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LOT 2295
Knightia Fossil Fish in Matrix Group
EOCENE PERIOD, CIRCA 58-36 MILLION YEARS B.P.
3 - 3 1/4 in. (211 grams total, 78-84 mm).
Comprising three rounded matrices with Knightia alta. [3, No Reserve]
ProvenanceFrom 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.
CONDITIONTimeLine 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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Quality Crystal Mineral Specimen Collection [3]
Sold for (Inc. bp): £39
Comprising: calcite, hemimorphite on limonite(?), and calcite in iron rich matrix. 905 grams total, 7.1-12 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Fossil Petraster Starfish
Ordovician Period, circa 485-444 million years B.P.Sold for (Inc. bp): £52
An irregular matrix with a single Petraster sp. specimen. 550 grams, 12.1 cm
From a Lincolnshire, UK, collection. -
Polished Fossil Sand Dollar Group
Miocene Period, circa 25 million years B.P.Sold for (Inc. bp): £20
Comprising two polished examples. 282 grams total, 68-73 mm
From a Lincolnshire, UK, collection.