The Cambrian explosion was an extraordinary phenomenon in the evolution of life on the planet that led to the emergence of many animal phyla and the diversification of species. During this period, ...

A recently published study—co-authored by Grand Canyon National Park Paleontologist Anne Miller—offers important new insights ...

The Ediacaran-Cambrian transition, occurring approximately 540 million years ago, marked a dramatic diversification of life.

For hundreds of millions of years, the earliest life on Earth mostly took the form of relatively simple organisms. But analysis of the Earth's fossil record shows that there was a remarkable increase ...

Abstract Isotopic ages for the Middle Cambrian–Late Cambrian are few because formations of the appropriate age combining diagnostic fossils and rocks datable by precise isotopic techniques are not ...

IN his attempt to establish as Eocene the age of the salt of the Salt Range of the Punjab, Prof. B. Sahni 1 has succumbed to the temptation of generalizing too far from a particular instance. In 1925 ...

Organically preserved, unicellular microfossils of Ediacaran and Cambrian age, which comprise single and multiple internal bodies within the vesicle, have been studied with a view towards explaining ...

Anderson and Misra 1 have described new fossils from the Pre-Cambrian of Newfoundland and ascribe them to impressions of soft-bodied Metazoa, but they do not discuss why they consider the structures ...