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LOT 2386
Natural History - Polished Fossil Orthoceras Book Ends
UPPER DEVONIAN PERIOD, CIRCA 370 MILLION YEARS B.P.
4 3/4 in. (1.9 kg total, 12.1 cm high).
Comprising a pair of polished fossiliferous matrices set with a raised Orthoceras sp. ammonite. [2, No Reserve]
ProvenanceFrom the Atlas Mountains, Morocco, North Africa.
Ex Cambridgeshire, UK, collection.
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AUCTIONS:
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Natural History - British Asteroceras Fossil Ammonite Multi Display
Jurassic Period, circa 202-201 million years B.P.Sold for (Inc. bp): £416
Presenting a cluster of natural, unpolished Asteroceras sp. fossil ammonites in a matrix; from the Frodingham Ironstone Member. 4.6 kg, 29 cm
From the exhausted Coningsby Quarry, Scunthorpe, Lincolnshire, UK. -
Natural History - Large NWA 15250 L5 Chondrite Meteorite Slice in Case
Found 2022 A.D.Sold for (Inc. bp): £208
The cut and polished slice held in a custom-made collector's display box. 51 grams total, 84 mm wide including case
From the Sahara Desert, North Africa. Property of a Sussex, UK, teacher. Accompanied by a specimen identification card from Adrian Contreras Gomez.
Chondrites are the oldest materials in the solar system with an estimated age of formation of 4.55 billion years. -
Natural History - Knightia Fossil Fish Plate
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £104
The rectangular matrix containing four Knightia alta sp. fish. 955 grams, 24.2 cm
From the Green River Formation, Wyoming, USA. 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.
