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_900x900.jpg "Natural History - 'Whitby' Fossil Ammonites in Matrix")
_200x200.jpg "Natural History - 'Whitby' Fossil Ammonites in Matrix")
.jpg "Natural History - 'Whitby' Fossil Ammonites in Matrix")
LOT 1998
Natural History - 'Whitby' Fossil Ammonites in Matrix
JURASSIC PERIOD, CIRCA 180 MILLION YEARS B.P.
5 1/2 in. (770 grams, 14.2 cm).
A group of Gagaticeras sp. fossil ammonites in an oval-shaped pebble. [No Reserve]
ProvenanceFrom Lower Jurassic, Lower Lias, Yorkshire.
From a Lincolnshire, UK, collection.
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AUCTIONS:
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LOT 1998
Natural History - 'Whitby' Fossil Ammonites in Matrix
Sold for (Inc. bp): £78
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Natural History - Fossil Crab
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £260
A fossil crab on a sedimentary matrix, the matrix carved to act as a stand for display. 300 grams, 12.2 cm wide
From a Lincolnshire, UK, collection. -
Natural History - Polished Douvilleiceras Fossil Ammonite Group
Middle Cretaceous Period, circa 150 million years B.P.Sold for (Inc. bp): £20
A group of three polished Douvilleiceras sp. ammonites, also known as a Goat Horn. 137 grams total, 41-47 mm
From the North-East Coast of Madagascar in the jungles of Mahajanga. 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): £46
A fossil Diplomystus sp. fish in a matrix. 500 grams, 16.5 x 11.7 cm
From the Green River Formation, Lincoln County, Wyoming, U.S.A. From an old Lincoln, UK, 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.
