A discovery hidden inside 520-million-year-old rocks has solved an evolutionary enigma and could even rewrite the entire tree ...

Fossils from 520-million-year-old rocks in China provide the first clear evidence that bryozoans were part of the Cambrian ...

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 ...

Tiny honeycomb-like colonies from southern China have opened a long-running gap in the story of animal life. For decades, ...