Scientists discovered hidden phosphorus spikes in ancient limestone that may help explain two of Earth’s worst marine mass ...

To study the origins of the Late Ordovician mass extinction (LOME), which might have been partly triggered by marine anoxia, researchers modeled global ocean oxygen conditions using uranium isotopes ...

Dramatic drops in oceanic oxygen, which cause mass extinctions of sea life, come to a natural end – but it takes about a million years. The depletion of oxygen in the oceans is known as “anoxia”, and ...

A quarry illustrating bands of stratified limestone from the ancient seafloor in what is now Mercato San Severino in Italy. Credit: F. Tissot A quarry illustrating bands of stratified limestone from ...

Shark teeth have long fascinated humans. From your average beach-comber stumbling across one embedded in the sand, to a paleontologist trying to determine their ...

A new study describes a period of rapid global climate change in an ice-capped world much like the present -- but 304 million years ago. Within about 300,000 years, atmospheric carbon dioxide levels ...

Climate change today is synonymous with the loss of life. Here’s a sampling of the things it is killing: corals, the Arabian sea, all the polar bears, and Miami. It is also, paradoxically, also ...

A research team is helping to understand why the Permian-Triassic mass extinction event happened and why it took life so long to recover. About 252 million years ago, more than 90 percent of all ...