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LOT 2504
Natural History - Knightia Fossil Fish Plate
EOCENE PERIOD, CIRCA 56-33 MILLION YEARS B.P.
4 in. (70 grams, 10.5 cm).
A roughly oval matrix with a Knightia alta fossil fish. [No Reserve]
ProvenanceAcquired on the UK art market.
Property of a Essex, UK, collector.
In southwest Wyoming (and parts of Colorado and Utah) in the Green River Formation are found some of the world's most outstanding specimens of fossil fish. The Green River system was composed of three lakes: Lake Ulinta, Lake Gosiute and Fossil Lake. These Eocene lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary time. The climate was much different from the desert-like climate of this area today. Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today. Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time.
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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LOT 2504
Natural History - Knightia Fossil Fish Plate
Sold for (Inc. bp): £46
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Natural History - Historic Mineral Specimen Collection
Sold for (Inc. bp): £13
Comprising: fluorite from Brazil, collection number 116; bornite and quartz on fuchsite from Messini Mine, North Transvaal, South Africa, collection number 194; galena from Brazil, collection number 74; two samples of bornite, chalcosine and covelline from North Transvaal, South Africa, collection number 303; specular hematite from Elba, Italy, collection number 489, with an old Gregory, Bottley & Lloyd label; adamite, collection number 179; wolframite from Cligger Head, Cornwall, England, collection number 347; hematite from Morocco, collection number 138; specular hematite from England, collection number 78. 1.44 kg total, 26-83 mm
Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Each specimen accompanied by an original historic index file card. -
Natural History - Popcorn Quartz Crystal Specimen Group [3]
Sold for (Inc. bp): £26
Comprising three irregular sections with white crystal formations. 612 grams total, 75-92 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Fossil Leaves and Snout Beetle in Matrix
Eocene Period, circa 48 million years B.P.Sold for (Inc. bp): £234
Rectangular sedimentary block with embedded leaves with evidence for damage by weevils feeding on the lakeside vegetation. 702 grams, 13.7 cm
From Green River shales, Wyoming, U.S.A. From a Leicestershire, UK, collection.