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LOT 2387
Natural History - Fossil Rastellum Bivalve
JURASSIC PERIOD, CIRCA 155 MILLION YEARS B.P.
2 5/8 in. (121 grams, 66 mm).
A Rastellum carinatum fossil bivalve. [No Reserve]
ProvenanceFrom a Cambridgeshire, UK, collection.
Property of a Cambridgeshire, UK, gentleman.
Rastellum carinatum specimens have wide, angled ribs that have led to it being called the 'denture clam'; the zig-zag join between the two shells stopped coarse dirt and debris entering the shell and damaging its soft body. Like modern oysters, it lived in shallow coastal waters including the interstitial zone and fed on food particles that it filtered out of the sea water.
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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Natural History - British Wild Boar and Other Fossil Bone Group
Late Pleistocene Period, 1.5 million-7,700 years B.P.Sold for (Inc. bp): £1
Including wild boar, deer, and others, comprising: neck vertebrae, collar bone, ball-shaped finial of the bone, etc. 1.54 kg total, 6.2-23 cm
Found Colwick Park, Nottinghamshire, UK. Ian Wilkinson collection, Nottinghamshire, UK, formed since 1985. -
Natural History - Prehistoric Skull Replica
20th century A.D.Sold for (Inc. bp): £312
With narrow brain-pan and prominent incisor and canine teeth; perhaps Australopithecus. 1.54 kg, 20.5 cm
From a collection acquired on the UK art market from various auction houses and collections mostly before 2000. From an important Cambridgeshire estate; thence by descent. -
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.
