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LOT 2446
Natural History - Knightia Fossil Fish Group
EOCENE PERIOD, 56-33 MILLION YEARS B.P.
3 1/2 - 4 1/8 in. (216 grams total, 8.8-10.4 cm).
Comprising three matrices, two with a pair of Knightia alta fossil fish and the third matrix with three specimens. [3, No Reserve]
ProvenanceEx Lincolnshire, UK, collection.
CONDITIONTimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
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Natural History - Exceptional British Phylloceras Fossil Ammonite
Lower Jurassic, Toarcian Stage, circa 200-190 million years B.P.Sold for (Inc. bp): £650
Phylloceras heterophyllum displayed in a freestanding matrix, displaying sutures. 5.5 kg, 20 cm
From the Holderness Coast, Yorkshire, UK. -
Natural History - Knightia Fossil Fish
Eocene Period, circa 58 million years B.P.Sold for (Inc. bp): £78
The rectangular matrix containing a Knightia alta fish. 233 grams, 14.6 cm
From Wyoming (Green River Formation), USA. Acquired during 1980s. From the Pradi Collection, Boston, U.S.A.
Seasonally some 58 million years ago, in the Green River region of Wyoming, torrential rains fell in the mountains. They flowed down the mountain sides, forming wide shallow lakes in the valley below. During the dry season, these lakes would dry up due to evaporation (as happens in certain parts of Africa today). Millions of fish died in this short period of time. This climatic cycle happened over a 20-thousand-year period. Layer upon layer of mud entombed all these fish. At a much later date, volcanic activity uplifted this area to expose the fossils. -
Natural History - Polished Fossil Orthoceras Book Ends
Upper Devonian Period, circa 370 million years B.P.Sold for (Inc. bp): £65
Comprising a pair of polished fossiliferous matrices set with a raised Orthoceras sp. ammonite. 1.9 kg total, 12.1 cm high
From the Atlas Mountains, Morocco, North Africa. Ex Cambridgeshire, UK, collection.
