The Earliest Stromatolites Were Probably Formed By - Web fossils of the earliest known stromatolites, about 3.5 billion years old, are found about 1,000km north, near marble. Stromatolites are layered domes of sediment created by the growth of microorganisms. Web the oldest stromatolites that scientists agree were made by living organisms date back 3.43 billion years, but.
Web the oldest stromatolites that scientists agree were made by living organisms date back 3.43 billion years, but. Stromatolites are layered domes of sediment created by the growth of microorganisms. Web fossils of the earliest known stromatolites, about 3.5 billion years old, are found about 1,000km north, near marble.