Examples of stromatolite in the following topics:
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- Stromatolites form layered rocks made of carbonate or silicate.
- Although most stromatolites are artifacts from the past, there are places on earth where stromatolites are still forming.
- For example, growing stromatolites have been found in the Anza-Borrego Desert State Park in San Diego County, California.
- (a) These living stromatolites are located in Shark Bay, Australia.
- (b) These fossilized stromatolites, found in Glacier National Park, Montana, are nearly 1.5 billion years old.
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- Stromatolites, sedimentary accretions formed by the actions of cyanobacteria, provide fossil evidence of life on Earth about 3.5 billion years ago.