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LOT 2321
Polished Fossil Orthoceras Display Plaque
DEVONIAN PERIOD, CIRCA 417-354 MILLION YEARS B.P.
9 1/2 in. (2.8 kg, 24 cm).
An irregular plaque with polished bullet-shaped orthoceras specimens. [No Reserve]
ProvenanceFrom the private collection of a Devon, UK, lady.
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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Fossil Fish in Matrix
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £117
On a rectangular matrix, possibly Diplomystus. 335 grams, 16.5 cm
From Green River formation, Wyoming, USA. From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent. -
![Group of One Hundred [100] Mahogany Obsidian Volcanic Glass Specimen](https://timelineauctions.com/upload/images/items/small/256007-s.jpg)
Group of One Hundred [100] Mahogany Obsidian Volcanic Glass Specimen
Sold for (Inc. bp): £7
Comprising one hundred irregular specimens. 3.68 kg total, 32-52 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
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Seymchan Meteorite Cross-Section
Circa 4.5 billion years B.P.Sold for (Inc. bp): £8,450
A magnificent polished cross-section from the Seymchan pallasite meteorite, revealing the honeycomb-like structure characteristic of pallasites, with translucent olivine crystals embedded within iron-nickel crystals; accompanied by a custom-made display stand. 356 grams, 23.2 cm
Discovered in 1967, recovered from the bed of the river Hekandue in the Magadan District, Russia (62° 54’ N, 152° 26’ E).
The main mass of 272.3 kilograms was found during a survey in June 1967 by geologist F. A. Mednikov. The mass was a triangular-shaped thumb-printed meteorite lying among the stones of the brook bed. A second specimen of 51 kilograms was found with a mine detector at a distance of 20 meters from the first in October 1967 by I. H. Markov. During a new expedition in 2004, Dmitri Kachalin recovered about 50 kilograms of new material. Remarkably, about 20% of the new specimens were found to contain olivine crystals, and so revealed the silicate nature of the meteorite. The pallasitic structure was not previously discovered during studies on small metal-only sections of the original mass. The distortion of the Widmanstatten patterns is interpreted as shearing of the superheated meteorite as it broke up in the Earth's atmosphere.
