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That's right; stromatolites are fossils of very old bacterial colonies.

Stromatolites are layered accretionary structures formed in shallow water by the trapping, binding and cementation of sedimentary grains by bio-films of microorganisms, especially cyanobacteria (commonly known as blue-green algae). Stromatolites are a major constituent of the fossil record for about the first 3.5 billion years of life on earth and were responsible for creating the atmosphere we breathe.

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What are the oldest fossils and what have they told us about the first organisms?

Some of the oldest known fossils are stromatolites, dating to 3.5 billion years ago. Stromatolites still exist today. They are round colonies of photosynthetic, single felled organisms without nuclei (prokaryotes).


What are the most common precambrian fossils called?

The most common Precambrian fossils are stromatolites. These are layered structures formed by the growth of cyanobacteria, also known as blue-green algae, in shallow water environments. Stromatolites are important in understanding early life on Earth.


What are the oldest fossils?

Stromatolites.


What fossils are from the Precambrian era?

Stromatolites


Name of the oldest fossil found in Australia?

The oldest fossils in Australia are 3.5 billion year old stromatolites. Stromatolites are layered accretions of prokaryotic microbes, most often made up of photosynthetic organisms. Stromatolites still live in Australia today.


What are the most common precambrian fossils are?

stromatolites


What are the oldest fossil and what have they told us about the first organisms?

Some of the oldest known fossils are stromatolites, dating to 3.5 billion years ago. Stromatolites still exist today. They are round colonies of photosynthetic, single felled organisms without nuclei (prokaryotes).


What have scientist inferred from fossil stromatolites?

Stromatolites were much more abundant on the planet in Precambrian times which means that fossils found around stromatolites are typically from the Precambrian era.


Fossils of organisms found in the early precambrian are all of?

unicellular prokaryoytes


Fossils of organisms found in the early Precambriam are all of?

unicellular prokaryotes


What types of fossils forms wheather there are microbes are present or not?

Fossils can form even if microbes are not present. Microbial fossils, such as stromatolites, can form when microbes are present and leave behind structures or chemical signatures that are preserved in the rock record. Non-microbial fossils can include the preserved remains of plants, animals, or other organisms from ancient environments.


The earliest fossils known so far are fossilized mats of bacteria called what?

Stromatolites.