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LOT 2519
Natural History - Large Brown Calcite Mineral Specimens [12]
2 5/8 - 4 1/8 in. (2.24 kg total, 6.8-10.5 cm).
Comprising twelve large specimens with pearly lustre. [12, 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:
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LOT 2519
Natural History - Large Brown Calcite Mineral Specimens [12]
Sold for (Inc. bp): £7
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Natural History - Amber with Insect Inclusions
Oligocene Period, circa 45 million years B.P.Sold for (Inc. bp): £13
Including at least one fly; with a polished body. 2.89 grams, 25 mm
Ex private UK collection formed in the 1980s. -
Natural History - Fossil Brittle Star
Middle Ordovician Period, circa 450 million years B.P.Sold for (Inc. bp): £72
Ophiuroidea sp. specimen on irregular matrix. 403 grams, 14.2 cm
From El Kaid Errami, Tafilalt, Morocco, North Africa. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection. -
Natural History - Knightia Fossil Fish
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £46
Knightia alta specimen on a rectangular matrix. 397 grams, 13.3 cm
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.
