modern stromatolites or stromatoliths - limestone accretion formed by cyanobacteria, that may be up to 1,000 years old - fossilized stromatolites are the oldest known life forms on earth and can be up to 3.7 billion years old, Hamelin Pool Marine Nature Reserve, Shark Bay, UNESCO World Heritage Site, Western Australia, Australia, Indian Ocean


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Image ID: 0071517-GBE

Stromatolite

modern stromatolites or stromatoliths - limestone accretion formed by cyanobacteria, that may be up to 1,000 years old - fossilized stromatolites are the oldest known life forms on earth and can be up to 3.7 billion years old, Hamelin Pool Marine Nature Reserve, Shark Bay, UNESCO World Heritage Site, Western Australia, Australia, Indian Ocean
Credit to: BluePlanetArchive / Gary Bell

Image dimensions: 3600x5400