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LOT 2555
Fossil Perisphinctid Ammonite
JURASSIC PERIOD, CIRCA 174-145 MILLION YEARS B.P.
3 3/8 in. (154 grams, 87 mm).
Perisphinctid indogermanus fossil ammonite showing clear ribbing on both sides. [No Reserve]
ProvenanceFrom a Lincolnshire, 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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Druzy Quartz Geode Display
Circa 140-120 million years B.P.Sold for (Inc. bp): £1,235
An exquisite formation of grey and white druzy quartz on a geode section, a pair of cut stalagmite 'eyes' on one side with polished upper face showing the layered structure; mounted on a custom-made display stand. 3.85 kg, 23 x 18 x 15 cm, 29 cm including stand
From Artigas, Uruguay. Property of a London lady. -
Fossil Knightia Fish Plate
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £78
A Knightia alta fish on a rectangular limestone matrix. 929 grams, 17.5 x 12.5 cm
From Wyoming, USA. From the private collection of a Devon, UK, lady.
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 Uinta, 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. -
Large Cut and Polished Banded Agate Crystal Geode Slice
Sold for (Inc. bp): £52
Thick slice of 'fortress' agate with grey, brown, black and orange banding, the internal cavity lined with small pale purple amethyst crystals. 575 grams, 24.6 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
