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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 - Historic Graphite Mineral Specimen
Sold for (Inc. bp): £13
Comprising a number of steel grey masses on a host rock; supplied in a display box. 183 grams total, 59 mm
Collected in person from various parts of the world mainly between 1957-1966. 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. -
Natural History - Large British Fossil Nautiloid
Middle Cretaceous Period, circa 150 million years B.P.Sold for (Inc. bp): £85
The large specimen on a cut matrix with smaller ammonites and bivalves. 22.2 kg, 42 cm
From the Yorkshire coast, UK. From a Lincolnshire, UK, collection. -
Natural History - Quartz Crystal Nodule
Sold for (Inc. bp): £7
The nodule split to reveal the rich quartz crystal deposits within. 60 grams total, 40-41 mm
From a Cambridgeshire, UK, collection.