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![Group of Fifteen [15] Cut and Polished Agate Geode Slices and Halves](https://timelineauctions.com/zoom_images/zoomthumb/2/5/256013_900x900.jpg "Group of Fifteen [15] Cut and Polished Agate Geode Slices and Halves")
![Group of Fifteen [15] Cut and Polished Agate Geode Slices and Halves](https://timelineauctions.com/zoom_images/zoommap/2/5/256013_200x200.jpg "Group of Fifteen [15] Cut and Polished Agate Geode Slices and Halves")
![Group of Fifteen [15] Cut and Polished Agate Geode Slices and Halves](https://timelineauctions.com/upload/images/items/256013.jpg "Group of Fifteen [15] Cut and Polished Agate Geode Slices and Halves")
LOT 2290
Group of Fifteen [15] Cut and Polished Agate Geode Slices and Halves
2 - 5 5/8 in. (1.68 kg total, 5.3-14.2 cm).
Comprising five translucent, polished slices and ten cut and polished geode sections. [15, No Reserve]
ProvenanceFrom Brazil.
Ex Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
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AUCTIONS:
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LOT 2290
Group of Fifteen [15] Cut and Polished Agate Geode Slices and Halves
Sold for (Inc. bp): £26
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Fossil Phareodus Fish in Matrix
Eocene Epoch, circa 56-33.9 million years B.P.Sold for (Inc. bp): £111
On a rectangular matrix showing the characteristic oval body and a small head. 1.03 kg, 16 cm
From Green River formation, Wyoming, USA. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent. -
Woolly Rhinoceros Juvenile Milk Tooth
Devensian Period, circa 110,000-12,000 years B.P.Sold for (Inc. bp): £33
Displaying roots and folded enamel. 43.6 grams, 48 mm
Perma frost of Siberia. From a Netherlands collector in the 2020s. From a private collection. -
Knightia Multiple Fossil Fish Plate
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £72
An oval matrix with four small and one large Knightia alta specimens. 192 grams, 14.4 cm
From Wyoming, USA. 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 Uinta, 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.
