Information about Cyanobacteria

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Oil inclusions found in approximately 1400 million-year-old sandstone in the Roper Superbasin, Australia, fluoresce under ultraviolet light. Gas chromatography–mass spectrometry analysis of the oil reveals a complex molecular composition that has remained isolated from environmental influences since its formation. Biomarkers indicate that the oil originated from cyanobacteria, a type of bacteria known for their photosynthetic abilities and contribution to the development of an oxygen-rich atmosphere. These microorganisms also create stromatolites, some of the oldest known fossils. Future research on older samples may provide deeper insights into early microbial life. The discussion also expresses interest in obtaining more information about cyanobacteria, with links provided for further exploration.
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Oil inclusions fluoresce under excitation by ultraviolet light and were found in ~1400 million-yr-old sandstone in the Roper Superbasin, Australia. The molecular composition of the oil determined by careful gas chromatography–mass spectrometry revealed a complex composition that has remained protected from the outside environment since trapping. Biomarkers show that the oil was derived from the remains of bacteria, in particular cyanobacteria. Colonies of these aquatic and photosynthesizing microbes also form stromatolites, which are some of the oldest fossils in the world, and are responsible for having generated an oxygen-rich atmosphere. Future work on even older samples could lead to a richer and more robust record of early microbial life.
I would like to know some more information about Cyanobacteria too, would you please help me ?

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