The 500-million-year-old primitive fish without bones or teeth has surprisingly advanced anatomical features. “Based on the ...

Life was flourishing long before the Cambrian "explosion". The question of how ... Many forms seen in the fossil record of the Cambrian disappeared without trace. Once the body plans that proved ...

The fossil record offers snapshots of the past, revealing how life has evolved over millions of years. By studying fossils, ...

3 min read The Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known. The Cambrian Explosion saw ... left a huge number of fossils.

it's when most of the major animal groups appear in the fossil record. The Ediacaran species largely disappear when the Cambrian explosion happens. As such, they straddle an ancient age when the ...

This is an illustration of marine fossils that have existed since the Cambrian. Represented taxa include brachiopods, trilobites, ammonites, bivalves, and decapods. Disclaimer: AAAS and EurekAlert!

Scientists until then had believed that the Cambrian explosion was the point when ... the earliest appearance of Ediacarans in the fossil record. Were they the causes of what happened next?

Before this time, the fossil record is patchy. 'You don't get large body fossils of animals more than ... that some scientists see it as evidence that eyes sparked the Cambrian explosion. 'The ...

A fossil representing the earliest known ... in geological history that immediately precedes the Cambrian, which witnessed a great explosion in the numbers and diversity of lifeforms on Earth.

A new study led by researchers at Durham University have uncovered an incredibly rare and detailed fossil ... the clearest evidence yet that the Cambrian explosion—a rapid burst of evolution ...

This discovery reconciles a major gap between predictions based on molecular data and the lack of described ecdysozoans prior to the rich Cambrian fossils record and adds to our understanding of ...