Sold2016D.C. HADDERHAM FOSSIL FISH SPECIMEN, KNIGHTIA ALTA,D.C. HADDERHAM FOSSIL FISH SPECIMEN, KNIGHTIA ALTA, EOCENE EPOCH. 15 1/4 X 10 3/8"See 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
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
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
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
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
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
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
Sold2022Knightia Fossil FishEocene Period, 58-36 million years B.P. A Knightia alta fossil fish in a rectangular matrix. 315 grams, 12.8 cm (5 in.). Green River region, Wyoming, USA. Acquired 1980s. Pradi collection, Boston, USASee 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
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
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
Sold2022Knightia Fossil FishEocene Period, 58-36 million years B.P. A Knightia alta fossil fish in a rectangular matrix. 316 grams, 13 cm (5 1/4 in.). Green River region, Wyoming, USA. Acquired 1980s. Pradi collection, Boston, USee 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 rectangular matrix. 217 grams, 11 cm (4 1/3 in.). Green River region, Wyoming, USA. Acquired 1980s. Pradi collection, Boston, USee 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
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
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
Sold2021Fossil Knightia Alta FishesEocene Period, 53-33 million years BP. A group of four Knightia alta fish on a rectangular matrix slab, from the Green River Formation. 483 grams, 15cm (6"). From the Pradi Collection, Boston, USA; acSee 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
Sold2023Fish, Fossil, Rock, Natural, Decor, Collectible, Specimen, UnpreppedFossil Fish Unprepped 2.5 Specimen (2 Knightia .5 Diplomystus)See 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
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 - 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
May 19Heartland Artifact Auctions IncKnightia Fish Fossils, found in the Green River Formation, Kemmerer Wyoming$10(1 bid)
May 12Neo FineArts IncRare Natural Fossilized Jurassic Ammonite Fossil Specimen with Small Leather Bag$40