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![Cut and Polished Agate Geode Slice Collection [20]](https://timelineauctions.com/zoom_images/zoomthumb/2/2/227822_900x900.jpg "Cut and Polished Agate Geode Slice Collection [20]")
![Cut and Polished Agate Geode Slice Collection [20]](https://timelineauctions.com/zoom_images/zoommap/2/2/227822_200x200.jpg "Cut and Polished Agate Geode Slice Collection [20]")
![Cut and Polished Agate Geode Slice Collection [20]](https://timelineauctions.com/upload/images/items/227822.jpg "Cut and Polished Agate Geode Slice Collection [20]")
LOT 2856
Cut and Polished Agate Geode Slice Collection [20]
2 1/4 - 5 1/4 in. (428 grams total, 5.7-13.5 cm).
Each displaying attractive banding, some dyed to enhance the colour. [20, 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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Polished Fossil Orthoceras and Goniatite Stand
Devonian Period, circa 400-354 million years B.P.Sold for (Inc. bp): £26
Comprising a Goniatite sp. and a Orthoceras sp. set on a freestanding textured matrix. 946 grams, 15.9 cm
From Atlas Mountains, Morocco, North Africa. From a Cambridgeshire, UK, collection. -
Fossil Equus Ice Age Horse and Woolly Rhino Vertebra Group
Pleistocene Period, 40,000-20,000 B.P.Sold for (Inc. bp): £78
Comprising: Equus ferus CV5 vertebra, inked collection number '73'; Cervus elaphans V2 vertebra, inked collection number '74'; Coelodonta antigua woolly rhino vertebra, inked collection number '75'. 495 grams total, 9.3-12.4 cm
From Barton, Northamptonshire, UK. Acquired from Milton Keynes Geological Society in 1999. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; with collection no.VM73,74 & 75; his collection of antiquities and natural history was formed since 1948; thence by descent. -
Knightia Fossil Fish
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £39
A rounded matrix with two Knightia alta fish with faint remains of another one. 62 grams, 91 mm
From Wyoming (Green River Formation), 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 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.
