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LOT 2200
Natural History - Megalodon Giant Shark Fossil Tooth
PALAEOLITHIC PERIOD, CIRCA 400,000 B.P.
3 3/8 in. (108 grams, 87 mm).
Carcharocles megalodon tooth with some good polished enamel. [No Reserve]
ProvenanceFrom Florida, USA.
Collected between 1930 and 1960.
From the collection of the palaeontologist R Gledhill.
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AUCTIONS:
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Natural History - Purple Agate Crystal Geode Cut Half Group
Sold for (Inc. bp): £13
The exposed internal cavities filled with small crystals; in enhanced purple colour. 735 grams total, 8.3-11 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Boxed Fossil Perisphinctes Ammonite Group
Jurassic Period, circa 199-145 million years B.P.Sold for (Inc. bp): £46
Comprising two large and one smaller Perisphinctids indogermanus ammonite. 369 grams total, 55-78 mm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Knightia Fossil Fish
Eocene Period, circa 58 million years B.P.Sold for (Inc. bp): £26
Knightia alta specimen on a rectangular matrix. 273 grams, 13 cm
From Wyoming (Green River Formation), USA. From an old Bristol, 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.
