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LOT 2447
Natural History - Mastodon Bone Face Carving
PLIOCENE PERIOD, 5.2-2.5 MILLION YEARS B.P.
3 in. (74 grams, 78 mm).
Displaying a later carved stylised face with exaggerated facial detailing. [No Reserve]
ProvenancePrivate UK collection formed in the 1980s.
Property of an East Sussex, UK, teacher.
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AUCTIONS:
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Natural History - Fossil Malladoides Trilobite
Upper Devonian Period, circa 385-359 million years B.P.Sold for (Inc. bp): £46
The Morocconites malladoides on a matrix. 24 grams, 77 mm
From the Atlas Mountains, Hamar Laghdad Formation, Pragian, (Alnif), Morocco. From an old Oxfordshire, UK, fossil and mineral collection. -
Natural History - Cut and Polished Fossil Ammonite
Middle Cretaceous Period, 150 million years B.P.Sold for (Inc. bp): £33
Revealing the distinctive structure of the Cleoniceras sp. chambers, some iridescence to outer surfaces. 245 grams total, 10.2 cm each
Collected 1930-1960. From the collection of the palaeontologist R Gledhill. -
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. 233 grams, 14.6 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.
