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LOT 1714
Natural History - Large Kalahari Desert Wind Stone
3 3/8 in. (580 grams total, 85 mm).
A large wind-rounded pebble with its individual hollowed out 'nest', from the Kalahari Desert region, western Africa; set provided with a hessian draw-ribbon pouch. [No Reserve]
ProvenanceFrom the Kalahari Desert.
Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
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AUCTIONS:
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Natural History - Polished Douvilleiceras Fossil Ammonite Group
Cretaceous Period, Albian Stage, circa 150 million years B.P.Sold for (Inc. bp): £72
A group of three Douvilleiceras sp. ammonites, sometimes known as a Goat Horn, polished to reveal rich calcites and striking suture patterns. 123 grams total, 43-47 mm
From the North-East coast of Madagascar in the jungles of Mahajanga. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection. -
Natural History - Sulphur Specimen Group
Sold for (Inc. bp): £13
A group of 100 yellow and white sulphur mineral specimens. 1.57 kg total, 36-57 mm
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Hadrosaur Dinosaur Egg
Cretaceous Period, 145-65 million years B.P.Sold for (Inc. bp): £416
A Charonosaurus sp. hadrosaur egg on a matrix retaining evidence of the original leathery surface. 3.9 kg, 16 cm wide
From a Cambridgeshire, UK, collection.
Dinosaur eggs are known from about 200 sites around the world, the majority in Asia and mostly in terrestrial (non-marine) rocks of Cretaceous Age. It may be that thick calcite eggshells evolved during the Cretaceous (145 to 65 million years ago). Most dinosaur eggs have one of two forms of eggshell that are distinct from the shells of related modern animal groups, such as turtles or birds; however, some eggs closely resemble the type of shells seen in present day ostrich eggs.
