Biogenic Origin For Earth's Oldest Putative Microfossils
Wednesday, July 1, 2009 - 23:14
in Paleontology & Archaeology
Microbes and bacteria were the first living organisms on Earth, and they can be preserved in Archean silica-rich rocks. One such outcrop from western Australia, dated to 3.5 billion years ago, may hold the oldest "microfossils."