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Stromatolite fossils have been found in areas where there were warm, shallow seas. Some of these fossils are about 3 billion years old! Today, stromatolites are rare, but you can find them in hypersaline salt lakes and lagoons, where they are sheltered from grazing aquatic animals. Shark Bay, in western Australia, is one example.
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When did Stromatolites become extinct?
The are examples of stromatolites still living. They are not extinct.
What (who)are stromatolites?
The stromatolites are the layered mounds, columns, and the sheet-like sedimentary rocks.
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.
What are found on the outer surfaces of stromatolites?
Biofilms of microorganisms, especially cyanobacteria, are found on the outter surfaces of stromatolites.
What are the oldest fossils?
Stromatolites.
How is a structure built?
Stromatolites
During which period did the presence of stromatolites decline?
Proterozoic is called the "Age of Stromatolites" (Abundant in Proterozoic shallow seas)
What fossils are from the Precambrian era?
Stromatolites
Are structures built by cyanobacteria.?
stromatolites
What structures are built by cyanobacteria?
stromatolites
What are the most common precambrian fossils are?
stromatolites
The type of organisms that create stromatolites?
cyanobacteria
