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LOT 2407
Knightia Double Fossil Fish Plate
EOCENE PERIOD, CIRCA 58-36 MILLION YEARS B.P.
4 in. (47.5 grams, 10.2 cm).
An oval matrix with Knightia alta specimens. [No Reserve]
ProvenanceFrom Wyoming, USA.
From a Cambridgeshire, 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 Uinta, 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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LOT 2407
Knightia Double Fossil Fish Plate
Estimate £20 - 30€23 - 35 (for guidance only)$27 - 41 (for guidance only)
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Group of Eleven [11] Cut Malachite Slices
Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Comprising eleven cut slices showing contrasting green banding. 845 grams total, 5.5-16.8 cm
From the Democratic Republic of the Congo. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Mixed Cornwall and Somerset Crystal and Mineral Specimen Group
Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Comprising: calcite from Dulcote Quarry, Wells, Somerset; quartz from Wheal Wrey, St Ive, Cornwall; sphalerite and chalcopyrite from Great South Tolgus, Tarewaste, Cornwall; pyrite from Trevaunance Cove, St Agnes, Cornwall; goethite from Barngate Level, Restormel Royal Iron Mine, Lostwithiel, Cornwall; quartz on fluorite from Wheal Mary Ann, Menheniot, Cornwall; goethite and quartz from Cornwall; quartz from Royal Restormel Mine, Lostwithiel, Cornwall; pyrite from Cornwall. 3.42 kg total, 6.3-12.6 cm
From the property of a Cornwall, UK, gentleman. -
Group of Eight [8] Selenite Specimen Rods
Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Comprising eight long crystal specimens showing vitreous lustre. 712 grams total, 12.9-18 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.