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LOT 2123
Natural History - Knightia Fossil Fish Plate
EOCENE PERIOD, CIRCA 56-33 MILLION YEARS B.P.
6 1/4 x 5 1/8 in. (507 grams, 16 x 13 cm).
The square sandstone matrix with two Knightia alta fossil fish specimens. [No Reserve]
ProvenanceFrom a Lincolnshire, UK, collection.
FootnotesIn 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.
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AUCTIONS:
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Natural History - Fossil Phacops Trilobite
Upper Devonian Period, circa 419-358 million years B.P.Sold for (Inc. bp): £7
Phacops rana trilobite on a freestanding matrix. 120 grams, 46 mm
From a Lincolnshire, UK, collection. -
Natural History - Medium Green Fuchsite Mineral Specimen Group [20]
Sold for (Inc. bp): £3
Comprising large irregular specimens of light to dark green colour. 1.53 kg total, 45-75 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Very Large British Cardinia Fossil Bivalve Multi Display
Jurassic Period, circa 201-202 million years B.P.Sold for (Inc. bp): £221
A plate of natural, unpolished Cardinia sp. fossil bivalves from the Frodingham formation; accompanied by a display stand. 17.7 kg total, 50 cm
From the exhausted Coningsby Quarry, Scunthorpe, Lincolnshire, UK.