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LOT 2807
Fossil Knightia Fish in Matrix
EOCENE PERIOD, CIRCA 58-36 MILLION YEARS B.P.
7 in. (589 grams, 17.8 cm).
A Knightia alta fish on a rectangular limestone matrix. [No Reserve]
ProvenanceFrom a Cambridgeshire, 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.
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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Cut and Polished Amethyst Church
Sold for (Inc. bp): £39
A small ovoid geode section with deep purple amethyst crystals, polished outer face. 185 grams, 57.5 mm
From a Cambridgeshire, UK, collection. -
Mounted Amethyst Crystal Display
Estimate: £700 - 900 (+bp*)
Opening Bid: £380
A triangular polished geode section displaying green, pink and brown colours, lined with small prismatic light and dark purple amethyst crystals; mounted on a custom-made display stand. 3.48 kg total, 28.5 cm including stand
From Artigas, Uruguay. Property of a London lady. -
Mosasaur 'Marine Dinosaur' Fossil Jaw Fragment
Cretaceous Period, circa 145-65 million years B.P.Sold for (Inc. bp): £364
A composite jaw fragment set with five teeth. 229 grams, 17 cm
From Morocco, North Africa. From a Cambridgeshire, UK, collection.
The Mosasaur is an extinct, large marine reptile dinosaur with an elongated body, long snout and paddle-like limbs. Found worldwide, they competed with other well-known sea predators of the Late Cretaceous, such as plesiosaurs and ichthyosaurs, for food, existing primarily on a diet of ammonoids, cuttlefish and fish.
