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LOT 2292
Natural History - Large British Eleganticeras Fossil Ammonite Multi Display 'Egg'
JURASSIC PERIOD, CIRCA 185-180 MILLION YEARS B.P.
7 1/2 in. (3.8 kg, 19 cm wide).
Displaying Eleganticeras Elegantulum ammonite specimens, with naturally occurring crude oil within the specimen; repaired.
ProvenanceFrom 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 2292
Natural History - Large British Eleganticeras Fossil Ammonite Multi Display 'Egg'
Estimate £400 - 600€460 - 700 (for guidance only)$540 - 810 (for guidance only)
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Natural History - Fossil Sand Dollar on Rock
Jurassic Period, 199-145 million years B.P.Sold for (Inc. bp): £59
The large specimen on a sandstone matrix. 363 grams, 12.9 cm
Ex Lincolnshire, UK, collection. -
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Natural History - Mosasaur 'Marine Dinosaur' Skull
Cretaceous Period, 145-65 million years B.P.Sold for (Inc. bp): £22,750
A magnificent, full three-dimensional fossil skull of Mosasaur Prognathodon with upper and lower mandibles, eye sockets and brain cavity; including jaw teeth and throat teeth; some restoration; with custom-made display stand. 26.45 kg total, 95 cm wide (76 cm high including stand)
Previously in a French collection. From a Lincolnshire, UK, collection. Property of a Cambridgeshire gentleman. -
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.
