Stromatolites
(Hand
Polished)
Geologic
Time: Precambrian - Paleoproterozoic (2.2 to 2.4 Billion Years Old)
Size (25.4
mm = 1 inch): 180 mm by 85 mm (maximum)
Fossil Site:
Eastern Andes South of Cochabamba, District of Cochabamba, Bolivia, South
America
Fossil Code:
ST078
Price: sold
Description:
This is an exceptional example the Earth's oldest fossil, stromatolite,
from an unusual South American Precambrian formation. This slab
of stromatolite was cut and polished perpendicularly to the individual
colonial layers and thus exhibits multiple colored growth rings
of what is termed micro-domal structure. The stromatolite has been
polished to a mirror finish on one side, vividly rendering the inherent
beauty of stromatolite and making apparent the biogenic process
in its formation. This one is an end piece, giving you an additional
perspective of the stromatolite in its native state. The age is
estimated to be 2.2 to 2.4 BILLION years old, near the Lower Paleoproterozoic,
from a time in the Precambrian when stromatolite is believed to
have been both ubiquitous and abundant on earth. This remarkable
specimen is appropriate for display, teaching or research, representing
primitive prokaryotic life responsible for forming the atmosphere
that we breathe today. Stromatolites have persisted to the modern
day in such places as Shark Bay, Australia where they continue their
billions of years old lifestyle.
Also
see: Stromatolites |
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