Analysis of one Prototaxites species showed that its physical and chemical characteristics were not only different from those of any existing fungus—the didn’t match any existing organism at all.

Scientists don't call it the "Great Dying" for nothing. About 252 million years ago, upward of 80% of all marine species ...

New research sheds light on the earliest days of the earth's formation and potentially calls into question some earlier assumptions in planetary science about the early years of rocky planets.

Chemical analysis suggests the 400-million-year-old fossil Prototaxites was neither plant, animal or fungus – hinting at a mysterious life form that went extinct long ago ...