An article published in the journal “Geochemical Perspectives Letters” describes a new research on the microfossils of Strelley Pool Formation, in Western Australia, dated from 3.4 billion years ago. A team of researchers led by Dr Julien Alleon of the French IMPPMC and the American MIT provided evidence that the chemical residues of those ancient microfossils match those of more recent bacteria fossils. It’s a confirmation of the biological origin of those formations, for years at the center of discussions.