Prototaxites: Unraveling the Mystery of an Ancient Giant
Prototaxites formed tall structures like tree trunks, shown in this illustration of a landscape from the Silurian Period
RICHARD JONES/SCIENCE PHOTO LIBRARY
An enigmatic ancient organism, once classified as a colossal fungus, may in fact represent a previously unknown and extinct lineage on the tree of life.
Rethinking Prototaxites: Beyond the Giant Fungus Theory
Prototaxites thrived between 420 and 375 million years ago, during the Silurian and Devonian periods. This organism stood as the earliest known giant terrestrial life form, developing trunk-like forms reaching heights of 8 meters and widths of 1 meter.

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