, Boston, USA; acquired during 1980s; from tSee Sold Price
3 days LeftEasterly Auction CompanyFish, Fossil, Rock, Natural, Decor, Collectible, Specimen, Green River Formation,$25(1 bid)
3 days LeftEasterly Auction CompanyFish, Fossil, Rock, Natural, Decor, Collectible, Unprepped, Green River Formation,$20
3 days LeftEasterly Auction CompanyFish, Fossil, Rock, Natural, Decor, Collectible, Specimen, Green River Formation,$20
3 days LeftEasterly Auction CompanyFish, Fossil, Rock, Natural, Decor, Collectible, Unprepped, Green River Formation,$40
3 days LeftEasterly Auction CompanyFish, Fossil, Rock, Natural, Decor, Collectible, Specimen, Green River Formation,$45
3 days LeftEasterly Auction CompanyFish, Fossil, Rock, Natural, Decor, Collectible, Unprepped, Green River Formation,$45
3 days LeftEasterly Auction CompanyFish, Fossil, Rock, Natural, Decor, Collectible, Unprepped, Green River Formation,$120
3 days LeftEasterly Auction CompanyFish, Fossil, Rock, Natural, Decor, Collectible, Unprepped, Green River Formation,$25(1 bid)
3 days LeftEasterly Auction CompanyFish, Fossil, Rock, Natural, Decor, Collectible, Unprepped, Green River Formation,$20
3 days LeftEasterly Auction CompanyFish, Fossil, Rock, Natural, Decor, Collectible, Specimen, Green River Formation,$30
5 days LeftTrillium Antique Prints & Rare BooksBuffon - Pair of Engravings: Celestial or Zodiac Band above the Earth & God with Clouds and Wind$50