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![Natural History - Black Natural Obsidian Glass Specimen Group [100]](https://timelineauctions.com/zoom_images/zoomthumb/2/0/208078_900x900.jpg "Natural History - Black Natural Obsidian Glass Specimen Group [100]")
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![Natural History - Black Natural Obsidian Glass Specimen Group [100]](https://timelineauctions.com/upload/images/items/208078.jpg "Natural History - Black Natural Obsidian Glass Specimen Group [100]")
LOT 2046
Natural History - Black Natural Obsidian Glass Specimen Group [100]
1 1/8 - 1 7/8 in. (1.13 kg total, 28-47 mm).
Comprising cut chunks in a range of sizes. [100, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
TimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
LOT 2046
Natural History - Black Natural Obsidian Glass Specimen Group [100]
Sold for (Inc. bp): £1
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Natural History - Fossil Tiger Shark Tooth Display
Eocene Period, circa 70-50 million years B.P.Sold for (Inc. bp): £26
Comprising four serrated teeth in a custom display frame. 42 grams total, 13 cm high including case
From a Cambridgeshire, UK, collection. -
Natural History - Fossil Wood Section
Late Triassic Period, circa 225 million years B.P.Sold for (Inc. bp): £13
Cut to a freestanding shape with two polished faces. 703 grams, 10.4 cm
From a Lincolnshire, UK, collection. -
Natural History - Knightia Fossil Fish Plate
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £85
The square sandstone matrix with two Knightia alta fossil fish specimens. 507 grams, 16 x 13 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.
