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LOT 2432
Natural History - Mosasaur Fossil Tooth Group
CRETACEOUS PERIOD, 145-65 MILLION YEARS B.P.
1 1/8 - 1 3/8 in. (26 grams total, 30-35 mm).
Of three teeth from Prognathodon sp., mosasaur specialised in eating tough shelled prey. [3, No Reserve]
ProvenanceUK collection since the 1990s.
Property of a Sussex, UK, teacher.
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AUCTIONS:
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Natural History - Large Display Piece of Polished Amber with Insects
Oligocene Period, circa 45 million years B.P.Sold for (Inc. bp): £98
Containing flies together with other inclusions. 32.6 grams, 75 mm
UK collection since the 1990s. Property of a Sussex, UK, teacher. -
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Natural History - Knightia Fossil Fish
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £33
In a rectangular matrix. 345 grams, 18 x 12.5 cm
Fine condition.
From Wyoming, Green River Formation, U.S.A. Acquired during the 1980s. From the Pradi Collection, Boston, U.S.A.
Seasonally, some 56 million years ago, in the Green River Region of Wyoming, torrential rains fell on the mountains. The rain flowed down the mountain sides, forming wide shallow lakes in the valley below. During the dry season, these lakes evaporated (similar to 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 was deposited over these years, entombing huge numbers of fish. At a much later date volcanic activity uplifted this area to expose their fossils. -
Natural History - Fossil Saltasaurus Egg Shell Group
Jurassic Period, 199-145 million years B.P.Sold for (Inc. bp): £20
Comprising four fossilised fragments. 28.4 grams total, 30-34 mm
From Patagonia. From a Cambridgeshire, UK, collection.
