As one of the earliest fossilized forms of life, a mystery still surrounds the creation of Tiger Iron almost 2 billion years ago — during a hostile era when the newly formed continents were barren and life was confined to the seas. Scientists have suggested that it is a banded iron formation (layered sediments caused by photosynthetic cyanobacteria) or a Stromatolite (layers of algae), or even both. Simple photosynthesising life forms such as these dominated the first two billion years of life on Earth, and were probably the source of the Oxygen in the atmosphere
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Overall in good condition, noting the presence of a small chip to the tip of the piece, the underside drilled to accomodate a brass fitting to support on base. The base with felt feet applied, the printstone in excellent condition, noting a very small amount of adhesive visible around the edges of the brass fitting.
预计金额计算器
拍品 54拍卖编号 20863
ORD RANGES, AUSTRALIAA DYNAMIC SPECIMEN OF TIGER-IRON ON PRINTSTONE BASE估价: GBP 3,000 - 4,000