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LOT 1988
Natural History - Polished Fossil Wood Slice
LATE TRIASSIC PERIOD, CIRCA 225 MILLION YEARS B.P.
5 1/8 in. (223 grams, 13 cm).
Polished to both cut faces and displaying textured bark on the edges. [No Reserve]
ProvenanceFrom Madagascar.
From a Lincolnshire, UK, collection.
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AUCTIONS:
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Natural History - Knightia Fossil Fish
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £46
The Knightia alta specimen on a rectangular sandstone matrix. 140 grams, 10 cm
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 - Mixed Cut and Polished Agate Slice Collection [10]](https://timelineauctions.com/upload/images/items/small/208004-s.jpg)
Natural History - Mixed Cut and Polished Agate Slice Collection [10]
Sold for (Inc. bp): £26
Each with attractive banding, some with the internal cavity filled with crystals; some with enhanced colour. 1.06 kg total, 9.8-12 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Cut and Polished Agate Crystal Geode, Natural Box & Lid
Sold for (Inc. bp): £20
Comprising a rounded nodule cut at one end to form a 'lid'; brown, white and red banding; the cavity with small lavender-coloured amethyst crystals. 1.15 kg total, 88-94 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
