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LOT 2279
Natural History - Fossil Otodus Shark Tooth on Matrix
EOCENE PERIOD, CIRCA 56-33 MILLION YEARS B.P.
3 7/8 in. (151 grams, 97 mm).
Comprising a large Otodus obliquus tooth with good enamel, embedded in a matrix. [No Reserve]
ProvenanceFrom a Cambridgeshire, UK, collection.
Property of a Cambridgeshire, UK, gentleman.
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AUCTIONS:
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Natural History - Insect Paper Weight Group
20th century A.D.Sold for (Inc. bp): £59
Comprising three resin blocks with: a shield bug; Manchurian scorpion from China; an emerald beetle from Japan. 263 grams total, 74 x 41 mm each
Acquired from Newark Fossil and Gem Fair, circa 2012. Ian Wilkinson collection, Nottinghamshire, UK. -
Natural History - Fossil Shark and Fish Tooth Display
Cretaceous to Eocene Period, 70-45 million years B.P.Sold for (Inc. bp): £78
A wooden display case containing labelled specimens of fossil shark and ray teeth from different species. 934 grams total, 34.7 x 24.2 cm
From a Cambridgeshire, UK, collection. Property of a Cambridgeshire, UK, gentleman. -
Natural History - Polished Seymchan Meteorite Slab
Found June 1967 A.D.Sold for (Inc. bp): £286
A highly polished rectangular slice of the Seymchan meteorite with an exceptional number of transparent olivine inclusions, repaired. 62.4 grams, 12 cm
From the private collection of a London gentleman, from his grandfather's collection formed before the early 1970s.
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.
