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LOT 2314
Natural History - Whitby Dac Fossil Ammonite
LOWER JURASSIC PERIOD, TOARCIAN STAGE, CIRCA 180 MILLION YEARS B.P.
4 1/2 in. (554 grams total, 11.6 cm).
The round nodule half containing a Pseudolioceras ammonite. [No Reserve]
ProvenanceEx 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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Natural History - Fossil Brittle Star
Ordovician Period, circa 450 million years B.P.Sold for (Inc. bp): £20
Ophiura sp. on an irregular matrix; repaired. 283 grams total, 12 cm
Ex Lincolnshire, UK, collection. -
Natural History - Knightia Fossil Fish
Eocene Period, circa 58 million years B.P.Sold for (Inc. bp): £78
The rectangular matrix containing a Knightia alta fish. 147 grams, 12.8 cm
From Wyoming (Green River Formation), USA. Acquired during 1980s. From the Pradi Collection, Boston, U.S.A.
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 - 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.
