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LOT 2319
Knightia Fossil Fish Plate Group
EOCENE PERIOD, CIRCA 58-36 MILLION YEARS B.P.
2 3/4 - 3 in. (165 grams total, 70-74 mm).
Comprising three roughly oval matrices with Knightia alta specimens. [3, No Reserve]
ProvenanceFrom Wyoming, 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 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.
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AUCTIONS:
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LOT 2319
Knightia Fossil Fish Plate Group
Estimate £40 - 60€46 - 70 (for guidance only)$54 - 81 (for guidance only)
Opening Bid
£5 (EUR 6; USD 7) +BP*
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Fossil Shrimp Group
Late Cretaceous, circa 100.5-93.9 million years B.P.Estimate: £40 - 60 (+bp*)
Opening Bid: £5
Comprising two rectangular matrices, each with a fossil shrimp. 217 grams total, 78-88 mm
From Lebanon. From a Lincolnshire, UK, collection. -
Large Agadir Ammonite Display with Cut Base
Cretaceous Period, circa 145-66 million years B.P.Estimate: £100 - 140 (+bp*)
Opening Bid: £5
With a cut base and showing characteristic ribbing, possibly Calycoceras. 5.67 kg, 23.5 cm wide
From a Cambridgeshire, UK, collection. -
Group of Fourteen [14] Large Amethyst and Smoky Quartz Crystal Points
Estimate: £50 - 70 (+bp*)
Opening Bid: £5
Group of fourteen pyramidal points. 2.88 kg total, 58-84 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.