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LOT 2462
Natural History - Fossil Mosasaur 'Marine Dinosaur' Vertebra, Ribs and Jaw
CRETACEOUS PERIOD, CIRCA 145-65 MILLION YEARS B.P.
18 1/8 in. (12.8 kg, 46 cm).
Comprising various bone and rib fragments, a large vertebra and jaw fragments with teeth from Mosasaur prognathodon sp.; on a sandstone matrix with applied plaster reinforcement to allow it to be displayed.
ProvenanceFrom a Cambridgeshire, UK, collection.
FootnotesThe Mosasaur is an extinct, large marine reptile dinosaur with a snake-like body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish.
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 2462
Natural History - Fossil Mosasaur 'Marine Dinosaur' Vertebra, Ribs and Jaw
Sold for (Inc. bp): £780
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Natural History - Amethyst Crystal and Agate Geode Cut Half Collection [6]
Sold for (Inc. bp): £39
Comprising six halves, each showing an internal cavity and attractive banding. 749 grams total, 51-78 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Green River Fossil Fish Group
Eocene Period, circa 56-33 million years B.PSold for (Inc. bp): £59
Two Green River fish specimens Diplomystus sp. in a matrix. 243 grams, 15.8 cm
From Wyoming (Green River Formation), USA. From a 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. -
Natural History - Fossil Megalodon Shark Tooth
Pliocene Period, 5.2-2.5 million years B.P.Sold for (Inc. bp): £98
Carcharocles megalodon tooth displaying some good polished enamel. 198 grams, 95 mm
Ex Lincolnshire, UK, collection.
Carcharodon megalodon is regarded as one of the largest and most powerful marine predators in vertebrate history and likely had a profound impact on structuring of the marine communities. Fossil remains indicate that this giant shark reached a length of more than 16 meters (52 ft) and also affirm that it had a cosmopolitan distribution. Scientists suggest that in life it looked like a stockier version of the great white shark, Carcharodon carcharias.
