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LOT 2513
Natural History - British Promicroceras Fossil Ammonite Group
JURASSIC PERIOD, CIRCA 190 MILLION YEARS B.P.
2 1/4 - 3 3/8 in. (384 grams total, 57-85 mm).
Comprising four irregular matrices with Promicroceras planicosta fossils. [4, No Reserve]
ProvenanceFound Charmouth, Dorset, England.
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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LOT 2513
Natural History - British Promicroceras Fossil Ammonite Group
Sold for (Inc. bp): £52
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Natural History - Green River Fossil Fish Group
Eocene Period, circa 56-33 million years B.PSold for (Inc. bp): £39
Two Green River fish specimens Diplomystus sp. in a matrix. 437 grams, 12.5 x 14.2 cm
From Wyoming (Green River Formation), USA. From a 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. -
Natural History - Large Pale Purple Amethyst Crystal Display Slab
Sold for (Inc. bp): £26
On a large circular matrix, with well-formed prismatic lavender-coloured amethyst crystals with sprinkling of chalcopyrite. 972 grams total, 16 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
![Natural History - Boxed Unpolished Fossil Tree Branch Section Group [8]](https://timelineauctions.com/upload/images/items/small/211440-s.jpg)
Natural History - Boxed Unpolished Fossil Tree Branch Section Group [8]
Triassic Period, 251-199 million years B.P.Sold for (Inc. bp): £20
Comprising eight cut sections, each showing some bark detail; in labelled specimen boxes. 215 grams total, 23-34 mm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
