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LOT 0384
Natural History - Large British Asteroceras Fossil Ammonite
JURASSIC PERIOD, CIRCA 202-201 MILLION YEARS B.P.
8 5/8 in. (3.5 kg, 22 cm wide).
An Asteroceras sp. polished fossil ammonite displayed in a free-standing matrix; from the Frodingham Ironstone Member.
ProvenanceFrom the exhausted Coningsby Quarry, Scunthorpe, Lincolnshire, 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 0384
Natural History - Large British Asteroceras Fossil Ammonite
Estimate £1,500 - 2,000€1,740 - 2,320 (for guidance only)$2,030 - 2,700 (for guidance only)
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Natural History - Fossil Diplomystus Fish
Eocene Period, circa 58 million years B.P.Sold for (Inc. bp): £104
A Diplomystus sp. fossil fish on a rectangular matrix. 439 grams, 20.7 cm
From Wyoming (Green River Formation), USA. From an old Bristol, UK, collection.
Seasonally some 58 million years ago, in the Green River region of Wyoming, torrential rains fell in the mountains. They flowed down the mountain sides, forming wide shallow lakes in the valley below. During the dry season, these lakes would dry up due to evaporation (as happens in certain parts of Africa today). Millions of fish died in this short period of time. This climatic cycle happened over a 20-thousand-year period. Layer upon layer of mud entombed all these fish. At a much later date, volcanic activity uplifted this area to expose the fossils. -
Natural History - British Asteroceras Fossil Ammonite
Jurassic Period, circa 202-201 million years B.P.Sold for (Inc. bp): £364
Displayed in a free-standing matrix; from the Frodingham Ironstone Member. 2 kg, 18 cm
From the exhausted Coningsby Quarry, Scunthorpe, Lincolnshire, UK. -
Natural History - Fossil Diplomystus Fish
Eocene Period, circa 58 million years B.P.Sold for (Inc. bp): £78
On a rectangular matrix. 292 grams, 13 cm
From Wyoming (Green River Formation), USA. From an old Bristol, UK, collection.
Seasonally some 58 million years ago, in the Green River region of Wyoming, torrential rains fell in the mountains. They flowed down the mountain sides, forming wide shallow lakes in the valley below. During the dry season, these lakes would dry up due to evaporation (as happens in certain parts of Africa today). Millions of fish died in this short period of time. This climatic cycle happened over a 20-thousand-year period. Layer upon layer of mud entombed all these fish. At a much later date, volcanic activity uplifted this area to expose the fossils.
