After their first appearance 3.48 Ga ago, stromatolites dominated the planet as the sole living carbonate factory for almost three billion years. Stromatolites are also partially responsible for ...

Living in layers below these light-loving ... the mats bind together and harden. Stromatolites, which continue to form today in the coastal waters of northwest Australia and South Africa, create ...

where 3.4 billion-year-old stromatolite fossils have been found. Considering the Earth is about 4.5 billion years old, these are truly ancient. Are the organisms building the living monuments I ...