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LOT 1839
Natural History - Large Kalahari Desert Wind Stone
4 in. (677 grams, 10 cm).
A wind-rounded pebble in a hollowed out 'nest'; with a hessian draw-ribbon pouch. [No Reserve]
ProvenanceFrom the Kalahari Desert, Southern Africa.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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Natural History - Knightia Fossil Fish
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £85
Knightia alta specimen on a rectangular matrix. 200 grams, 11.7 cm
From Wyoming (Green River Formation), USA. Acquired during 1980s. From the Pradi Collection, Boston, U.S.A.
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 - Large Fossil Clavilithes Gastropod
Eocene Period, circa 40 million years B.P.Sold for (Inc. bp): £59
Clavilithes macrospira; supplied in a cardboard specimen tray. 180 grams, 13 cm
From Barton-on-Sea, Hampshire, UK. Collected between 1930 and 1960. From the collection of the palaeontologist R Gledhill. -
Natural History - Otodus Shark Fossil Teeth on Matrix
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £52
Comprising six Otodus obliquus teeth set on a matrix. 1.18 kg, 15.2 cm
From a Cambridgeshire, UK, collection.
