300 Million-Year-Old Fossilized Wheel Discovery in Ukrainian Coal Mine Raises Questions on Human Evolution

Mysterious artifacts found 900 meters underground challenge scientific understanding of human history.

Image edited by the author.

In 2008, a curious discovery was made in a coal mine in the Ukrainian city of Donetsk.

Because it could not be safely or successfully cut due to the nature of the sandstone it was embedded in, the mysterious artifact that looks like an ancient wheel remained embedded in the sandstone in the mine tunnel.
Discovered at a depth of …