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LOT 2375
Natural History - Large British Pleuroceras Fossil Ammonite Multi Display
JURASSIC PERIOD, CIRCA 180-178 MILLION YEARS B.P.
6 3/4 in. (2.4 kg, 17 cm).
Showing specimens of Pleuroceras Paucicostatum fossil ammonites in a matrix, together with other inclusions; accompanied by a display stand.
ProvenanceFrom Hawsker, North Yorkshire, UK.
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 2375
Natural History - Large British Pleuroceras Fossil Ammonite Multi Display
Sold for (Inc. bp): £117
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Natural History - Fossil Mesacristata Trilobite
Devonian Period, 417-354 million years B.P.Sold for (Inc. bp): £39
On a matrix, Hollardops mesacristata. 307 grams, 84 mm
From the Atlas Mountains, Hamar Laghdad Formation, Pragian, (Alnif), Morocco. From an old Oxfordshire, UK, fossil and mineral collection. -
Natural History - Large British Asteroceras Fossil Ammonite
Jurassic Period, circa 202-201 million years B.P.Estimate: £1,500 - 2,000 (+bp*)
Opening Bid: £278
An Asteroceras sp. polished fossil ammonite displayed in a free-standing matrix; from the Frodingham Ironstone Member. 3.5 kg, 22 cm wide
From the exhausted Coningsby Quarry, Scunthorpe, Lincolnshire, UK. -
Natural History - Knightia Fossil Fish Mortality Plate
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £65
The round matrix displaying three Knightia alta fossil fish with faint remains of another. 168 grams, 13.6 cm
Ex 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.
