An international team of paleontologists has discovered 1,000- to 900-million-year-old microfossils of a fungus in estuarine shale of the Grassy Bay Formation in Arctic Canada. These multicellular organic-walled microfossils are more than half a billion years older than previously reported occurrences of fungi. Microphotograph of Ourasphaira giraldae. Image credit: Loron et al, doi: 10.1038/s41586-019-1217-0. “Fungi are essential components of modern...
