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LOT 1727
Natural History - Cut and Polished Agate Slice
7 in. (278 grams, 18 cm high).
A cut and polished banded agate slice, displayed on a crescentic wooden base. [No Reserve]
ProvenanceFrom Uruguay.
Private collection, Munster, Germany.
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AUCTIONS:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
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Natural History - Fossil Ammonite Cluster
Callovian Age, circa 166-163.5 million years B.P.Sold for (Inc. bp): £208
A cluster of Kosmoceras sp. fossil ammonites in a matrix. 697 grams, 13.3 cm
Ex Cambridgeshire, UK, collection. -
Natural History - Yellow-Brown Calcite Group
Sold for (Inc. bp): £7
A group of 50 yellow-brown calcite specimens with waxy lustre. 540 grams total, 25-47 mm
From Mexico. 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.
