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LOT 2331
Fossil Knightia Fish Plate
EOCENE PERIOD, CIRCA 58-36 MILLION YEARS B.P.
6 7/8 x 5 in. (929 grams, 17.5 x 12.5 cm).
A Knightia alta fish on a rectangular limestone matrix. [No Reserve]
ProvenanceFrom Wyoming, USA.
From the private collection of a Devon, UK, lady.
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 2331
Fossil Knightia Fish Plate
Estimate £30 - 40€35 - 46 (for guidance only)$41 - 54 (for guidance only)
Opening Bid
£5 (EUR 6; USD 7) +BP*
-
Group of Thirty-Two [32] Cut Half Agate Geode and Blue Calcite Mineral Specimens
Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Boxed group of cut agate geodes, most with crystal-lined cavities, and pale-blue calcite specimens. 1.85 kg total, 29-52 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Polished Fossil Coral Head
Devonian Period, circa 417-354 million years B.P.Estimate: £20 - 30 (+bp*)
Opening Bid: £5
Rounded specimens showing the internal structure of coral. 216 grams, 78 mm
From a Cambridgeshire, UK, collection. -
Two Fossil Elrathia Kingii Trilobites on Matrix
Devonian Period, circa 385-359 million years B.P.Estimate: £30 - 40 (+bp*)
Opening Bid: £5
Comprising two Elrathia kingii specimens on matrices. 470 grams total, 10.5-11.3 cm
From a Lincolnshire, UK, collection.