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LOT 2580
Natural History - Knightia Fossil Fish Plate
EOCENE PERIOD, 56-33 MILLION YEARS B.P.
9 1/2 in. (955 grams, 24.2 cm).
The rectangular matrix containing four Knightia alta sp. fish. [No Reserve]
ProvenanceFrom the Green River Formation, Wyoming, USA.
Ex 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 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 - Mineral Specimen Collection
Sold for (Inc. bp): £7
Comprising: a dolomite and quartz specimen from Nentsbury Mine, Northumbria, UK, supplied with an old M.G. Weller collection label; a cassiterite specimen from Old Beam Mine, Bugle, Cornwall, UK, supplied with an old M.G. Weller collection label; a geode section with a cluster of amethyst crystals, from Brazil; both halves of a quartz geode from Morocco; a group of thirty-five pyrite crystal nuggets of various sizes. 318 grams total, 9-57 mm
Fine condition.
From an old Oxfordshire, UK, fossil and mineral collection. -
Natural History - Large Historic 'Brazil' Sphalerite Mineral Specimen
Sold for (Inc. bp): £20
An interesting specimen displaying black, greyish black, slate-grey and toffee-brown colours, collection number 125. 1.08 kg, 15 cm
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 - Historic 'Mount Ida, U.S.A.' Smokey Quartz Crystal Specimen
Sold for (Inc. bp): £85
Consisting of very large, almost black crystals, collection number 607, with an old Geologisch Centrum label. 523 grams, 10 cm
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.