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LOT 2504
Natural History - Knightia Fossil Fish Plate
EOCENE PERIOD, CIRCA 56-33 MILLION YEARS B.P.
4 in. (70 grams, 10.5 cm).
A roughly oval matrix with a Knightia alta fossil fish. [No Reserve]
ProvenanceAcquired on the UK art market.
Property of a Essex, UK, collector.
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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Natural History - Historic 'Australia' Boulder Opal Mineral Specimen
Sold for (Inc. bp): £59
The matrix showing pale sky-blue opal, collection number 425, with an old James Walker label. 34.8 grams, 39 mm
Acquired on the UK mineral and fossil market, since 1970. From the historic mineral collection of Richard Valentine Cain, London, UK, thence by descent. Accompanied by an original historic index file card. -
Natural History - Fossil Sinosura Starfish Group
Jurassic Period, circa 199-145 million years B.P.Sold for (Inc. bp): £7
Comprising three possibly Sinosura kelheimense specimens, a pair on one matrix and the other with one specimen. 146 grams total, 63-70 mm
From Stonhoffen, Germany. From a Lincolnshire, UK, collection. -
Natural History - Mixed Fossil Collection
Devonian-Late Pleistocene Period, 395 million-200,000 years B.P.Sold for (Inc. bp): £20
Comprising: a Pseudopecten bivalve; two Littorina littorea gastropods from Dorset; two Goniatite sp. ammonites; four polished Orthoceras sp. specimens; a Beudanticeras sp. ammonite from Kent; a rostral spine; and other fossils specimens. 1.3 kg total, 23-92 mm
From a Cambridgeshire, UK, collection.