Some critics, particularly religious fundamentalists, argue that neither fossils nor dating can be trusted, and that their interpretations are better.
"I don't want to over-dramatise it, but I would hypothesise that we shall have to start rewriting the history of mankind after today," he said.
Axel von Berg, a local archaeologist, said the new findings would “amaze experts”.
Scientists are still finding a few new sites where they live today but they were quite abundant on earth some 2 billion years ago, and perhaps earlier.
Geologists credit stromatolite activity for creating the earth's first atmospheric oxygen and making animal life possible.
Scientist Olivia Judson provides this good example of what happens to an adult male gorilla in the tropical rainforests of the Congo; "An adult male gorilla— all 330 pounds of him—will be reduced to a pile of bones and hair within 10 days of his death.
What scavengers like vultures and hyenas leave behind, flies, ants, worms, and bacteria quickly consume.The rejection of the validity of fossils and of dating by religious fundamentalists creates a problem for them: Fossil sequences were recognized and established in their broad outlines long before Charles Darwin had even thought of evolution.Early geologists, in the 1700s and 1800s, noticed how fossils seemed to occur in sequences: certain assemblages of fossils were always found below other assemblages. Since 1859, paleontologists, or fossil experts, have searched the world for fossils.The oldest uncontested fossils on earth are 2 billion year-old stromatolites in Minnesota, Wisconsin, and Ontario.Composed of layers of sediments laid down by colonies of cyanobacteria, stromatolites still exist, but are quite rare today.Organisms usually need to be covered by mud, sand, tar or some other sediment as soon as possible or frozen or dessicated (dried out) for fossilization to occur.