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LOT 2506
Natural History - Dolphin Vertebra Group
MIOCENE AGE, CIRCA 15 MILLION YEARS B.P.
2 1/4 - 3 5/8 in. (352 grams total, 56-91 mm).
Comprising four Delphinus sp. vertebrae. [4, No Reserve]
ProvenanceFrom North Carolina, U.S.A.
Acquired 1950s-1960s.
From an old Bristol, UK, palaeontological collection.
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AUCTIONS:
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Natural History - Fossil Barasaurus Skeleton
Early Triassic Period, circa 255 million years B.P.Estimate: £400 - 600 (+bp*)
Opening Bid: £183
Barasaurus besairiei reptile on a matrix. 713 grams, 23 cm
From Plateau de I'lsala, Madagascar. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection.
Barasaurus is an extinct genus of the Owenettid procolophonoid parareptile. -
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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 - Cut and Polished Fossil Ammonite Halves
Middle Cretaceous Period, 150 million years B.P.Sold for (Inc. bp): £26
Displaying the distinctive structure of the chambers of Cleoniceras sp. ammonite with some iridescence; chip to edge of one half. 190 grams total, 87-90 mm
From Madagascar. Collected between 1930 and 1960. From the collection of the palaeontologist R Gledhill.
