More than 17,000 species are known to have survived until the mega-extinction that ended the Permian period 251 million years ago. A predator of the Cambrian was the giant, shrimplike Anomalocaris ...

Million-Year-Old Cambrian Fossils Indicate Earliest Known Example of Predator-Prey 'Arms Race' Scientists have found evidence ...

Then, between about 570 and 530 million years ago, another burst of diversification ... Recent research suggests that the period prior to the Cambrian explosion saw the gradual evolution of ...

Hundreds of perforated Cambrian shells reveal distinctive predator-prey dynamics in the ocean 517 million years ago.

FROM 508 MILLION YEARS AGO TO TODAYPreserved in the Burgess Shale of British Columbia, the worm Canadia spinosa was part of an explosion in biodiversity during the Cambrian period that gave birth ...

As its name implies, this includes all of geological time prior to the Cambrian period. Hadean Era ... the planet over its first half-billion years, making it entirely uninhabitable.

Then, about 540 million years ago, something else changed ... dramatically. It was the time of the Cambrian Explosion, an eruption of life when Earth’s very first animals began appearing in the ...

These fossils, dated to approximately 535 million years ago, were found in the early Cambrian Kuanchuanpu biota in southern Shaanxi Province, China. The research, led by Professor Zhang Huaqiao ...