The 635-million-year-old pyritized fungus-like microfossils found in the Ediacaran-period Doushantuo Formation in China provide direct fossil evidence for the colonization of land by fungi. The 635-million-year-old fungus-like filamentous microfossils from the Doushantuo Formation in China. Image credit: Andrew Czaja, University of Cincinnati. The Ediacaran-period fungus-like fossils were found in small cavities within well-studied sedimentary dolostone...