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LOT 2510
Polished Fossil Ammonite Plate
JURASSIC PERIOD, CIRCA 199-145 MILLION YEARS B.P.
9 1/2 in. (781 grams, 240 mm).
A circular composite plate of overlapping Cleoniceras sp. ammonites. [No Reserve]
ProvenanceFrom a 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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Insects in Polished Amber
Oligocene Period, circa 45 million years B.P.Sold for (Inc. bp): £124
A flat-section piece of polished amber with insect and other inclusions. 4.4 grams, 42 mm
From a Lincolnshire, UK, collection. -
Green River Fossil Knightia Fish Group
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £26
Comprising three rounded matrices, two with a single Knightia alta specimen and one with a pair of fish. 188 grams total, 73-98 mm
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. -
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Extinct Fossil Shark and Other Tooth Collection
Cretaceous-Eocene Period, 70-50 million years B.P.Sold for (Inc. bp): £286
Comprising specimens of different sizes, including examples retaining some or most of the root, enamel and/or serration. 940 grams total, 3-31 mm
Acquired 1990s-early 2000s. East Anglian private collection.
