Previously believed to be plant or fungi, these giant organisms may have been a now-extinct fourth type of life.

Researchers reveal Prototaxites, a giant Devonian fossil, was not a fungus or plant but a unique extinct lineage.

Prototaxites fossils continue to divide scientists. These 400-million-year-old structures may belong to a completely extinct ...

These organisms, lived on our planet about 420-375 million years ago during the Devonian period. They looked like huge ... in 2007 showed that these organisms were most likely ancient giant fungi.

Three hundred and sixty million years ago, in the Devonian era, there were no trees yet. The only animals living on land were invertebrates. But enormous fungi towered over the landscape.

Scientists discovered a 400-million-year-old fossil known as Prototaxites, which does not belong to any known life form ...

Prototaxites, the first giant organism to live on land, have long been thought to have been some sort of plant, fungus or algae. Now, a new research paper ...

4 min read When the Devonian period dawned about 416 million ... lobefins are credited with the giant evolutionary stride that led to the amphibians, making lobefins the ancestors of all four ...