The discovery of a collection of about 700 fossils known as the Jiangchuan Biota gives scientists a better understanding of ...

How and why the Cambrian explosion occurred has been the subject of debate ever since fossils of this remarkable event were ...

If you trace the animal family tree back through the fossil record, the trail usually goes cold about 539 million years ago. Before this boundary—the start of the famous Cambrian explosion—multicelled ...

The Cambrian is a geologic period of the Paleozoic Era, spanning approximately 539–485 million years ago, characterized by a major diversification of multicellular life known as the Cambrian explosion ...

The Great Unconformity refers to a striking break in Earth’s rock record, where Cambrian rocks rest directly on much older Precambrian basement. In places such as the Grand Canyon, that missing ...

The peculiar Cambrian object known as Brooksella, studied for more than a century, may never have been a fossil at all. New research suggests it could simply be a very unusual rock formed by natural ...