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LOT 1909
Natural History - Diplomystus Fossil Fish
EOCENE PERIOD, CIRCA 56-33 MILLION YEARS B.P.
7 1/2 in. (350 grams, 19 cm).
On an oval sandstone matrix. [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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Natural History - Fossil Bird Bone Group
Pleistocene Age, circa 2 million years B.P.Sold for (Inc. bp): £1
Comprising two hollow wading bird bones. 13 grams total, 77-90 mm
From Rancho La Brea Formation, Maricopa Co., California, USA. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection. -
Natural History - Mixed Cut and Polished Agate Crystal Geode Half Group [10]
Sold for (Inc. bp): £20
Each displaying banding in various colours and crystal filled cavities. 957 grams total, 55-75 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Historic Baryte Mineral Specimen
Sold for (Inc. bp): £26
Comprising light blue tabular crystals forming an almost perfect triangle. 117 grams, 66 mm
From Nchanga, Zambia. Collected in person in 1974. From the private mineral collection of Stephen Atkinson, Harpenden, UK. Accompanied by a copy of a letter from the vendor giving details of him collecting these minerals throughout his life.