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LOT 2456
Natural History - Knightia Fossil Fish
EOCENE PERIOD, CIRCA 58 MILLION YEARS B.P.
5 1/4 in. (300 grams, 13.4 cm).
Knightia alta specimen on a rectangular matrix. [No Reserve]
ProvenanceFrom Wyoming (Green River Formation), USA.
Acquired during 1980s.
From the Pradi Collection, Boston, USA.
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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Natural History - Mosasaur Jaw Section
Cretaceous Period, circa 145-65 million years B.P.Sold for (Inc. bp): £104
From the lower jaw, displaying two teeth from Prognathodon sp.; repaired. 89 grams, 87 mm
From the phosphate mine region, Khouribga, Morocco, North Africa. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection.
The Mosasaur is an extinct, large marine reptile dinosaur with a snake-like 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. -
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Natural History - Ruby in Zoisite Specimen Group [100]
Sold for (Inc. bp): £13
Comprising variously sized irregular chunks. 1.26 kg total, 21-40 mm
From Tanzania. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
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Natural History - Insect in Polished Baltic Amber
Oligocene Period, circa 45 million years B.P.Sold for (Inc. bp): £39
Polished to highlight the intact fly inclusion. 0.26 grams, 13 mm
Property of the vendor's father, thence by descent. From the private collection of a New York, USA gentleman.
