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_900x900.jpg "Natural History - Knightia Fossil Fish Group")
_200x200.jpg "Natural History - Knightia Fossil Fish Group")
.jpg "Natural History - Knightia Fossil Fish Group")
LOT 2723
Natural History - Knightia Fossil Fish Group
EOCENE PERIOD, CIRCA 56-33 MILLION YEARS B.P.
3 in. (159 grams total, 75 mm each).
Comprising three rounded sandstone matrices, each with a Knightia alta specimen. [3, No Reserve]
ProvenanceFrom a Lincolnshire, UK, collection.
FootnotesIn southwest Wyoming (and parts of Colorado and Utah) in the Green River Formation are found some of the world's most outstanding specimens of fossil fish. The Green River system was composed of three lakes: Lake Ulinta, Lake Gosiute and Fossil Lake. These Eocene lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary time. The climate was much different from the desert-like climate of this area today. Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today. Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time.
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AUCTIONS:
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LOT 2723
Natural History - Knightia Fossil Fish Group
Sold for (Inc. bp): £52
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Natural History - Mixed Fossil Shark and Fish Teeth Display
Cretaceous-Eocene Period, 70-45 million years B.P.Sold for (Inc. bp): £65
A glazed display case with mounted specimens of various teeth, vertebrae and ray palates, with identifying labels. 916 grams, 34.6 x 24.5 cm
From a Cambridgeshire, UK, collection. -
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Natural History - Knightia Fossil Fish Group
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £52
Comprising three rounded sandstone matrices, each with a Knightia alta specimen. 159 grams total, 75 mm each
From a Lincolnshire, UK, collection.
In southwest Wyoming (and parts of Colorado and Utah) in the Green River Formation are found some of the world's most outstanding specimens of fossil fish. The Green River system was composed of three lakes: Lake Ulinta, Lake Gosiute and Fossil Lake. These Eocene lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary time. The climate was much different from the desert-like climate of this area today. Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today. Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time. -
Natural History - Historic Collection of Mineral Specimens
Sold for (Inc. bp): £13
Comprising: dioptase on mottramite from Brazil, collection number 118; granite from adjacent to Ruislip Road, Greenford, Middlesex, England, collection number 467; chalcopyrite from Messini Mine, North Transvaal, South Africa, collection number 207; bornite of chalcopyrite from Massini Mine, North Transvaal, South Africa, collection number 210; quartz from England, collection number 133; Blue John from Derbyshire, England, collection number 148; apatite in calcite from Canada, collection number 388; fluorite in biotite, collection number 103; pyrite in quartz from Darwin, California, USA, collection number 422. 988 grams total, 32-91 mm
Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Each specimen accompanied by an original historic index file card.
