Fossils offer a glimpse into Earth's ancient life, revealing the origins and evolution of complex organisms. Discoveries like ...

The Cambrian explosion was an extraordinary phenomenon in the evolution of life on the planet that led to the emergence of ...

A new study of ancient fossil trails pushes the origins of complex life deeper into Earth’s history, before the Cambrian Period began.

A new study, led by paleontologists at the Royal Ontario Museum (ROM) is helping resolve the evolution and ecology of Odaraia, a taco-shaped marine animal that lived during the Cambrian period.

The Cambrian period, part of the Paleozoic era, ... The iconic arthropods of the Cambrian were the trilobites, which left a huge number of fossils. Trilobites had flattened, ...

The speed of transition seemed so shockingly abrupt that it amazed and worried even Charles Darwin. It has long been called the “Cambrian explosion." We now know it was not quite so abrupt.

And it turns out these trace fossils – particularly the ones from the transition out of the Ediacaran period and into the Cambrian – have a lot to say. “The Ediacaran fauna was dominated by complex, ...

The first signs of complex animal life begin in the Ediacaran Period, which started more than 600 million years ago. But it's difficult to understand how those organisms relate to the life we see ...

Molecular evidence has long indicated that aquatic animals called bryozoans should be found among the fossils of the Cambrian period, around 541 million years ago. Yet they have been conspicuously ...

This period, taking place some 541-530 million years ago, marks the origins of most modern animal life. But, a second look at these fossils might indicate that’s not such a great fit after all.

Most fossils from before the Cambrian period are either microscopic or little more than faint imprints, making it difficult to infer how these ancestral jellies lived.

Palaeontologists are helping resolve the evolution and ecology of Odaraia, a taco-shaped marine animal that lived during the Cambrian period. Fossils reveal Odaraia had mandibles. Palaeontologists ...