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LOT 2243
Natural History - Knightia Fossil Fish Group
EOCENE PERIOD, CIRCA 56-33 MILLION YEARS B.P.
2 7/8 - 3 5/8 in. (123 grams total, 73-93 mm).
Comprising three matrices with Knightia eocaena specimens. [3, No Reserve]
ProvenanceFrom Lindgren Quarry, Wyoming (Green River Formation), 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 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 - Polished Fossil Goniatite Group
Devonian Period, circa 417-354 million years B.PSold for (Inc. bp): £13
Comprising three polished, dome-shaped masses, each with a central Goniatite sp. specimen. 368 grams total, 70-75 mm
From the Atlas Mountains of Morocco, North Africa. From a Cambridgeshire, UK, collection. -
Natural History - Large Ammonite Display
Lower Jurassic Period, Pliensbachian Stage, circa 191-183 million years B.P.Sold for (Inc. bp): £72
A Green Ammonite Bed nodule with Androgynoceras sp. specimen. 4.7 kg, 23 cm
From Charmouth, UK. From a Lincolnshire, UK, collection. -
Natural History - Insects in Baltic Amber
Oligocene Period, circa 50 million years B.P.Sold for (Inc. bp): £33
A polished piece of amber containing insect and other inclusions. 2.8 grams, 22 mm
From the Baltic region. Collected between 1930 and 1960. From the collection of the palaeontologist R Gledhill.