Fossil Bacteria
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The earliest forms of life on earth date to nearly 4 billion years ago and were simple bacteria-like organisms. This section of tiger iron stromatolite is a chemical fossil that shows alternating layers of bacterial activity with abiotic conditions.
Australia
2.5 Ga (billion years ago)
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A Composite Stromatolite
700 Ma old Snowslip Formation, Glacier Nat Park, MT
Museum of the Rockies, Boseman, MT
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A Cyanobacteria (= Blue-green algae) Stromatolite
Ordovician Period of Bolivia
Black Hills Institute Museum, SD
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Condonophycus austini Stromatolite
Pennsylvanian Epoch, Carboniferous Period
Wyoming
Black Hills Institute Museum, SD
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The dark splotches are mostly the cyanobacterium Morania fragmenta
House Range, Millard Co., UT
Middle Cambrian, Wheeler Formation, 505 Ma
personal collection
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Fossil Protozoans & Algae
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Green algae, Yuknessia simplex (Class Chlorophyta)
House Range, Millard Co., UT
Middle Cambrian, Wheeler Formation, 505 Ma
personal collection
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