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LOT 2324
Knightia Fossil Fish in Matrix Group
EOCENE PERIOD, CIRCA 58-36 MILLION YEARS B.P.
2 3/4 - 3 1/4 in. (163 grams total, 72-82 mm).
Comprising three rounded matrices each with Knightia alta specimen. [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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Cut and Polished Agate Crystal Geode Half Group [10]
Sold for (Inc. bp): £7
Majority with an exposed cavity showing various interesting crystal formations. 760 grams total, 45-61 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Fossil Crinoid Plate
Silurian Period, circa 445-416 million years B.P.Sold for (Inc. bp): £20
Comprising Scyphocrinus elegans specimen and remains of another one with multiple stalk sections visible. 2.1 kg, 25.5 cm
From a Cambridgeshire, UK, collection. -
Cut and Polished Agate Geode Section Group [10]
Sold for (Inc. bp): £13
Each displaying grey or brown banding in contrasting colours. 1.71 kg total, 66-72 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.