
Prototaxites: Bizarre fossil may have been an entirely new type of life
Prototaxites formed tall structures like tree trunks, shown in this illustration of a landscape from the Silurian Period RICHARD JONES/SCIENCE PHOTO LIBRARY A bizarre ancient organism previously thought to be a giant fungus may actually belong to an undiscovered branch of the tree of life that mysteriously went extinct. Prototaxites, which lived between 420 million…