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LOT 3280
North American Knightia Fossil Fish
EOCENE PERIOD, 58-36 MILLION YEARS B.P.
3 5/8 in. (57 grams, 92 mm).
Oval matrix with a Knightia alta specimen. [No Reserve]
ProvenanceFrom Green River formation, Wyoming, USA.
From a Lincolnshire, UK, collection.
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 Uinta, 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 period. 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 3280
North American Knightia Fossil Fish
Estimate £30 - 40€35 - 46 (for guidance only)$41 - 54 (for guidance only)
Opening Bid
£5 (EUR 6; USD 7) +BP*
-
Polished Malachite Mineral Display Specimen
Estimate: £70 - 90 (+bp*)
Bids: 2 | Current Bid: £15
Irregular block of malachite polished to a rounded shape with colour variations enhanced. 830 grams, 13.2 cm
From Zaire. Property of a Bristol, UK, gentleman collector. -
Carved and Polished Nephrite Jade Galloping Horse Statue
Estimate: £80 - 100 (+bp*)
Bids: 1 | Current Bid: £5
Modelled in the round in a galloping stance with its mane and tail flowing in the wind, dyed. 72 grams, 10.5 cm
From the private collection of a Canadian gentleman living in Essex, UK, formed between the 1920s-circa 1990. Property of an Essex lady until the late 1990s; thence by descent. From the private collection of an Essex gentleman since the late 1990s. -
Very Large Mosasaur 'Marine Dinosaur' Fossil Lower Jaw
Cretaceous Period, circa 145-65 million years B.P.Estimate: £1,000 - 1,400 (+bp*)
Opening Bid: £500
Large assembled section of a jaw with ten large teeth displaying dark brown patina, set on a sandstone matrix. 9.37 kg, 63 cm
From a Cambridgeshire, UK, collection.
The Mosasaur is an extinct, large marine reptile with an elongated body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish.
