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LOT 2919
Polished Madagascan Fossil Cleoniceras Ammonite
JURASSIC PERIOD, CIRCA 199-145 MILLION YEARS B.P.
3 1/4 in. (135 grams, 84 mm).
Polished specimen showing attractive pattern formation. [No Reserve]
ProvenanceFrom a Cambridgeshire, UK, collection.
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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Large Cut and Polished Agate Geode Slice Group
Sold for (Inc. bp): £52
Comprising: a circular slice with light grey to cream banding with colourless quartz crystals; an irregular slice with brown banding and pale purple and colourless amethyst and quartz crystals; an irregular slice with dark grey to light grey banding. 930 grams total, 17-29 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Fossil Knightia Multi Fish Plate
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £59
Knightia alta fish on a rounded limestone matrix. 172 grams, 14 cm
From a Cambridgeshire, 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. -
Unpolished Large Fossil Tree Branch Section Group
Middle Jurassic Period, circa 150 million years B.P.Sold for (Inc. bp): £26
Comprising twenty cut sections of petrified wood in various sizes. 1.47 kg total, 5-10.6 cm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
