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LOT 2498
Natural History - Fossil Dragonfly Larvae
MIOCENE PERIOD, 16 MILLION YEARS B.P.
3 1/2 x 3 1/2 in. (85 grams total, 90 x 90 mm including case).
On amorphous matrix containing Libellula doris specimens. [No Reserve]
ProvenanceFrom Piedmont, Italy.
Acquired 1980s.
From an old Bristol, UK, collection.
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AUCTIONS:
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Natural History - Fossil Keichousaurus Marine Reptile Skeleton
Triassic Period, 250 million years B.P.Sold for (Inc. bp): £780
On a rectangular matrix displaying the complete skeleton. 3.8 kg, 31 x 23 cm
From Xingyi, Guizhou, China. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection.
Keichousaurus was a late-Triassic marine reptile, and a member of the Pleurosaur family, and went extinct 250 million years ago during the Triassic-Jurassic extinction event. They were specialised fish eaters, and were highly unusual amongst marine reptiles in that they gave birth to live young rather than laying eggs. -
Natural History - Mastodon Tusk Carving
Pliocene Period, 5.2-2.5 million years B.P.Sold for (Inc. bp): £46
Displaying a later carved stylised face with exaggerated facial detailing. 37 grams, 92 mm
From Island of Java, indonesia. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection. -
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Natural History - Fossil Diplomystus Fish
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £33
In a matrix. 112 grams, 13.2 x 8.5 cm
Fine condition.
From the Green River Formation, Lincoln County, Wyoming, U.S.A. From an old Lincoln collection.
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.
